Damping block structure

Abstract

The utility model discloses a kind of shock-absorbing block structures, including battery socket and the battery pack of being clamped with it tight cooperation;At least one shock-absorbing elastic member is embedded in one side of battery socket, the lower end of the shock-absorbing elastic member is stretched out battery socket lower end surface, can be tightly attached with battery pack upper end surface under battery pack extrusion.The shock-absorbing elastic member is made of rubber, including shock-absorbing main body and the at least two limiting convex columns of interval being arranged in the outside of shock-absorbing main body;Battery socket lower end is provided with the installation groove of being cooperated with shock-absorbing main body, and the positioning groove for accommodating limiting convex column is provided with in installation groove side, the positioning groove opening is upward, the side of positioning groove close to installation groove is provided with the perforation of being communicated with positioning groove and installation groove, after the limiting convex column passes through perforation, it is placed in positioning groove.Shock-absorbing elastic member is extruded deformation by battery pack, and the clearance between battery socket and battery pack is eliminated with battery pack, so as to reduce the amplitude of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction in electric impact tools, specifically to a vibration damping block structure. Background Technology

[0002] Electric impact tools include a battery socket and a battery pack connected to the lower end of the handle. The battery pack and the battery socket are locked together by various snap-fit ​​designs. This design allows for quick battery pack replacement and improves work efficiency, but it inevitably creates an assembly gap between the battery pack and the battery socket. Such electric impact tools generate significant vibration during use. To prevent excessive vibration from affecting the communication and structural stability of the battery pack, a shock-absorbing elastic element is usually installed between the battery socket and the handle to dampen the vibration of the battery socket. For example, Chinese Patent Application No. 2024219196501 discloses an electric wrench with a shock-absorbing device, which includes a handle, a drive body, a controller connector, and a battery pack. A positioning groove is provided below the handle, and a positioning protrusion with several positioning teeth is provided below the positioning groove. The controller connector is located below the handle, and the battery pack is located below the controller connector. The controller connector and handle adopt a split structure design. A limit shock absorber is set between the controller connector and the handle, which can play a buffering role in the event of a fall from a height. The addition of the limit shock absorber can effectively protect the electronic chip control panel and battery pack, achieving the effect of shock absorption.

[0003] However, during operation, the assembly gap between the battery connector and the battery pack increases the relative displacement between them, leading to increased vibration amplitude, which in turn shortens the battery pack's lifespan and affects its stability. Current technology does not address vibration reduction caused by this assembly gap. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a vibration damping block structure to solve the problem that the assembly gap formed between the existing battery connector and the battery pack can easily increase the relative displacement between the battery pack and the battery connector during operation, thus shortening the battery pack life.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A vibration damping block structure includes a battery connector and a battery pack that engages with it. At least one vibration damping elastic element is embedded on one side of the battery connector, with its lower end extending beyond the lower surface of the battery connector, allowing it to press against the upper surface of the battery pack under pressure. By providing a vibration damping elastic element at the lower end of the battery connector, and with its lower end extending beyond the corresponding lower surface of the battery connector, when the battery pack is secured to the battery connector, the upper surface of the battery pack will compress the vibration damping elastic element, deforming it upwards. This allows the battery connector to elastically contact the battery pack through the vibration damping elastic element, eliminating the gap between the battery connector and the battery pack after compression. This reduces the vibration amplitude of the battery pack, effectively reducing the relative displacement between the battery pack and the battery connector during operation, and increasing the battery pack's lifespan and stability. Meanwhile, the shock-absorbing elastic element is embedded in the battery socket and can be pried out and replaced with tools, making installation and removal relatively convenient.

[0006] Furthermore, the shock-absorbing elastic element is made of rubber and includes a shock-absorbing body and at least two limiting protrusions spaced apart on the outside of the shock-absorbing body. A mounting groove that mates with the shock-absorbing body is provided at the lower end of the battery connector. A positioning groove for accommodating the limiting protrusions is provided on the side of the mounting groove. The positioning groove has an upward-facing opening, and a through hole connecting the positioning groove and the mounting groove is provided on the side of the positioning groove near the mounting groove. The limiting protrusion passes through the through hole and is placed in the positioning groove. Thus, the shock-absorbing body of the shock-absorbing elastic element is placed in the mounting groove, and its side end passes through the through hole and is placed in the positioning groove. Because the limiting protrusions protrude outward from the side of the shock-absorbing body, they are not easily dislodged after being inserted into the positioning groove. During insertion, because the limiting protrusions are made of rubber, they can deform under external force, thus allowing them to be squeezed into the positioning groove from the through hole.

[0007] Furthermore, the vertical projections of the mounting groove and the positioning groove overlap, and the sum of the depths of the mounting groove and the positioning groove is greater than the total thickness of the slot on the battery connector, allowing the bottoms of the mounting groove and the positioning groove to be interconnected, naturally forming the perforation. The bottoms of the mounting groove and the positioning groove partially overlap in the vertical direction, and the overlapping area is partially connected to form the perforation. This perforation effectively ensures that the limiting protrusion passes through and is convenient during casting demolding.

[0008] Furthermore, the shock absorber body has three limiting protrusions arranged in a triangle, with two cylindrical and one rounded cube. This three-point limiting protrusion design provides three-point restraint for the shock absorber body, preventing it from easily loosening during vibration. The cylindrical shape of the limiting protrusion facilitates its passage through the perforation, while the rounded cube shape, with its rounded sides, also facilitates its passage through the perforation.

[0009] Furthermore, the upper surface of the limiting protrusion is on the same plane as the upper surface of the shock absorber body, or the upper end extends upwards, higher than the upper surface of the shock absorber body. In this way, after the limiting protrusion extends outwards, its upper surface is on the same plane as the shock absorber body, making it easier and faster to engage with the positioning groove. If, after extending outwards, the upper end further extends upwards, then after engaging with the positioning groove, the upper end is higher than the through hole and placed within the positioning groove, resulting in more stable positioning, but engaging will be more difficult.

[0010] Furthermore, the mounting groove and the shock absorber body are fitted with a clearance fit, forming a triangle. This creates a certain gap between the shock absorber body and the mounting groove, providing sufficient clearance for the locking protrusion to engage, thus facilitating its insertion. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation structure of the battery pack shock absorption structure in the embodiment; Figure 2 This is a top view of the battery connector and shock-absorbing elastic element in Example 1. Figure 3 for Figure 2 Enlarged view of part 1; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of CC. Figure 5 This is a three-dimensional structural diagram of the shock-absorbing elastic element in Example 1; Figure 6 This is a three-dimensional structural diagram of the shock-absorbing elastic element in Example 2; Figure 7 This is a partial installation structure diagram of the shock-absorbing elastic element and the battery connector in Example 2. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0013] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] Existing electric impact tools have an assembly gap between the battery connector and the battery pack. This gap increases the relative displacement between the battery pack and the connector, leading to increased vibration amplitude, shortened battery pack life, and reduced battery pack stability. Therefore, the vibration damping structure in this embodiment is designed to eliminate the assembly gap and increase battery pack life.

[0015] Example 1 like Figures 1-5As shown, this embodiment provides a vibration damping block structure, including a battery connector 1 and a battery pack 3 that is clamped to it; two shock-absorbing elastic members 2 are embedded on one side of the battery connector 1, the two shock-absorbing elastic members 2 are spaced apart, and the lower end of the shock-absorbing elastic member 2 extends out of the lower end face of the battery connector 1, so that it can be pressed tightly against the upper end face of the battery pack 3 under the pressure of the battery pack 3. In this way, a shock-absorbing elastic element 2 is provided at the lower end of the battery connector 1, and the lower end face of the shock-absorbing elastic element 2 extends beyond the corresponding lower end face of the battery connector 1. When the battery pack 3 is snapped and fixed onto the battery connector 1, the upper end face of the battery pack 3 will compress the shock-absorbing elastic element 2 at that location, deforming it upwards. This allows the battery connector 1 to elastically contact the battery pack 3 through the shock-absorbing elastic element 2, and eliminates the gap between the battery connector 1 and the battery pack 3 after compression, thereby reducing the vibration amplitude of the battery pack 3 and effectively reducing the relative displacement between the battery pack 3 and the battery connector 1 during operation, increasing the service life and stability of the battery pack 3. Furthermore, the shock-absorbing elastic element 2 is embedded in the battery connector 1 and can be pried out and replaced with tools, making installation and removal convenient.

[0016] Furthermore, the shock-absorbing elastic element 2 is made of rubber and includes a shock-absorbing body 21 and three triangularly distributed limiting protrusions 22 spaced apart on the outside of the shock-absorbing body 21. A mounting groove 11 (with its opening facing downwards) is provided at the lower end of the battery connector 1 to mate with the shock-absorbing body 21. A positioning groove 12 for accommodating the limiting protrusions 22 is provided on the side of the mounting groove 11, with its opening facing upwards. A through hole 13 connecting the positioning groove 12 and the mounting groove 11 is provided on the side of the positioning groove 12 closest to the mounting groove 11. The limiting protrusions 22 pass through the through hole 13 and are placed inside the positioning groove 12. Thus, the shock-absorbing body 21 of the shock-absorbing elastic element 2 is placed in the mounting groove 11, and its side end passes through the through hole 13 and is placed inside the positioning groove 12. Because the limiting protrusions 22 protrude outwards from the side of the shock-absorbing body 21, they are not easily dislodged after being inserted into the positioning groove 12. When inserted, the limiting protrusions 22 are made of rubber and can deform under external force, thus being squeezed into the positioning groove 12 through the perforation 13. With three limiting protrusions 22, the shock absorber body 21 can be limited at three points, making it less prone to loosening during vibration.

[0017] In this embodiment, the vertical projections of the mounting groove 11 and the positioning groove 12 overlap. The sum of the depths of the mounting groove 11 and the positioning groove 12 is greater than the total thickness of the slot on the battery connector 1, allowing the bottoms of the mounting groove 11 and the positioning groove 12 to be interconnected, naturally forming the perforation 13. This facilitates demolding from the top and bottom during injection molding, forming the mounting groove 11, the positioning groove 12, and the interconnected perforation 13.

[0018] like Figure 5 As shown, of the three limiting protrusions 22, two are cylindrical and the other is a rounded cube. The upper ends of the limiting protrusions 22 extend upwards, all exceeding the upper surface of the shock-absorbing body 21. The upper end of one of the limiting protrusions 22 extends beyond the positioning groove 12, slightly exceeding it, allowing it to contact the lower end of the handle for shock absorption. Thus, making the limiting protrusion 22 cylindrical facilitates its passage through the through hole 13, while the rounded cube shape, with its rounded sides, also facilitates its passage through the through hole 13. After extending outwards, the upper surface of the limiting protrusion 22 is on the same plane as the shock-absorbing body 21, making it easier and faster to engage with the positioning groove 12. If, after extending outwards, the upper end further extends upwards, it can be positioned higher than the through hole 13 after engaging with the positioning groove 12, resulting in more stable positioning, but engagement will be more difficult.

[0019] Specifically, the perforation 13 in this embodiment consists of two parts. One part is a vertical perforation 13 with a height slightly greater than the vertical distance between the lower end face of the limiting protrusion 22 and the upper end face of the shock-absorbing body 21. The other part is an irregularly shaped hole that connects to the vertical perforation 13 and is opened at the bottom of the mounting groove 11. The irregularly shaped hole is arc-shaped for the cylindrical limiting protrusion 22 and rectangular for the rounded cubic limiting protrusion 22. The area of ​​each irregularly shaped hole is smaller than the cross-section of the corresponding limiting protrusion 22, which ensures that the limiting protrusion 22 can pass through without causing it to fall off due to vibration during use.

[0020] Furthermore, the mounting groove 11 and the shock absorber body 21 are fitted with a clearance and are triangular in shape. In this way, there is a certain gap between the shock absorber body 21 and the mounting groove 11, so that there is a certain amount of clearance space when the limiting protrusion 22 is engaged, which facilitates the engagement of the limiting protrusion 22.

[0021] Example 2 The difference between this embodiment and embodiment 1 lies in the structure of the limiting protrusion 22 in each shock-absorbing elastic element 2, such as... Figure 6 , Figure 7 As shown, in this embodiment, the longitudinal height of the limiting protrusion 22 is less than the thickness of the damping body 21, and its upper end face is on the same plane as the upper end face of the damping body 21. Compared with the damping elastic member 2 in Embodiment 1, the limiting protrusion 22 in this embodiment is easier and more convenient to insert into the positioning groove 12, but its limiting performance is slightly worse than that in Embodiment 1.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A vibration damping block structure, comprising a battery connector and a battery pack that is clamped together therewith; characterized in that, At least one shock-absorbing elastic element is embedded on one side of the battery connector. The lower end of the shock-absorbing elastic element extends beyond the lower end face of the battery connector and can be tightly attached to the upper end face of the battery pack under the pressure of the battery pack.

2. The vibration damping block structure according to claim 1, characterized in that, The shock-absorbing elastic element is made of rubber and includes a shock-absorbing body and at least two limiting protrusions spaced apart on the outside of the shock-absorbing body. A mounting groove that mates with the shock-absorbing body is provided at the lower end of the battery socket. A positioning groove for accommodating the limiting protrusions is provided on the side of the mounting groove. The opening of the positioning groove faces upward. A through hole connecting the positioning groove and the mounting groove is provided on the side of the positioning groove near the mounting groove. The limiting protrusion passes through the through hole and is placed in the positioning groove.

3. The vibration damping block structure according to claim 2, characterized in that, The mounting groove and the positioning groove overlap in their vertical projections. The sum of the depths of the mounting groove and the positioning groove is greater than the total thickness of the slot on the battery connector, so that the bottoms of the mounting groove and the positioning groove are interconnected, naturally forming the perforation.

4. The vibration damping block structure according to claim 2, characterized in that, The shock absorber body has three limiting protrusions arranged in a triangle, with two cylindrical and one rounded cube.

5. The vibration damping block structure according to any one of claims 2-4, characterized in that, The upper end face of the limiting protrusion is on the same plane as the upper end face of the shock absorber body, or the upper end extends upward and is higher than the upper end face of the shock absorber body.

6. The vibration damping block structure according to claim 5, characterized in that, The mounting groove fits the shock absorber body with a clearance and is triangular in shape.

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