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

Abstract

The invention 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 structural improvement, the vibration influence of an impact tool on the battery pack in the using 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] The present invention relates to the technical field of impact tools, and in particular to a shock absorbing structure capable of improving the stability of an impact tool battery pack. Background Art

[0002] Power tools, especially impact wrenches, will generate large vibrations during use. This vibration will not only seriously affect the communication of the power source battery pack of the impact wrench and the stability of the battery pack structure, causing the entire machine to not work properly, but also affect the user's operating comfort. As the torque of the tool increases, this problem will become more and more obvious; therefore, it is very important for impact wrenches to do a good job of shock absorption, especially shock absorption between the battery pack and the main machine.

[0003] In the prior art, the utility model with 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 the other end. The housing is provided at one end of the handle, and the battery pack extension foot is provided at the other end of the handle. The housing is used to accommodate the motor and / or the transmission assembly, and the battery pack extension foot is used to install the battery pack. An elastic member is provided between the handle and the battery pack extension foot, and the elastic member is detachably connected to the handle, and the elastic member is detachably connected to the battery pack extension foot. When the whole machine is working, vibration is transmitted from the handle to the elastic member, and then transmitted to the battery pack extension foot after vibration reduction by the elastic member, thereby reducing the vibration impact and achieving a vibration reduction effect. The utility model with application number 202090000645.4 discloses an electric tool, including a motor housing, a motor positioned in the motor housing and configured to rotatably drive an output shaft; a handle connected to the motor housing; a vibration damping assembly located between the motor housing and the handle, the vibration damping assembly including a first connection portion defined by the motor housing, a second connection portion defined by the handle, and an elastic damper stuck between the first connection portion and the second connection portion. The utility model with application number 202323027970.4 discloses a shock absorbing structure for an impact tool, including a battery pack socket, a battery pack rail, and a shock absorbing mechanism for connecting the battery pack socket and the battery pack rail; the shock absorbing mechanism is detachably connected to the battery pack socket and the battery pack rail; the shock absorbing mechanism includes a plurality of connecting pins and a shock absorbing rubber ring; the shock absorbing rubber ring is provided on the battery pack rail, and a connecting through hole for the connecting pin to pass through is provided on the battery pack socket, and after the connecting pin passes through the connecting through hole, both ends are inserted into the shock absorbing rubber ring provided on the battery pack rail.

[0004] During the use of the electric impact tool, there is a certain contact distance between the battery pack socket and the guide rail, which is prone to vibration and affects the stability of the battery pack; and as the use time goes by, the battery pack socket is prone to stretching outward, and the connection between the battery pack socket and the guide rail will become more unstable; and the technical solutions provided in the above-mentioned prior art cannot solve this problem well. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a shock absorbing structure that can improve the stability of an impact tool battery pack. The battery pack socket and the battery pack guide rail are connected by a floating connection, which facilitates installation while enhancing the shock absorbing effect.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a shock-absorbing structure that can improve the stability of the battery pack of 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 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; a plurality of guide rail mounting holes are provided on the left guide rail mounting block and the right guide rail mounting block; shock-absorbing pads are provided on both sides of the left guide rail mounting block and the right guide rail mounting block; a socket mounting block is provided in the battery pack socket, and a plurality of socket mounting holes are provided on the socket mounting block; an installation gap for inserting the left guide rail mounting block and the right guide rail mounting block is reserved between the two sides of the socket mounting block and the inner wall of the battery pack socket; a plurality of connecting pins pass through the guide rail mounting holes and the socket mounting holes to connect the battery pack guide rail with the battery pack socket.

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

[0008] Furthermore, the female plug ends include two or more, which are respectively arranged at the front and rear of the left guide rail; the male plug ends include two or more, which are respectively arranged at the front and rear of the right guide rail; each of the female plug ends is matched and plugged into the corresponding male plug end.

[0009] Furthermore, guide rail connecting pins are provided in the male plug end and the female plug end.

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

[0011] Furthermore, a plurality of first convex holes are provided on one side of the first shock-absorbing pad, the through holes penetrate the first convex holes, and each of the first convex holes is embedded in the corresponding guide rail mounting hole; a second convex hole is provided on one side of the second shock-absorbing pad, the through holes penetrate the second convex holes, and each of the second convex holes is embedded in the corresponding guide rail mounting hole; the sum of the heights of the first convex holes and the second convex holes does not exceed the hole depth of the guide rail mounting hole.

[0012] Furthermore, there is an extension portion below the second shock-absorbing pad. After the battery pack rail is installed in the battery pack socket, the extension portion is located between the outer side of the battery pack rail and the inner side of the battery pack socket, thereby preventing the battery pack rail from expanding outward and enhancing the fixing stability of the battery pack.

[0013] Furthermore, a boss is provided on the outer side of the extension portion, and a step surface matching with the boss is provided on the inner wall of the battery pack socket.

[0014] Furthermore, the socket mounting block comprises a left socket mounting block and a right socket mounting block, and the joints of the left and right socket mounting blocks are meshed with each other.

[0015] The beneficial effects of the present invention are as follows: compared with the prior art, the shock absorbing structure provided by the present invention can improve the stability of the impact tool battery pack, which mainly has the following advantages:

[0016] 1) Through the floating connection 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; not only is the installation method very convenient, but the floating connection method also has a good shock absorption effect;

[0017] 2) The left guide rail and the right guide rail are connected by the male and female plug ends. On the one hand, the installation is simple and quick. On the other hand, compared with the traditional method of only fitting and contacting, the cooperation of the male and female plug ends can make the connection between the left and right guide rails more secure and effectively avoid the expansion in the expansion direction. In a more optimized case, a guide rail connecting pin can also be added inside the male and female plug ends to further enhance the connection effect;

[0018] 3) A first shock-absorbing pad and a second shock-absorbing pad are arranged on both sides of the left guide rail mounting block and the right guide rail mounting block, and the convex holes on the shock-absorbing pads are embedded in the respective guide rail mounting holes, so as to "wrap" the inside and outside of the left and right guide rail mounting blocks, thereby playing a good role in buffering and shock absorption; in addition, an extension part is added to the second shock-absorbing pad so that the extension part is located between the battery pack socket and the battery pack guide rail, which can more effectively prevent the battery pack guide rail from expanding in the expanding direction, thereby ensuring the fixing effect of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the impact tool provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the partial disassembly structure of the shock absorbing structure provided by the present invention.

[0021] Figure 3 A cross-sectional view of the shock absorbing structure provided by the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the impact tool provided by the present invention after removing the battery pack rails and the battery pack.

[0023] Figure 5 This is a schematic structural diagram of the battery pack guide rail in the shock absorbing structure provided by the present invention.

[0024] Figure 6 A schematic diagram of the exploded structure of the battery pack guide rail in the shock absorbing structure provided by the present invention.

[0025] Figure 7 This is a schematic structural diagram of the left guide rail and the right guide rail in the shock absorbing structure provided by the present invention.

[0026] Figure 8 A schematic diagram of the cross-sectional structure of the battery pack guide rail in the shock absorbing structure provided by the present invention.

[0027] Among them, 1-battery pack socket; 101-socket mounting block; 102-socket mounting hole; 103-right socket mounting block; 104-left socket mounting block; 105-mounting 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 convex hole; 503-boss; 7-first shock-absorbing pad; 701-first convex hole; 8-through hole. DETAILED DESCRIPTION

[0028] The present invention is further described below by specific examples, but these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] Example

[0030] like Figures 1 to 8As shown, a shock absorbing structure capable of improving the stability of an impact tool battery pack comprises a battery pack 3, a battery pack guide rail 2 and a battery pack socket 1, wherein 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; a plurality of guide rail mounting holes 205 are provided on the left guide rail mounting block 204 and the right guide rail mounting block 203; Shock-absorbing pads are provided on both sides of the left guide rail mounting block 204 and the right guide rail mounting block 203; a socket mounting block 101 is provided in the battery pack socket 1, and a plurality of socket mounting holes 102 are opened on the socket mounting block 101; an installation gap 105 is reserved between the two sides of the socket mounting block 101 and the inner wall of the battery pack socket 1 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 hole 205 and the socket mounting hole 102 to connect the battery pack guide rail 2 with the battery pack socket 1.

[0031] The shock absorption effect is enhanced by the floating connection between the battery pack socket 1 and the battery pack guide rail 2; during installation, the battery pack guide rail 2 only needs to be inserted into the battery pack socket 1 and then fixed by the connecting pin 4, which is very convenient to install. In actual application, the connecting pins 4 can be one group or two groups. When the number of connecting pins 4 is two groups, the installation is more convenient. Therefore, it is preferred that the connecting pins 4 are two groups; one group of connecting pins 4 is used to connect the left guide rail 202 and the socket mounting block 101, and the other group of connecting pins 4 is used to connect the right guide rail 201 and the socket mounting block 101.

[0032] In this embodiment, a female plug 207 is provided on one side of the left rail 202, and a male plug 206 is provided on one side of the right rail 201; the left rail 202 and the right rail 201 are plugged together by the male plug 206 and the female plug 207. The female plug 207 includes two, which are respectively provided at the front and rear of the left rail 202; the male plug 206 includes two, which are respectively provided at the front and rear of the right rail 201; each female plug 207 is plugged together with the corresponding male plug 206. The cooperation of the male and female plugs can make the connection between the left and right rails 201 more secure, effectively preventing the battery pack rail 2 from being stretched outward.

[0033] In another embodiment, if Figure 8 As shown, a guide rail connecting pin 208 is provided in the male plug end 206 and the female plug end 207. Adding a guide rail connecting pin 208 in 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 first shock-absorbing pad 7 is provided on the inner side of the left guide rail mounting block 204 and the right guide rail mounting block 203, and the second shock-absorbing pad 5 is provided on the outer side of the left guide rail mounting block 204 and the right guide rail mounting block 203; the first shock-absorbing pad 7 and the second shock-absorbing pad 5 are provided with a plurality of through holes 8 through which the connecting pin 4 can pass. A plurality of first convex holes 701 are provided on one side of the first shock-absorbing pad 7, and the through holes 8 penetrate the first convex holes 701, and each of the first convex holes 701 is embedded in the corresponding guide rail mounting hole 205; a second convex hole 502 is provided on one side of the second shock-absorbing pad 5, and the through holes 8 penetrate the second convex holes 502, and each of the second convex holes 502 is embedded in the corresponding guide rail mounting hole 205; the sum of the heights of the first convex holes 701 and the second convex holes 502 does not exceed the hole 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 (such as Figure 3 The first convex hole 701 on the first shock absorbing pad 7 is inserted into the guide rail mounting hole 205 on the left guide rail mounting block 204 or the right guide rail mounting block 203, and the first convex hole 701 is slightly interference fit with the guide rail mounting hole 205. The main body of the first shock absorbing pad 7 is closely attached to the inner side surface of the left guide rail mounting block 204 or the right guide rail mounting block 203, and protrudes from the plane where the inner side surface 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 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 weakened under the buffering effect of the first convex hole 701; on the other hand, due to the buffering effect of the main body of the first shock absorbing pad 7, the vibration between the battery pack socket 1 and the battery pack guide rail 2 is weakened between the socket mounting block 101 and the left guide rail mounting block 204 or the right guide rail mounting block 203.

[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 (such as Figure 3The second convex hole 502 on the second shock absorbing pad 5 is inserted into the guide rail mounting hole 205 on the left guide rail mounting block 204 or the right guide rail mounting block 203, and the second convex hole 502 and the guide rail mounting hole 205 are slightly interference fit, and the main body of the second shock absorbing pad 5 is close to the outer side surface 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 surface 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 weakened under the buffering effect of the second convex hole 502; on the other hand, due to the buffering effect of the main body of the second shock absorbing pad 5, the vibration between the battery pack socket 1 and the battery pack guide rail 2 is weakened.

[0037] In another embodiment, an extension portion 501 is provided below the second shock-absorbing pad 5. After the battery pack guide rail 2 is installed in the battery pack socket 1, the extension portion 501 is located between the outer side of the battery pack guide rail 2 and the inner side of the battery pack socket 1. A boss 503 is provided on the outer side of the extension portion 501, and a step surface 106 cooperating with the boss 503 is provided on the inner wall of the battery pack socket 1. This can effectively prevent the battery pack guide rail 2 from expanding outward, thereby enhancing the fixing 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 , and the joints of the left and right socket mounting blocks are engaged with each other for easy installation.

[0039] In order to achieve the shock absorption effect, the main improvements of the above shock absorption structure can be summarized as follows:

[0040] 4) Through the floating connection 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 mounting 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 the male and female plug ends. On the one hand, the installation is simple and quick. On the other hand, compared with the traditional method of only fitting and contacting, the cooperation of the male and female plug ends can make the connection and cooperation of the left and right guide rails more secure, effectively avoiding the expansion in the expansion direction; in a more optimized case, a guide rail connecting pin 208 can also be added inside the male and female plug ends to further enhance the connection effect;

[0042] 6) A first shock-absorbing pad 7 and a second shock-absorbing pad 5 are arranged on both sides of the left guide rail mounting block 204 and the right guide rail mounting block 203, and the convex holes on the shock-absorbing pads are embedded in each guide rail mounting hole 205, so as to "wrap" the inside and outside of the left and right guide rail mounting blocks 203, thereby playing a good buffering and shock-absorbing role; in addition, an extension portion 501 is added to the second shock-absorbing pad 5, so that the extension portion 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 expanding in the expanding direction, thereby ensuring the fixing effect of the battery pack.

[0043] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A shock absorbing structure capable of improving the stability of an impact tool battery pack, 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 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; a plurality of guide rail mounting holes are provided on the left guide rail mounting block and the right guide rail mounting block; shock-absorbing pads are provided on both sides of the left guide rail mounting block and the right guide rail mounting block; a socket mounting block is provided in the battery pack socket, and a plurality of socket mounting holes are provided on the socket mounting block; installation 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; a plurality of connecting pins pass through the guide rail mounting holes and the socket mounting holes to connect the battery pack guide rail with the battery pack socket.

2. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 1, characterized in that: A female plug end is provided on one side of the left guide rail, and a male plug end is provided on one side of the right guide rail; the left guide rail and the right guide rail are plug-connected by the male plug end and the female plug end.

3. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 2, characterized in that: The female plug ends include two or more, which are respectively arranged at the front and rear of the left guide rail; the male plug ends include two or more, which are respectively arranged at the front and rear of the right guide rail; each of the female plug ends is matched and plugged into the corresponding male plug end.

4. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 2 or 3, characterized in that: Guide rail connecting pins are arranged inside the male plug end and the female plug end.

5. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 1, characterized in that: The shock-absorbing pad includes a first shock-absorbing pad and a second shock-absorbing pad; the first shock-absorbing pad is provided on the inner side of the left mounting block and the right mounting block, and the second shock-absorbing pad is provided on the outer side of the left mounting block and the right mounting block; the first shock-absorbing pad and the second shock-absorbing pad are provided with a plurality of through holes for the connecting pin to pass through.

6. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 5, characterized in that: A plurality of first convex holes are provided on one side of the first shock-absorbing pad, the through holes penetrate the first convex holes, and each of the first convex holes is embedded in the corresponding guide rail mounting hole; a second convex hole is provided on one side of the second shock-absorbing pad, the through holes penetrate the second convex holes, and each of the second convex holes is embedded in the corresponding guide rail mounting hole; the sum of the heights of the first convex holes and the second convex holes does not exceed the hole depth of the guide rail mounting hole.

7. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 5 or 6, characterized in that: There is an extension portion below the second shock-absorbing pad. After the battery pack rail is installed in the battery pack socket, the extension portion is located between the outer side of the battery pack rail and the inner side of the battery pack socket, so as to prevent the battery pack rail from expanding outward and enhance the fixing stability of the battery pack.

8. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 7, characterized in that: A boss is provided on the outer side of the extension portion, and a step surface matching the boss is provided on the inner wall of the battery pack socket.

9. A shock absorbing structure capable of improving the stability of an impact tool battery pack as claimed in claim 1, characterized in that: The socket mounting block comprises a left socket mounting block and a right socket mounting block, and the joints of the left and right socket mounting blocks are meshed with each other.

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