A fatigue testing device for a weight plate of a fitness machine

Abstract

The utility model provides a kind of fitness equipment weight piece anti-fatigue testing device, it is related to fitness equipment detection technical field, including device base, the device base top both sides are equipped with support seat, and the support seat between both sides is bolted and fixedly connected with test sliding seat by front and back, the test sliding seat side is equipped with sliding slot, the test sliding seat front is equipped with connecting groove, the sliding slot is slidably connected with test weight piece, the test weight piece outer surface is equipped with multiple through holes, the device base side is equipped with driving assembly, the test weight piece and sliding slot between are equipped with first connecting assembly, the driving assembly and first connecting assembly between are equipped with second connecting assembly.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment testing technology, and in particular to a fatigue testing device for fitness equipment weight plates. Background Technology

[0002] As core load-bearing components of equipment such as dumbbells and barbells, weight plates in fitness equipment must withstand repeated load impacts during long-term, high-frequency use. Their fatigue resistance directly affects user safety and product lifecycle. With increasing demands for product quality in the fitness equipment market, fatigue resistance testing of weight plates before they leave the factory has become a necessary step. However, there is currently a significant gap and deficiency in the market supply of fatigue resistance testing devices specifically designed for fitness equipment weight plates. From the current market situation, on the one hand, there is a general lack of dedicated fatigue testing devices for weight plates in fitness equipment. Most fitness equipment manufacturers, especially small and medium-sized enterprises, do not yet have suitable professional testing equipment. They can only indirectly infer fatigue resistance by manually simulating the sliding of weight plates and using general mechanical testing instruments. This method not only fails to accurately reproduce the reciprocating force state of the weight plates in actual use, but also results in highly subjective and poor repeatability of test data. Furthermore, it is difficult to meet the high-efficiency testing requirements in mass production, leading to some weight plates with potential fatigue risks entering the market. On the other hand, while a few large equipment manufacturers have customized weight plate testing devices, these devices generally suffer from complex structures and high prices. These customized devices often integrate too many unnecessary functions (such as multi-dimensional load real-time monitoring, fully automatic data traceability systems, etc.), resulting in bulky equipment, with the core testing structure wrapped in redundant components. Operation requires training from professional technicians. At the same time, the customization cost can easily reach hundreds of thousands of yuan, and subsequent maintenance relies on the original manufacturer's technical support, resulting in high maintenance costs that are difficult for small and medium-sized manufacturers to afford. This further exacerbates the market supply gap for professional testing devices, making the industry lack a standardized device with a simple structure, controllable cost, and specifically designed for weight plate fatigue testing for a long time. Therefore, we propose a weight plate fatigue testing device for fitness equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a fatigue testing device for weight plates of fitness equipment, in order to solve the problems mentioned in the background art, such as the general lack of dedicated fatigue testing devices for weight plates of fitness equipment, the reliance of most manufacturers on manual simulation or general instruments leading to inaccurate and inefficient testing, and the fact that a few customized devices are complex in structure, expensive, difficult to disassemble and maintain, and difficult for small and medium-sized manufacturers to afford. The goal is to achieve the purpose of being able to reproduce the actual reciprocating stress state of the weight plates, with accurate and efficient testing, and with a simple structure, convenient disassembly and maintenance, and controllable cost, making it suitable for use by small and medium-sized manufacturers and filling the gap in standardized low-cost testing devices in the industry.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A fatigue testing device for fitness equipment weight plates includes a base. Support seats are provided on both sides of the top of the base. A test sliding seat is bolted to both the front and back of each support seat. A sliding groove is provided on one side of each test sliding seat. A connecting groove is provided through the front of each test sliding seat. A test weight plate is slidably connected within the sliding groove. Multiple through holes are provided on the outer surface of each test weight plate. A driving assembly is provided on one side of the base. A first connecting assembly is provided between the test weight plate and the sliding groove. A second connecting assembly is provided between the driving assembly and the first connecting assembly.

[0005] As a preferred embodiment of this utility model, a fixing rod is provided between the support bases, and mounting bases are fixedly connected to the bottom of the outer surfaces of the support bases on both sides, and the mounting bases and the device bases are bolted together.

[0006] As a preferred embodiment of this utility model, the drive assembly includes a drive seat located on one side of the top of the device base, near the front and back sides. Each drive seat has a drive motor inside, and the output end of the drive motor is connected to an L-shaped connecting rod.

[0007] As a preferred embodiment of this utility model, each of the L-shaped connecting rods is provided with a connecting shaft at the other end, and a first abutting block is sleeved on the connecting shaft and connected to the other end of the L-shaped connecting rod.

[0008] As a preferred embodiment of this utility model, the first connecting assembly includes a first connecting rod, the other end of which is provided with a threaded portion. One end of the first connecting rod is connected to a second abutting block for abutting against the outer wall of the connecting groove on the back side. A third abutting block is sleeved on the first connecting rod, and the third abutting block abuts against the outer wall of the test weight plate and is located inside the connecting groove.

[0009] As a preferred embodiment of this utility model, the threaded part is threadedly connected to a first connecting sleeve. One end of the first connecting sleeve abuts against the outer wall of the test weight plate, and the other end of the first connecting sleeve is provided with a fourth abutting block abutting against the outer wall of the connecting groove. The other end of the fourth abutting block is provided with a second connecting sleeve connected to the second connecting assembly.

[0010] As a preferred embodiment of this utility model, the second connecting component includes two movable blocks, a threaded rod is provided between the two movable blocks, and a connecting rod is provided between the threaded rods.

[0011] As a preferred embodiment of this utility model, the two movable blocks are respectively sleeved on the second connecting sleeve and the connecting shaft, and the other end of the connecting shaft and the first connecting rod are threaded with abutment nuts.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the design of the slide groove (for the test weight plate to slide), the drive assembly (to provide power), and the first and second connecting assemblies (to transmit power) can restore the actual reciprocating force state of the weight plate; at the same time, with the cooperation of the drive motor → L-shaped connecting rod → connecting assembly → weight plate, no manual intervention is required, the test is accurate and efficient, and unqualified weight plates are prevented from entering the market. In this utility model, the core components are detachable through the design of the mounting base (bolt-connected base), threaded part (connected to the connecting sleeve), and movable block (sleeve connecting shaft); at the same time, with the cooperation of bolt quick release, thread locking, and anti-loosening abutment nut, ordinary employees can disassemble and maintain it, which is low-cost and has short downtime, making it suitable for small and medium-sized manufacturers. In this invention, a simple framework of "device base - support seat - test sliding seat" is used to eliminate redundant functions, retaining only the fixing rod (stabilizing structure) and core power components; at the same time, with the cooperation of the fixing rod and compact components, the equipment cost is controllable and the size is small, filling the gap in low-cost standardized testing devices in the industry. Attached Figure Description

[0013] Figure 1 A first-view schematic diagram of a fatigue testing device for weight plates of fitness equipment provided by this utility model; Figure 2 A second-view schematic diagram of a fatigue testing device for weight plates of fitness equipment provided by this utility model; Figure 3 A partial structural diagram of the test sliding seat and test weight plate of a fatigue testing device for fitness equipment weight plates provided by this utility model; Figure 4 A partial structural diagram showing the connection between the first connecting component and the test sliding seat and the test weight plate of a fatigue testing device for fitness equipment weight plates provided by this utility model. Figure 5 A partial structural diagram of the connection between the drive assembly and the second connecting assembly of a fitness equipment weight plate fatigue testing device provided by this utility model.

[0014] Legend: 1. Device base; 2. Support seat; 201. Fixed rod; 202. Mounting seat; 3. Test sliding seat; 301. Slide groove; 302. Connecting groove; 4. Test weight plate; 401. Through hole; 5. Drive assembly; 501. Drive seat; 502. Drive motor; 503. L-shaped connecting rod; 5031. Connecting shaft; 5032. First abutment block; 6. First connecting assembly; 601. First connecting rod; 602. Threaded part; 6021. First connecting sleeve; 6022. Fourth abutment block; 6023. Second connecting sleeve; 603. Second abutment block; 6031. Third abutment block; 7. Second connecting assembly; 701. Movable block; 702. Threaded rod; 703. Connecting rod; 8. Abutment nut. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Example

[0020] like Figures 1-5As shown, this utility model provides a technical solution: a fatigue testing device for fitness equipment weight plates, including a device base 1, with support seats 2 on both sides of the top of the device base 1, and a test sliding seat 3 bolted between the two support seats 2 near the front and back. Each side of the test sliding seat 3 has a groove 301 for sliding the test weight plate 4, and a connecting groove 302 is provided through the front of each test sliding seat 3. The test weight plate 4 is slidably connected within the groove 301, and multiple through holes 401 are provided through the outer surface of each test weight plate 4. A driving component 5 for driving the reciprocating motion of the test weight plate 4 is provided on one side of the device base 1. A first connecting component 6 for connecting the test weight plate 4 to the test sliding seat 3 and driving its sliding is provided between the test weight plate 4 and the groove 301. A second connecting component 7 for transmitting driving force is provided between the driving component 5 and the first connecting component 6.

[0021] A fixing rod 201 is provided between the support bases 2 to enhance the structural stability. Mounting bases 202 are fixedly connected to the bottom of the outer surface of the support bases 2 on both sides. The mounting bases 202 and the device base 1 are bolted together to realize the detachable fixing of the support bases 2.

[0022] The drive assembly 5 includes a drive seat 501 located on the top side of the device base 1, near the front and back. The drive seat 501 has a drive motor 502 inside it that provides power. The output end of the drive motor 502 is connected to an L-shaped connecting rod 503 that converts the rotational motion into reciprocating driving force.

[0023] The other end of each L-shaped connecting rod 503 is provided with a connecting shaft 5031. A first abutting block 5032 is sleeved on the connecting shaft 5031 and connected to the other end of the L-shaped connecting rod 503. The first abutting block 5032 is used to limit the axial displacement of the second connecting assembly 7.

[0024] The first connecting assembly 6 includes a first connecting rod 601, with a threaded portion 602 at the other end of each first connecting rod 601. One end of the first connecting rod 601 is connected to a second abutting block 603 for abutting against the outer wall of the back connecting groove 302. A third abutting block 6031 is sleeved on the first connecting rod 601. The third abutting block 6031 abuts against the outer wall of the test weight plate 4 and is located inside the connecting groove 302. The first connecting rod 601 is relatively fixed to the test sliding seat 3 and the test weight plate 4 through the cooperation of the second abutting block 603 and the third abutting block 6031.

[0025] The threaded part 602 is threadedly connected to a first connecting sleeve 6021. One end of the first connecting sleeve 6021 abuts against the outer wall of the test weight plate 4 to enhance connection stability. The other end of the first connecting sleeve 6021 is provided with a fourth abutting block 6022 that abuts against the outer wall of the connecting groove 302. The other end of the fourth abutting block 6022 is provided with a second connecting sleeve 6023 that is connected to the second connecting assembly 7. The axial movement of the first connecting rod 601 in the connecting groove 302 is restricted by the cooperation between the fourth abutting block 6022 and the second abutting block 603.

[0026] The second connecting component 7 includes two movable blocks 701, a threaded rod 702 between the two movable blocks 701, and a connecting rod 703 between the threaded rods 702. The distance between the two movable blocks 701 can be adjusted by the threaded rod 702 to adapt to different stroke requirements.

[0027] Two movable blocks 701 are respectively fitted onto the second connecting sleeve 6023 and the connecting shaft 5031 to achieve a rotatable connection. The other end of the connecting shaft 5031 and the first connecting rod 601 are threaded with abutment nuts 8. The abutment nuts 8 are used to prevent the movable blocks 701 from disengaging from the connecting shaft 5031 and the second connecting sleeve 6023.

[0028] The working process of this utility model is as follows: When using a fitness equipment weight plate fatigue testing device, the assembly of each component is completed first. The device base 1 is fixed to the support base 2 by bolts through the mounting base 202. The fixing rod 201 between the support bases 2 enhances the overall structural stability. The test sliding seat 3 between the two support bases 2 is fixed by bolts. The test weight plate 4 is embedded in the sliding groove 301 of the test sliding seat 3 to achieve sliding cooperation.

[0029] In the first connecting assembly 6, the first connecting rod 601 passes through the connecting groove 302 of the test sliding seat 3, and the second abutting block 603 at one end abuts against the outer wall of the back of the connecting groove 302. The third abutting block 6031, which is sleeved on the first connecting rod 601, abuts against the outer wall of the test weight plate 4 and is located in the connecting groove 302. The two cooperate to fix the first connecting rod 601 relative to the test sliding seat 3 and the test weight plate 4. Then, the first connecting sleeve 6021 is threadedly connected to the threaded part 602 of the first connecting rod 601. One end of the sleeve abuts against the outer wall of the test weight plate 4 to enhance the connection stability, and the fourth abutting block 6022 at the other end abuts against the outer wall of the front of the connecting groove 302. It cooperates with the second abutting block 603 to restrict the axial movement of the first connecting rod 601. The second connecting sleeve 6023 at the end of the fourth abutting block 6022 is used to connect the second connecting assembly 7.

[0030] The drive motor 502 of the drive assembly 5 is fixed on the drive seat 501 of the device base 1. The other end of the L-shaped connecting rod 503 connected to its output end is connected to the second connecting assembly 7 via the connecting shaft 5031. The first abutment block 5032 on the connecting shaft 5031 restricts the axial displacement of the second connecting assembly 7. The two movable blocks 701 of the second connecting assembly 7 are respectively sleeved on the connecting shaft 5031 and the second connecting sleeve 6023. The distance between the two movable blocks 701 is adjusted by the threaded rod 702 to adapt to different test strokes. The abutment nuts 8 at the ends of the connecting shaft 5031 and the first connecting rod 601 prevent the movable blocks 701 from disengaging. After the drive motor 502 is started... The motor output shaft drives the L-shaped connecting rod 503 to rotate. The L-shaped connecting rod 503 transmits the rotational motion to the second connecting assembly 7 through the connecting shaft 5031. The rotational motion is converted into reciprocating driving force through the movable block 701, the threaded rod 702, and the connecting rod 703. This force is transmitted to the first connecting assembly 6 through the second connecting sleeve 6023, which drives the first connecting rod 601 to reciprocate along the connecting groove 302. This, in turn, drives the test weight plate 4 to reciprocate within the sliding groove 301, simulating the repeated stress state of the weight plate in actual use. The fatigue resistance is tested through continuous cyclic motion. During the process, each contact structure ensures stable power transmission and avoids loosening of components that may affect the test accuracy.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fatigue testing device for weight plates in fitness equipment, characterized in that, The device includes a base (1), and a support seat (2) is provided on both sides of the top of the base (1). A test sliding seat (3) is bolted between the support seats (2) on both sides and on the front and back sides. A sliding groove (301) is provided on one side of the test sliding seat (3). A connecting groove (302) is provided through the front of the test sliding seat (3). A test weight plate (4) is slidably connected in the sliding groove (301). A plurality of through holes (401) are provided through the outer surface of the test weight plate (4). A drive assembly (5) is provided on one side of the base (1). A first connecting assembly (6) is provided between the test weight plate (4) and the sliding groove (301). A second connecting assembly (7) is provided between the drive assembly (5) and the first connecting assembly (6).

2. A fatigue testing apparatus for weight plates of a fitness machine as recited in claim 1, wherein: A fixing rod (201) is provided between the support bases (2), and mounting bases (202) are fixedly connected to the bottom of the outer surface of the support bases (2) on both sides. The mounting bases (202) and the device base (1) are bolted together.

3. The fatigue testing device for weight plates of fitness equipment according to claim 2, characterized in that: The drive assembly (5) includes a drive seat (501) located on the top side of the device base (1) near the front and back. The drive seat (501) is equipped with a drive motor (502) on the inner side of each drive motor (502). The output end of the drive motor (502) is connected to an L-shaped connecting rod (503).

4. A fatigue testing apparatus for weight plates of a fitness machine as defined in claim 3, wherein: The other end of each L-shaped connecting rod (503) is provided with a connecting shaft (5031), and a first abutting block (5032) is sleeved on the connecting shaft (5031) and connected to the other end of the L-shaped connecting rod (503).

5. A fatigue testing apparatus for weight plates of exercise equipment as defined in claim 4, wherein: The first connecting component (6) includes a first connecting rod (601), and the other end of the first connecting rod (601) is provided with a threaded portion (602). One end of the first connecting rod (601) is connected to a second abutting block (603) for abutting against the outer wall of the connecting groove (302) on the back side. A third abutting block (6031) is sleeved on the first connecting rod (601). The third abutting block (6031) abuts against the outer wall of the test weight plate (4) and is located in the connecting groove (302).

6. The fatigue testing device for weight plates of fitness equipment according to claim 5, characterized in that: The threaded part (602) is threadedly connected to a first connecting sleeve (6021). One end of the first connecting sleeve (6021) abuts against the outer wall of the test weight plate (4). The other end of the first connecting sleeve (6021) is provided with a fourth abutting block (6022) abutting against the outer wall of the connecting groove (302). The other end of the fourth abutting block (6022) is provided with a second connecting sleeve (6023) connected to the second connecting assembly (7).

7. The fatigue testing device for weight plates of fitness equipment according to claim 6, characterized in that: The second connecting component (7) includes two movable blocks (701), a threaded rod (702) is provided between the two movable blocks (701), and a connecting rod (703) is provided between the threaded rods (702).

8. The fatigue testing device for weight plates of fitness equipment according to claim 7, characterized in that: The two movable blocks (701) are respectively fitted on the second connecting sleeve (6023) and the connecting shaft (5031), and the other end of the connecting shaft (5031) and the first connecting rod (601) are threaded with abutment nuts (8).

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