Sliding guide structure on Smith machine

Abstract

The utility model discloses a sliding guide structure on a Smith machine, which comprises a main body frame, guide shafts in the vertical direction are symmetrically arranged on the main body frame, sliding components are arranged on the two guide shafts in a sliding manner, and a weight supporting rod is arranged between the two sliding components; the sliding assembly comprises a sliding sleeve, and the two ends of the interior of the sliding sleeve are each provided with a linear bearing through a limiting assembly. The two linear bearings are arranged on the circumferential outer sides of the corresponding guide shafts in a sliding and sleeving mode. According to the sliding guide structure on the Smith machine, it is guaranteed that the sliding sleeve and the weight supporting rod smoothly move up and down in the height direction of the guide shaft in a reciprocating mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building equipment technical field especially, a kind of sliding guide structure on Smith machine. BACKGROUND

[0002] Smith machine is an apparatus that can be used to do deep squat, weight lifting, high-low pull, butterfly chest expansion, small bird, arm curl, chin-up and the like;Among them, the frame weight bar in Smith machine is used to hang counterweight disc at both ends, and the user carries out strength training by lifting the frame weight bar up and down, and the frame weight bar needs to be guaranteed the track of up and down movement by sliding guide assembly during up and down movement.

[0003] The sliding guide structure on general Smith machine, the sliding sleeve in it is installed on guide shaft by plastic sliding bushing, and after long time use, wear phenomenon occurs, resulting in the problems of up and down movement of frame weight bar being jammed and not smooth;Therefore, the present application provides a kind of sliding guide structure on Smith machine, which is assembled by linear bearing and guide shaft to ensure the smoothness of up and down movement of frame weight bar. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a kind of sliding guide structure on Smith machine.

[0005] The utility model provides a kind of sliding guide structure on Smith machine, it is characterized in that, the guide shaft in vertical direction is symmetrically provided on the main body frame, two sliding assemblies are slidably arranged on the guide shaft, and frame weight bar is arranged between two sliding assemblies;The sliding assembly includes sliding sleeve, and one linear bearing is arranged at both ends in the sliding sleeve by limiting component respectively;Two linear bearings are slidably set on the circumferential outer side of corresponding guide shaft.

[0006] Further, the limiting component includes annular limiting boss, annular groove and hole snap ring;Among them,

[0007] The annular limiting boss is fixedly arranged in the interior of the sliding sleeve;

[0008] The annular groove is symmetrically arranged on the circumferential wall surface of both ends in the sliding sleeve interior;

[0009] The hole snap ring is embedded in the interior of corresponding annular groove;

[0010] The annular limiting boss, annular groove and sliding sleeve are coaxially arranged.

[0011] Further, the linear bearing is arranged between the hole snap ring and the annular limiting boss, to ensure that it does not occur axial movement.

[0012] Further, the fixed horizontal pipe is arranged on the vertical beam of the main frame, and the bottom end of the guide shaft is fixed on the fixed horizontal pipe.

[0013] Further, the damping assembly and the security frame assembly are arranged in sequence below the sliding assembly on the guide shaft, so as to buffer and protect the falling frame weight rod.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The sliding guide structure on the Smith machine of the utility model realizes smooth sliding of the sliding sleeve on the guide shaft through the linear bearing arranged on the guide shaft, thereby ensuring smooth movement of the frame weight rod, improving the experience performance of the user, avoiding the drawbacks of long-time sliding wear of the bushing in the traditional design, prolonging the service life of the equipment, and reducing the frequency of regular replacement of parts due to wear of the bushing.

[0016] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model.

[0017] Other features of the utility model will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects and advantages of the utility model will become more apparent by reading the following detailed description of the non-limiting embodiments made with reference to the accompanying drawings:

[0019] Fig. 1 Structure schematic view for sliding guide structure assembled on main frame;

[0020] Fig. 2 Structure schematic view for sliding guide structure;

[0021] Fig. 3 Structure schematic view for cross section of sliding guide structure;

[0022] Fig. 4 Exploded view for sliding assembly;

[0023] Fig. 5 Cross-sectional view for sliding sleeve;

[0024] The figure label: 1, main body frame; 2, guide shaft; 3, sliding assembly; 31, sliding sleeve; 32, annular limiting boss; 33, annular groove; 34, hole snap ring; 35, linear bearing; 4, sliding frame plate; 5, frame weight rod; 6, fixed cross pipe; 7, damping assembly; 8, security frame assembly. DETAILED DESCRIPTION

[0025] The utility model will be made further detailed explanation in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the related utility model, and not limited to the utility model. In addition, it needs to be explained that only the parts related to the utility model are shown in the drawings for the convenience of description.

[0026] It needs to be explained that the examples in the utility model and the features in the examples can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with examples.

[0027] Please refer to Figs. 1-5 The embodiment of the utility model provides a sliding guide structure on Smith machine, and the smooth up-down movement of guide shaft is realized through the sliding guide structure.

[0028] Specifically, it includes main body frame 1, and the guide shaft 2 in vertical direction is symmetrically arranged on the main body frame 1, the sliding assembly 3 is slidably arranged on the two guide shafts 2, the frame weight rod 5 is fixedly arranged between the two sliding assemblies 3, and the counterweight disc (not shown in the figure) is arranged at the both ends of the frame weight rod 5 for strength training.

[0029] The sliding assembly 3 includes the sliding sleeve 31, and the both ends of the sliding sleeve 31 are provided with one linear bearing 35 through the limiting component respectively; the two linear bearings 35 are slidably sleeved on the circumferential outer side of the corresponding guide shaft 2, for realizing the up-down reciprocating movement of the sliding sleeve 31 and the frame weight rod 5 fixed on the sliding sleeve 31 along the height direction of the guide shaft 2.

[0030] In a preferred embodiment, the limiting component includes the annular limiting boss 32, the annular groove 33 and the hole snap ring 34; wherein,

[0031] The annular limiting boss 32 is fixedly arranged in the inside of the sliding sleeve 31.

[0032] The annular groove 33 is symmetrically arranged on the circumferential wall surface of the both ends of the sliding sleeve 31, and the two annular grooves 33 are arranged on the both sides of the annular limiting boss 32.

[0033] The hole snap ring 34 is embedded in the inside of the corresponding annular groove 33.

[0034] The annular limiting boss 32, the annular groove 33 and the sliding sleeve 31 are coaxially arranged.

[0035] The linear bearing 35 is arranged between the hole clamping ring 34 and the annular limiting boss 32, that is, the linear bearing 35 is arranged between the hole clamping ring 34 and the annular limiting boss 32, and is axially limited, so as to prevent axial movement.

[0036] In a preferred embodiment, the fixed horizontal pipe 6 is arranged on the vertical beam of the main frame 1, and the bottom end of the guide shaft 2 is arranged on the fixed horizontal pipe 6.

[0037] In a preferred embodiment, the shock absorbing assembly 7 and the safety frame assembly 8 are arranged in sequence below the sliding assembly 3 on the guide shaft 2, so as to buffer and protect the falling frame weight rod 5.

[0038] The shock absorbing assembly 7 includes a rubber shock pad and a shock spring arranged on the circumferential outer side of the guide shaft 2, and is used for buffering the falling frame weight rod 5.

[0039] The safety frame assembly 8 includes a safety frame sleeve arranged in sliding mode on the circumferential outer side of the guide shaft 2, and the safety frame sleeve is arranged below the rubber shock pad.

[0040] The two sliding sleeves 31 are respectively provided with a sliding frame plate 4, and the frame weight rod 5 is fixed on the two sliding frame plates 4, so as to realize the up-down reciprocating movement of the frame weight rod 5 along the height direction of the guide shaft 2.

[0041] Working principle of the utility model:

[0042] The sliding sleeve 31 is arranged on the circumferential outer side of the guide shaft 2, and then the two linear bearings 35 are respectively arranged at the two ends in the sliding sleeve 31 and located on the two sides of the annular limiting boss 32.

[0043] The problem that the frame weight rod is not smoothly moved up and down due to the long-time sliding wear of the sliding bushing in the traditional design is avoided, and the problem that the sliding bushing needs to be regularly replaced due to long-time sliding wear is also avoided.

[0044] In the description of the present specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] In the description of the present specification, the description of the terms "one embodiment", "some embodiments" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A slide guide structure on a Smith machine, comprising a main frame, characterized in that, The main body frame is symmetrically provided with guide shafts in the vertical direction, two sliding assemblies are slidably arranged on the guide shafts, and a rack weight rod is arranged between the two sliding assemblies; the sliding assembly comprises a sliding sleeve, and two linear bearings are arranged at both ends of the sliding sleeve through a limiting assembly.

2. The sliding guide structure on a Smith machine of claim 1, wherein, The limiting assembly comprises an annular limiting boss, an annular groove and a hole clamping ring; wherein, The annular limiting boss is fixedly arranged in the sliding sleeve; The annular groove is symmetrically arranged on the circumferential wall at both ends of the sliding sleeve; The hole clamping ring is embedded in the corresponding annular groove; The annular limiting boss, the annular groove and the sliding sleeve are coaxially arranged.

3. The sliding guide structure on a Smith machine of claim 2, wherein, The linear bearing is arranged between the hole clamping ring and the annular limiting boss to prevent axial movement.

4. The sliding guide structure on a Smith machine of claim 1, wherein, A fixed horizontal pipe is fixedly arranged on the vertical beam of the main body frame, and the bottom end of the guide shaft is fixedly arranged on the fixed horizontal pipe; the top end of the guide shaft is fixedly arranged on the top beam of the main body frame through a bolt assembly.

5. The sliding guide structure on a Smith machine of claim 1, wherein, A damping assembly and a safety frame assembly are sequentially and slidably arranged below the sliding assembly on the guide shaft to buffer and protect the falling rack weight rod.

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