Counterweight adjustment device

Abstract

The utility model relates to a counterweight adjustment device in the field of fitness equipment, which includes: a base, on which two guide posts and a hydraulic buffer are arranged; a top fixed plate, which can be vertically penetrated in each guide post for reciprocal displacement; a plurality of counterweight blocks, each of which has a plug hole, two sets of holes and a through hole, each counterweight block can be movably penetrated in each guide post through each set of holes, and is located below the top fixed plate; and a lifting actuating component, which has an adjustment rod and an adjustment pin, the adjustment rod is fixed to the top fixed plate in an interlaced manner, and is provided with a plurality of adjustment holes arranged in an interval manner, each adjustment hole can be overlapped and aligned with the plug hole of each counterweight block, so that the adjustment pin can be selectively laterally penetrated in the plug hole of any counterweight block to be assembled in the corresponding adjustment hole, thereby adjusting the weight level. The utility model can use the hydraulic buffer to perform a deceleration buffering process on the extension structure of the adjustment rod when the adjustment rod falls, so as to avoid direct damage to the counterweight block and noise.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a weight adjustment device of fitness equipment, which can be used by a user to operate weight training. Background Art

[0002] With the continuous improvement of social and economic levels and the continuous improvement of people's living standards, more and more people have begun to pay attention to their own health issues. What follows is daily physical exercise, which can have a positive impact on human health, especially in preventing obesity and reshaping the body. The emergence of a variety of fitness equipment has greatly satisfied people's demand for indoor sports. Sports and fitness have become a fashion representative in today's life, and more and more gym results have been produced.

[0003] As is known to all, weight-bearing fitness equipment can replace the weight according to the amount of exercise required by each person, so as to achieve the purpose of weight training. The current mainstream way of replacing the weight is to add multiple weight blocks with a certain weight in a weight device, and connect a traction device so that a user can selectively move some or all of these weight blocks up and down. Under normal operating conditions, the user will apply force to pull these weight blocks upward, and then slowly lower them downward, and repeat this way.

[0004] This type of weight training fitness equipment often has the following three defects: First, users often choose weights that exceed their personal load, and use high weights and low repetitions to improve muscle strength in order to exercise muscles in specific areas. However, this action is often accompanied by exhaustion. At this time, the user may directly release the traction device, causing the weight block lifted upward to fall directly downward and hit the weight block below. Since the weight block is generally made of metal, the collision between metal and metal is likely to produce a loud noise, which also relatively increases the probability of damage to these weight blocks. Second, some users will use lightweight weights, and use low weights and high repetitions to improve muscle endurance. Since the weight has When the weight is too light, the user may choose to use too much weight, which may cause the user to unconsciously operate the traction device with a slightly larger amplitude and too fast reciprocating speed. When the user places part of the counterweight block on the counterweight block below to adjust the weight, the user may not pay attention to the principle of slow descent due to the weight being too light, and collide with the counterweight block below, making a certain degree of noise. This action may also cause damage to the counterweight block. The third type is that even under normal operating conditions, the user must slowly drop these counterweight blocks down and stack them on top of the counterweight block below. There will inevitably be noise caused by metal collision. Although it will not cause serious damage to these counterweight blocks immediately, it will still produce a certain degree of collision sound and affect the users in the surrounding environment. It can be understood from the above description that during the use of counterweight-type weight training fitness equipment, the vibration and noise pollution caused by the collision between the counterweight blocks will not only cause continuous impact damage to the equipment itself, but also cause great interference and impact on the surrounding environment and nearby users.

[0005] Based on the above-mentioned deficiencies, it is clear that there is a certain degree of room for improvement in weight-bearing weight training fitness equipment. Therefore, an innovative weight-bearing structure is needed to further optimize and improve the fitness equipment to overcome the various defects of this fitness equipment and solve the above-mentioned problems. Summary of the invention

[0006] In view of the above problems, the main purpose of the utility model is to provide a counterweight adjustment device that can slow down the speed of these counterweight blocks during the descent process, thereby greatly eliminating the noise generated by the collision between the counterweight blocks, so as to reduce the noise of the fitness equipment to the surrounding environment and effectively extend the service life of the counterweight blocks.

[0007] To achieve the above-mentioned purpose, the utility model provides a counterweight adjustment device, which can be set on a fitness equipment for weight training to adjust the weight required for weight training, and is characterized in that it includes: a base, on which two guide pillars and an oil pressure buffer are arranged; a top fixing plate, which is vertically penetrated through each of the guide pillars for reciprocating displacement; a plurality of counterweight blocks, each of which has a laterally arranged insertion hole, two sleeve holes that can be movably penetrated through each of the guide pillars and a through hole, and each of the counterweight blocks is located below the top fixing plate; a lifting actuating component, It has an adjusting rod and an adjusting pin, the adjusting rod is fixed to the top fixing plate in an interlaced manner, and is provided with a plurality of adjusting holes arranged in an interval manner, each of the adjusting holes can be aligned with each of the plug holes, so that the adjusting pin can be selectively inserted into the plug hole of any counterweight block to be assembled in the corresponding adjusting hole, thereby adjusting the weight level; wherein, a stopper is fixedly provided on one side of the adjusting rod, and a buffer pad is provided at one end of the stopper, when the adjusting rod falls, the buffer pad can slow down the falling speed of the adjusting rod by contacting the oil pressure buffer.

[0008] In the technical solution of the utility model described above, the adjusting rod has a first moving trajectory, the buffer pad has a second moving trajectory, and the first moving trajectory and the second moving trajectory are parallel and maintain a certain distance between them. At the same time, the hydraulic buffer is located on the path of the second moving trajectory.

[0009] The stopper is located at the extension of the left and right sides of the top fixed plate, and the corresponding number of the hydraulic buffers is 2, which are respectively located on the left and right sides above the base. When the adjusting rod descends, the hydraulic buffers located on the left and right sides above the base will contact each of the buffer pads to jointly slow down the descending speed of the adjusting rod.

[0010] The stopper is located at the bottom side of the adjusting rod. When the adjusting rod falls, the oil pressure buffer will contact the buffer pad to reduce the falling speed of the adjusting rod.

[0011] The adjustment rod includes a first side portion and a second side portion, the first side portion is provided with each of the adjustment holes, and the second side portion is symmetrically provided with multiple auxiliary adjustment holes according to the adjustment holes of the first side portion. At the same time, each of the counterweight blocks is laterally provided with a auxiliary socket, and the adjustment pin can be simultaneously passed through the socket and the corresponding auxiliary socket of any counterweight block to be assembled in the corresponding adjustment hole and the auxiliary adjustment hole, thereby adjusting the weight level.

[0012] The bottom end of each guide column is sleeved with a retaining ring.

[0013] The adjusting rod together with any of the counterweight blocks descends and applies pressure to the oil pressure buffer to form a compressed state. At this time, the oil pressure buffer has a compressed height, and the height difference between one end of the adjusting rod and the buffer pad is less than the compressed height.

[0014] A first side column and a second side column are vertically arranged on both sides of the base, and a cross column is horizontally arranged between the top ends of the first side column and the second side column; one end of the adjustment rod is connected to a traction device, and the other end of the traction device can movably pass through the cross column and be connected to the fitness equipment, so that it can be moved back and forth to achieve the purpose of weight training.

[0015] The through hole is compatible with the outer shape of the oil pressure buffer.

[0016] By adopting the above technical solution, when a user operates the fitness equipment to lower the counterweight block assembled on the adjusting rod, the stopper linked to the adjusting rod will also be lowered. At this time, the buffer pad arranged at one end of the stopper will also contact the oil pressure buffer located above the base, and the oil pressure buffer will perform speed reduction buffering treatment on the adjusting rod. As a result, the impact force generated by the falling of these counterweight blocks can be greatly absorbed, so as to achieve the effect of reducing vibration and noise.

[0017] The following utility model content is merely illustrative and is not intended to be limiting in any way. That is, the following description is provided to introduce the concepts and advantages of the technology described herein. Therefore, the following utility model content is neither intended to identify the necessary features of the claimed subject matter nor to be used to determine the scope of the claimed subject matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of the appearance of a preferred embodiment of the utility model;

[0019] Figure 2 It is a partial perspective stereogram of a preferred embodiment of the utility model in which a part of the counterweight block is pulled up and located at the lower counterweight block;

[0020] Figure 3 This is a schematic diagram of the assembly of the adjusting latch of a preferred embodiment of the utility model;

[0021] Figure 4 It is a partial perspective side view of a preferred embodiment of the utility model in operation in a pressing state;

[0022] Figure 5 It is a partial perspective side view of a preferred embodiment of the utility model operating in a compressed state;

[0023] Figure 6 This is a three-dimensional view of the appearance of another preferred embodiment of the utility model in the state of waiting for pressing;

[0024] Figure 7 It is a partial perspective stereogram of another preferred embodiment of the utility model in operation in a pressing state;

[0025] Figure 8 This is a schematic diagram of the assembly of the adjusting latch of another preferred embodiment of the utility model. DETAILED DESCRIPTION

[0026] See also Figure 1 to Figure 3 As shown, Figure 1 It is a three-dimensional appearance diagram of a preferred embodiment of the utility model. Figure 2 It is a partial perspective stereogram of a preferred embodiment of the utility model in which a portion of the counterweight block is pulled up and located below the counterweight block. Figure 3 The utility model is a schematic diagram of adjusting the bolt assembly of a preferred embodiment of the utility model. The utility model is a weight adjustment device that can be set on a fitness equipment used for weight training to adjust the weight required for weight training, which includes:

[0027] like Figure 1 and Figure 2 As shown, a base 10 has a first side column 11 and a second side column 12 disposed vertically on both sides thereof, a cross column 13 is disposed horizontally between the top ends of the first side column 11 and the second side column 12, and two mutually parallel guide columns 20 and a hydraulic buffer 30 are disposed vertically above the base 10, and a retaining ring 40 is sleeved on the bottom end of each of these guide columns 20. Among them, the oil pressure buffer 30 is internally configured with multiple oil channel tubes of different diameters (not shown in the figure). The oil channel tube with a larger diameter can generate smaller resistance, while the oil channel tube with a smaller diameter can generate larger resistance. It can be designed according to the resistance requirements of the actual test to generate the function of adaptive buffer pressure. Its basic principle is to use the change of oil pressure to control the movement speed of the moving parts. When the object is pressed toward the reboundable part of the oil pressure buffer 30, the oil in the hydraulic cylinder will pass through the oil channel tubes of different diameters, thereby generating different resistances or buffering effects inside the oil pressure buffer 30. The above-mentioned basic principles for adaptive oil pressure buffering are easily known to those with ordinary knowledge in the technical field based on the prior art before the application, and will not be elaborated here.

[0028] See also Figure 2As shown, a top fixing plate 50 has two through holes 51 penetrating in a vertical direction, so that the top fixing plate 50 can be vertically penetrated in these guide pillars 20 and limited in position, and a bushing 60 fixed to the through hole 50 is respectively provided along the outer side of these guide pillars 20, and these bushings 60 can move back and forth together with the top fixing plate 50. At the same time, these bushings 60 can not only maintain a certain distance between the inner edges of these through holes 51 and these guide pillars 20 to protect these guide pillars 20 from being scratched and worn by the inner edges of these through holes 51, thereby extending the service life of these guide pillars 20 and maintaining their smooth operation, but also reduce the generation of noise.

[0029] See also Figure 3 As shown, a plurality of counterweight blocks 70 respectively have a top surface 71 which is flat, a bottom surface 72 which can be fitted with the top surface 71, a first side surface 73 and a second side surface 74 relative to the first side surface 73. These counterweight blocks 70 can be stacked on each other and are located below the top fixed plate 50. The first side surface 73 and the second side surface 74 are each provided with a plug hole 75 which can be mutually aligned and laterally penetrated, and two sets of holes 76 and a through hole 77 are provided from the top surface 71 to the bottom surface 72. These sets of holes 76 can be movably penetrated in these guide pillars 20. In the present embodiment, the through hole 77 is located in the center of these counterweight blocks 70 and can be compatible with the shape of the hydraulic buffer 20.

[0030] See also Figure 2 and Figure 3 As shown, a lifting actuating component 80 has an adjusting rod 81 and an adjusting pin 82, and the adjusting rod 81 is fixed to the top fixing plate 50 in an interlaced manner, and is provided with a plurality of adjusting holes 81a arranged in a spaced manner, and these adjusting holes 81a can coincide with these sockets 75, so that the adjusting pin 82 can be selectively inserted into the socket 75 of any counterweight block 70 to be assembled in the corresponding adjusting hole 81a, thereby adjusting the weight level of the counterweight adjustment device; wherein, a stopper 83 is fixedly provided on one side of the adjusting rod 81, and the adjusting rod 81 has a first moving trajectory A, and a buffer pad 84 with a second moving trajectory B is provided at one end of the stopper 83, and the first moving trajectory A and the second moving trajectory B are parallel and maintain a certain distance between them, and at the same time, the oil pressure buffer 30 is located on the path of the second moving trajectory B.

[0031] In this embodiment, one end of the adjustment rod 81 is connected to a traction device 90, and the other end of the traction device 90 is movably arranged in the horizontal column 13 and connected to the fitness equipment (not shown in the figure), so that a user can drive the adjustment rod 81 and the top fixing plate 50 to reciprocate in the vertical direction by operating the fitness equipment in an optional manner. When the adjustment rod 81 falls downward, the buffer pad 84 can contact the oil pressure buffer 30 to reduce the falling speed of the adjustment rod 81.

[0032] The above is an overview of the basic structure and component assembly process of a preferred embodiment of the utility model, and the principle of the effect it can achieve is described as follows:

[0033] When the user is on the fitness equipment (not shown in the picture), he can first select the number or weight of the counterweight blocks 70 suitable for his weight training according to his own movement status, or evaluate the subsequent fitness usage status and then increase or decrease the number of counterweight blocks 70, so that the weight adjustment device can be quickly adjusted according to the user's needs.

[0034] See also Figures 3 to 5 As shown, the principle of the weight adjustment is that during use, the adjustment pin 82 is first inserted sideways into the pre-set insertion hole 75 of the first side 73, and then aligned through the rear adjustment hole 81a, and then passed through the adjustment rod 81 and inserted into the insertion hole 75 of the second side 74 to complete the assembly and connection. At this time, the top fixing plate 50, the adjustment rod 81 and the weight blocks 70 are fixedly connected to each other, and the user can pull the traction device 90 fixed to the adjustment rod 81 to link the selected weight block 70 to move upward, thereby achieving the lifting effect in weight training.

[0035] Next, if the user wishes to release the muscle tension caused by the currently applied force, he only needs to relax the action of lowering the counterweights 70. At this time, the adjustment rod and the buffer pad will move downward along the first moving track and the second moving track respectively. Since the hydraulic buffer is arranged on the base and located on the path of the second moving track B, the hydraulic buffer located below can buffer the buffer pad falling from above to slow down the descending speed of the counterweights 70. Through such a design, the vibration amplitude caused by collision can be reduced, the noise emitted by the counterweights 70 can be effectively reduced, and the damage of the counterweights 70 can be prevented.

[0036] In addition, when installing the hydraulic buffer 30, care must be taken to avoid damaging the base 10 due to the size of the installation. In the initial state, when the user does not operate the fitness equipment, the adjustment pin 82 is usually placed in a placement hole 52 of the top fixing plate 50. At this time, only the adjustment rod 81 and the weight of the top fixing plate 50 exert pressure on the hydraulic buffer 30 (such as Figure 1 As shown in FIG. 1 , the oil pressure buffer 30 has an initial height. When the user selects to install any counterweight block 70 to perform an ascending action, the oil pressure buffer 30 is in a relaxed state ( Figure 4 As shown in FIG. 1 , the height of the oil pressure buffer 30 is a waiting height UH. When the user lowers the selected counterweight 70, the oil pressure buffer 30 is pressed into a compressed state ( Figure 5As shown), at this time, the height of the oil pressure buffer 30 is a compression height CH.

[0037] In this embodiment, the oil pressure buffer 30 has the function of adaptive buffer pressure, and can be automatically adjusted under different pressure conditions to provide a consistent rebound amount or rebound height. In other words, regardless of the load size of the counterweight block 70, the oil pressure buffer 30 will adjust its own damping force to ensure the consistency of the rebound amount or rebound height. Therefore, it can be understood that when these counterweight blocks 70 contact the oil pressure buffer 30 for a period of time, the initial height is approximately equal to the compression height CH. In addition, it is necessary to set the height difference between one end of the adjustment rod 81 and the buffer pad 84 to be less than the compression height CH to avoid the adjustment rod 81 exceeding the size limit during the descent process, thereby causing the adjustment rod 81 to damage the base 10.

[0038] See also Figure 6 As shown, in the present embodiment, the stopper 83 is located at the extension of the left and right sides of the top fixing plate 50. Since the top fixing plate 50 is fixed on the adjusting rod 81, it can be further understood that the top fixing plate 50 and the stopper 83 are equivalent to the extension structure of the adjusting rod 81 to the outside. Similarly, a buffer pad 84 is provided at one end of the stopper 83, and two oil pressure buffers 30 are arranged below these buffer pads 84, which are respectively located on the left and right sides above the base 10, and a fixing buckle 14 is respectively provided on the inner side of the first side column 11 and the second side column 12 to assist in stabilizing these oil pressure buffers 30. When the adjusting rod 81 falls, the oil pressure buffers 30 located on the left and right sides above the base 20 will contact these buffer pads 84, thereby generating a buffering effect, so as to slow down the falling speed of the adjusting rod 81. This design helps to reduce the vibration of the counterweight adjustment device and provide safety and comfort for the user.

[0039] See also Figure 7 and Figure 8As shown, in this embodiment, the adjustment rod 81 includes a first side portion 81b located on the left side and a second side portion 81c located on the right side, and the stopper portion 83 is located at the bottom side between the first side portion 81b and the second side portion 81c, and the first side portion 81b is provided with these adjustment holes 81a, and the second side portion 81c is symmetrically provided with a plurality of auxiliary adjustment holes 81d according to the adjustment holes 81a of the first side portion 81b. Similarly, the first side 73 and the second side 74 corresponding to these counterweights 70 are each provided with an auxiliary plug hole 75a that can be mutually aligned and laterally penetrated. In addition, the shape of one side of the adjustment pin 82 is similar to the appearance of a double-rod plug, so that the adjustment pin 82 can be simultaneously penetrated in the plug hole 75 and the corresponding auxiliary plug hole 75a of any counterweight 70 to be assembled in the corresponding adjustment hole 81a and the auxiliary adjustment hole 81d, thereby achieving the adjustment of the weight level. In this design, a buffer pad 84 is provided on one side of the stopper 83. When the adjustment rod 81 falls, the oil pressure buffer 30 will contact the buffer pad 95 to reduce the falling speed of the adjustment rod 81. Such a design helps to improve the stability and safety of the counterweight adjustment device and provide a more flexible weight adjustment function.

[0040] In summary, the design of the utility model is a counterweight adjustment device with a hydraulic buffer function, and its main feature is that a hydraulic buffer 30 is arranged between these counterweights 70 and the base 10, and a buffer treatment is performed on the adjustment rod 81 or its extended structure. The structures of different types of stoppers 83 can be explained through the above-mentioned various embodiments, and the stoppers 83 are mainly fixed structures formed by the extension of the main body of the adjustment rod 81, and are not selectively replaceable adjustment structures like these counterweights 70. The hydraulic buffer 30 slows down the falling speed of the counterweights 70 assembled on the adjustment rod 81 by impacting the contact buffer pad 84, greatly absorbing the impact force generated when these counterweights 70 descend, so as to achieve the effect of reducing vibration and noise, and significantly improve the noisy environment that gyms or personal exercise rooms have long faced, while extending the service life of these counterweights 70.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the creative spirit and patent protection scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A weight adjustment device, which can be arranged on a fitness equipment for weight training to adjust the weight required for weight training, characterized in that Contains: A base, on which two guide pillars and a hydraulic buffer are arranged; A top fixed plate, which is vertically inserted through each of the guide pillars for reciprocal movement; A plurality of counterweight blocks, each of which has a laterally arranged insertion hole, two sleeve holes movably arranged in each of the guide pillars, and a through hole, and each of the counterweight blocks is located below the top fixed plate; A lifting actuating member, comprising an adjusting rod and an adjusting latch, wherein the adjusting rod is fixed to the top fixing plate in an interlaced manner and is provided with a plurality of adjusting holes arranged in an interval manner, each of the adjusting holes can be aligned with each of the plug holes, so that the adjusting latch can be selectively inserted into the plug hole of any counterweight block to be assembled in the corresponding adjusting hole, thereby adjusting the weight level; A stopper is fixedly provided on one side of the adjusting rod, and a buffer pad is provided at one end of the stopper. When the adjusting rod falls, the buffer pad can slow down the falling speed of the adjusting rod by contacting the oil pressure buffer.

2. The counterweight adjustment device according to claim 1, characterized in that: The adjusting rod has a first moving track, the buffer pad has a second moving track, and the first moving track and the second moving track are parallel and keep a certain distance between them. Meanwhile, the oil pressure buffer is located on the path of the second moving track.

3. The counterweight adjustment device according to claim 1, characterized in that: The stopper is located at the extension of the left and right sides of the top fixed plate, and the corresponding number of the hydraulic buffers is 2, which are respectively located on the left and right sides above the base. When the adjusting rod descends, the hydraulic buffers located on the left and right sides above the base will contact each of the buffer pads to jointly slow down the descending speed of the adjusting rod.

4. The counterweight adjustment device according to claim 1, characterized in that: The stopper is located at the bottom side of the adjusting rod. When the adjusting rod falls, the oil pressure buffer will contact the buffer pad to reduce the falling speed of the adjusting rod.

5. The weight adjustment device according to claim 1, characterized in that: The adjustment rod includes a first side portion and a second side portion, the first side portion is provided with each of the adjustment holes, and the second side portion is symmetrically provided with multiple auxiliary adjustment holes according to the adjustment holes of the first side portion. At the same time, each of the counterweight blocks is laterally provided with a auxiliary socket, and the adjustment pin can be simultaneously passed through the socket and the corresponding auxiliary socket of any counterweight block to be assembled in the corresponding adjustment hole and the auxiliary adjustment hole, thereby adjusting the weight level.

6. The counterweight adjustment device according to claim 1, characterized in that: The bottom end of each guide column is sleeved with a retaining ring.

7. The counterweight adjustment device according to claim 1, characterized in that: The adjusting rod together with any of the counterweight blocks descends and applies pressure to the oil pressure buffer to form a compressed state. At this time, the oil pressure buffer has a compressed height, and the height difference between one end of the adjusting rod and the buffer pad is less than the compressed height.

8. The counterweight adjustment device according to claim 3, characterized in that: A first side column and a second side column are vertically arranged on both sides of the base, and a cross column is horizontally arranged between the top ends of the first side column and the second side column; one end of the adjustment rod is connected to a traction device, and the other end of the traction device can movably pass through the cross column and be connected to the fitness equipment, so that it can be moved back and forth to achieve the purpose of weight training.

9. The weight adjustment device according to claim 1, characterized in that: The through hole is compatible with the outer shape of the oil pressure buffer.

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