Assembly capable of adjusting barbell rod hanging height and fitness equipment

Abstract

The utility model discloses an assembly capable of adjusting the hanging height of a barbell rod and fitness equipment. The assembly comprises a barbell guide rod, a sliding piece, a barbell rod, a mounting column and a hanging bolt assembly. The barbell rod is coupled with the barbell guide rod through a sliding piece, and the barbell rod is connected with two hooks; a plurality of positioning holes are formed in the mounting column; the hanging bolt assembly comprises a U-shaped supporting piece, a positioning part combined with the U-shaped supporting piece, an auxiliary supporting part and a hanging bolt. The U-shaped supporting piece is operably mounted at different heights of the mounting column through the matching of the positioning part and the positioning hole and the matching of the auxiliary supporting part and the mounting column; the barbell rod is rotated to enable the hook and the hanging bolt to realize hook-bolt connection, so that the barbell rod is hung at a fixed position. The fitness equipment is composed of a frame, the assembly and a balance weight assembly, and the balance weight assembly is used for flexibly adjusting training loads. According to the structure, the manufacturing cost of the fitness equipment is reduced, a user can conveniently and independently use the fitness equipment, and meanwhile use flexibility is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of body -building apparatus, concretely relates to a component of adjustable barbell rod hanging height and body -building apparatus. BACKGROUND

[0002] Smith machine is a common body -building apparatus, it includes a barbell that is composed of barbell rod and the weight that can be operated to be coupled to it, its feature is that barbell is through barbell rod and can be operated to be connected on two guide rods. In this way, user can obtain the auxiliary when exercising, need not to be hard to keep barbell balance. This design is especially suitable for the person who exercises alone. In addition, the Smith machine has the hanging bolt that is arranged at interval on the vertical support of its frame, can be connected with the barbell rod hook bolt, lets user hang the barbell rod at different height, conveniently safely in various exercise actions in and out apparatus.

[0003] One problem of traditional Smith machine and other similar type body -building apparatus is that all heights of hanging bolt are fixed in the way of welding or screw locking on separate vertical support, this occupies space and increases manufacturing cost. In addition, some traditional body -building apparatus do not have the balance weight that can be coupled to barbell rod for adjusting the balance of movement load. SUMMARY

[0004] The utility model is aimed at providing a component that uses barbell guide rod and realizes the hanging of barbell rod at different height with less hanging bolt, and a body -building apparatus comprising the component.

[0005] To address the problems existing in the background art, this utility model provides an adjustable barbell hanging height assembly, comprising: two barbell guide rods, the barbell guide rods being spaced apart and arranged parallel to each other; each barbell guide rod being provided with a sliding member that can be operably coupled to it; the sliding member being operably coupled to the barbell bar, the barbell bar being able to rotate around its own long axis; the barbell bar being connected to a first hook and a second hook; characterized in that it further comprises a first mounting post and a second mounting post, the first and second mounting posts being parallel to each other, at a certain angle to the ground and spaced apart; the first and second mounting posts having a plurality of positioning holes arranged linearly at intervals along their long axes; the barbell guide rods being arranged parallel to the first and second mounting posts respectively, the two barbell guide rods being located on the same side of the plane formed by the first and second mounting posts; and a hanging bolt assembly, the hanging bolt assembly including a U-shaped support member, the long axis of the U-shaped support member being parallel to the first and second mounting posts. The barbell guide bar is parallel. The U-shaped support is composed of a first wall, a second wall, and a third wall that are fixedly connected or integrally formed. The first wall and the third wall are both perpendicular to the plane formed by the first and second mounting posts and are respectively connected to the opposite ends of the second wall. The plane formed by the first and second mounting posts and the first and third walls are located on both sides of the second wall. The positioning hole is provided on the cylindrical surface of the first and second mounting posts that mate with the second wall. The hook assembly is operably positioned on the first and second mounting posts respectively by the positioning component connected to the second wall and the positioning hole. The hook assembly also includes a hook connected to the first wall and the third wall. A part of the hook extends vertically outward from the outer surface of the first wall. Rotating the barbell bar can make the first and second hooks hook-and-bolt connected to the hook. A limiting structure is provided to restrict the swing of the U-shaped support in the direction pointed to by the end of the hook close to the third wall.

[0006] The bottom ends of the first and second mounting posts and the barbell guide rod of the aforementioned components can be fixedly connected to the ground or to the near-ground portion of a frame made of a rigid material, such as, but not limited to, metal, while the top ends can be connected to a wall, ceiling, or the far-ground portion of the aforementioned frame. The first and second mounting posts and the barbell guide rod can be perpendicular to the ground for squat training, or they can be inclined for training muscle groups different from those involved in squat training. The connection between the latch and the first and third walls can be a fixed connection such as welding or riveting, or a detachable connection such as a threaded connection, snap-fit ​​connection, or fasteners such as expansion tubes or spring clips.

[0007] The function of the positioning component is to operably position the latch assembly at a specific height on the first and second mounting posts according to the user's needs. The connection between the positioning component and the second wall can be fixed, such as by welding or riveting; it can also be detachable, such as by bolting; the positioning component can also be integrally formed with the second wall. The shape of the positioning component can be a column inserted into a positioning hole or a barb extending towards the ground, positioning the latch assembly on the first and second mounting posts.

[0008] When the barbell is hung on the latch, the latch is under stress. If the U-shaped support is not restricted from swinging in the direction pointed to by the end of the latch near the third wall, the end of the latch near the first wall will droop, creating a risk of the barbell slipping off the latch. Therefore, it is necessary to set a limiting structure to restrict the swinging of the U-shaped support in the direction pointed to by the end of the latch near the third wall. There are various implementations of the limiting structure. The limiting structure can refer to a positioning component of a certain shape and a positioning hole that mates with it. For example, the positioning component can be a square or multi-faceted column, or a hook-shaped protrusion with a certain width extending downwards, or a bolt that passes through the second wall and is threaded into the positioning hole. In the above implementations, the structure of the positioning hole matches the positioning component. By restricting the rotation of the positioning component within the positioning hole through the cooperation of the positioning component and the positioning hole, the swinging of the U-shaped support is restricted. Alternatively, it can refer to a structure connected to the second wall and along the long axis of the first and second mounting posts and the positioning part. The limiting protrusions arranged vertically on the component are inserted into the positioning hole simultaneously with the positioning protrusions. Since the parts of the limiting protrusions and the positioning components connected to the second wall are on a straight line parallel to the long axis of the first and second mounting posts, the limiting protrusions can restrict the swinging of the U-shaped support relative to the first and second mounting posts. The limiting structure can also be a component connected to the U-shaped support, which prevents the U-shaped support from swinging in the direction pointed to by the end of the hook closer to the third wall by the positional resistance with the first and second mounting posts. The limiting structure can also be a fastener such as a clamp or jig connecting the U-shaped support and the first and second mounting posts.

[0009] By adopting the above technical solution, it is not necessary to install fixed hooks at intervals on the first and second mounting columns. Users can adjust the position of the hook assembly on the first and second mounting columns according to their own training plan, thereby saving materials used in the manufacture of fitness equipment and increasing the user's exercise space.

[0010] Preferably, the limiting structure is a limiting protrusion connected to the second wall and inserted into the positioning hole; the limiting protrusion is arranged vertically along the long axis of the first and second mounting posts and the positioning component.

[0011] By adopting the above technical solution, when the latch assembly is positioned on the first and second mounting posts, the connection points of the limiting protrusion and the positioning component with the second wall are on a straight line parallel to the long axis of the first and second mounting posts. The limiting protrusion restricts the swing of the U-shaped support relative to the first and second mounting posts. The latch assembly including the limiting protrusion has a compact structure and is easy to install.

[0012] Preferably, the positioning hole is a channel perpendicular to the long axis of the first and second mounting posts, and the positioning component is a cylindrical positioning bolt that extends from the second wall into the positioning hole perpendicular to the second wall. The limiting structure is an auxiliary support portion that is fixedly connected to or integrally formed with the U-shaped support member. The auxiliary support portion and the first and third walls are located on opposite sides of the second wall. The auxiliary support portion extends from the second wall along the surface of the first and second mounting posts to limit the swing of the U-shaped support member in the direction pointed to by the end of the bolt near the third wall.

[0013] Regardless of where the auxiliary support extends from the second wall, and regardless of the shape of the first and second mounting posts (e.g., cylindrical or square), the fit between the auxiliary support and the surfaces of the first and second mounting posts must limit the swinging of the U-shaped support towards the end of the hook closest to the third wall caused by the force applied to the hook, thereby preventing the hook from tilting and avoiding the first and second hooks from slipping off the hook. By adopting the above technical solution, the fit between the positioning component and the positioning hole is not required to prevent the U-shaped support from swinging, providing more technical options for simplifying the fit between the positioning component and the positioning hole.

[0014] Preferably, the auxiliary support portion is integrally formed with the U-shaped support member; the first and second mounting posts are rectangular posts; the auxiliary support portion extends perpendicularly to the second wall at the junction of the second wall and the first wall, and the auxiliary support portion is in contact with the cylindrical surface of the first and second mounting posts pointed to by the end of the hook near the first wall.

[0015] By adopting the above technical solution, the integral molding of the auxiliary support and the U-shaped support has better mechanical properties compared with welding, bonding, riveting and other methods. The auxiliary support extends from the junction of the first wall and the second wall in a manner perpendicular to the second wall, so that the auxiliary support does not need to wrap around the first and second mounting posts, but only cooperates with one cylindrical surface of the first and second mounting posts. This can achieve the effect of restricting the swing of the U-shaped support in the direction pointed to by the end of the hook near the third wall. On the other hand, since the first and second mounting posts are rectangular, the auxiliary support that cooperates with the cylindrical surface of the first and second mounting posts has a regular shape, which makes the structure of the auxiliary support simple and easy to manufacture. The close contact between the auxiliary support and the cylindrical surface of the first and second mounting posts can further prevent the U-shaped support from wobbling slightly after the barbell is hung on the hook.

[0016] Preferably, the first and second mounting posts are both perpendicular to the ground, and the positioning hole penetrates the column bodies of the first and second mounting posts; the positioning bolt is a cylinder that is fixedly connected to the second wall or integrally formed, and its length can penetrate the positioning hole; the auxiliary support part includes an integrally formed auxiliary support part first section and auxiliary support part second section; the auxiliary support part first section is an extension of the first wall, and the auxiliary support part first section is in contact with the column surface of the first and second mounting posts pointed to by the end of the bolt near the first wall; the auxiliary support part second section is perpendicular to the auxiliary support part first section and parallel to the second wall; the upper edges of the auxiliary support part first section and the auxiliary support part second section are lower than the connection between the positioning bolt and the second wall; the auxiliary support part and the second wall form a rectangular cavity with one side open, and the cavity accommodates a portion of the column body of the first and second mounting posts when the bolt assembly is positioned on the first and second mounting posts; there are multiple bolts arranged linearly at intervals in the vertical direction.

[0017] By adopting the above technical solution, the cavity formed by the auxiliary support and the second wall is a rectangle with one open side. This cavity not only restricts the U-shaped support from swinging in the direction pointed to by the end of the hook near the third wall through the first section of the auxiliary support, but also restricts the separation of the U-shaped support from the first and second mounting posts in the horizontal direction through the second section of the auxiliary support, thus making the U-shaped support more firmly connected to the first and second mounting posts. When installing the hook assembly onto the first and second mounting posts, the user first holds the U-shaped support parallel to the ground, then aligns the positioning pin with the positioning hole, fully inserts it into the first and second mounting posts, and rotates the U-shaped support around the positioning pin as an axis, so that part of the length of the first and second mounting posts is placed into the cavity formed by the auxiliary support and the second wall, thus providing the user with a more convenient user experience. Setting multiple hooks provides users with multiple options for hanging barbells within a certain height range during training, enhancing the user experience.

[0018] This utility model also provides a fitness device, which includes an adjustable barbell hanging height assembly and a frame as described above; the frame has multiple vertical support components and multiple horizontal support components, which are operably connected to define a training area; the first and second mounting columns and the barbell guide rod all extend from the horizontal support component located at the bottom of the frame to the horizontal support component located at the top of the frame.

[0019] By adopting the above technical solution, installing the adjustable barbell hanging height component on the frame facilitates the realization of more fitness training functions; users can also move the position of the fitness equipment as needed; the detachable fitness equipment also facilitates packaging and transportation.

[0020] Preferably, the vertical support component is perpendicular to the ground; the positioning holes are located from the bottom to the top of the first and second mounting columns, thereby achieving adjustment of the barbell hanging height within the maximum height range and a more aesthetically pleasing effect.

[0021] Preferably, the fitness equipment further includes a weight assembly, which includes a weight, a cable, and a pulley. A first end of the cable is coupled to the weight, and a second end of the cable is coupled to the barbell bar via the pulley. The pulley is mounted on the transverse support member located at the top of the frame.

[0022] By adopting the above technical solution, the counterweight acts as a balance for the barbell bar and any operable weight coupled to it, which can reduce the force required to move the barbell bar, thereby allowing for more precise adjustment of the training load.

[0023] Preferably, the counterweight assembly further includes a load-bearing component, one end of which supports the counterweight, and the other end of which is connected to the first end of the cable.

[0024] By adopting the above technical solution, the cable couples the counterweight through the load-bearing component, making it more convenient for users to add, remove or replace the counterweight.

[0025] Preferably, there are two pulleys, which makes the movement trajectory of the cable more stable.

[0026] In summary, the present invention adopts the above-described technical solution and includes at least one of the following beneficial technical effects:

[0027] 1. It reduces the number of hooks that need to be installed, saving materials;

[0028] 2. Conveniently adjustable barbell hanging height;

[0029] 3. The compact structure increases the space for movement;

[0030] 4. Allows users of fitness equipment to adjust and train independently. Attached Figure Description

[0031] Figure 1 It is a three-dimensional assembly drawing of the top of the barbell guide rod 20 and the transverse support component 14;

[0032] Figure 2 This is a three-dimensional structural diagram of the latch assembly 30;

[0033] Figure 3 It is a three-dimensional assembly drawing of the first mounting post 5, the second mounting post 6, and the hanging bolt assembly 30;

[0034] Figure 4 This is a 3D structural diagram of fitness equipment 100.

[0035] Explanation of reference numerals in the attached figures:

[0036] Fitness equipment 100, training area 2, first mounting post 5, second mounting post 6, bottom horizontal support assembly 8, top horizontal support assembly 9, frame 10, vertical support component 12, positioning hole 13, horizontal support component 14, bracket component 16, barbell guide rod 20, barbell bar 21, guide rod connector 23, slider 24, first hook 27, second hook 28, guide rod connecting bracket 29, hanging bolt assembly 30, hanging bolt 31, U-shaped support component 32, first wall 33, second wall 34, third wall 35, wall cavity 37, auxiliary support part 40, first section of auxiliary support part 41, second section of auxiliary support part 42, cavity 44, positioning bolt 45, counterweight assembly 50, counterweight 51, load-bearing component 52, cable 53, pulley 54. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It should also be noted that all directional indicators (such as up, down, left, right, front, back, inside, outside) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicator will also change accordingly.

[0038] like Figure 4As shown, an embodiment of the present invention provides a fitness device 100 including a frame 10. The frame 10 is made of a durable, rigid material, such as, but not limited to, metal. The frame 10 includes a plurality of vertical support members 12, a plurality of horizontal support members 14, a first mounting post 5, and a second mounting post 6, which are coupled together to define a training area 2. In one embodiment, the vertical support members 12, the horizontal support members 14, the first mounting post 5, and the second mounting post 6 are made of square metal tubing and are coupled using suitable mechanical components and technically operable couplings, such as, but not limited to, a support member 16; the vertical support members 12, the first mounting post 5, and the second mounting post 6 are all perpendicular to the ground. It should be understood that within the scope of the invention, the frame 10 may have different sizes and may be configured to... Figure 4 The examples shown have different shapes.

[0039] like Figure 3 As shown, multiple through-holes 13 are formed on the first mounting post 5 and the second mounting post 6, and these through-holes 13 are arranged linearly at intervals along the first mounting post 5 and the second mounting post 6. The user can detachably install the latch assembly 30 onto the first mounting post 5 and the second mounting post 6 through the through-holes 13.

[0040] The specific installation method of the adjustable barbell hanging height component and frame 10 is described below.

[0041] like Figure 4 As shown, a barbell guide bar 20 is mounted on the frame 10. The barbell guide bar 20 is connected to the guide bar connecting bracket 29 via the guide bar connector 23 (see...). Figure 1 The barbell guide bar 20 is vertically fixed between the bottom transverse support assembly 8 and the top transverse support assembly 9, which are composed of transverse support members 14. The barbell guide bar 20 is operably coupled to the slider 24, which can be a simple sleeve connection, or a ball bearing guide, sliding guide, roller guide, etc. The slider 24 is also operably coupled to the barbell bar 21 and configured to allow the barbell bar 21 to rotate about its own long axis. The coupling method between the slider 24 and the barbell bar 21 can be a sleeve connection, bearing connection, etc. The barbell bar 21 horizontally spans the barbell guide bar 20 and is slidably coupled to the barbell guide bar 20 via the slider 24. The dimensions at both ends of the barbell bar 21 are suitable for placing conventional barbell plates. The barbell bar 21 is connected to a first hook 27 and a second hook 28, which can rotate with the barbell bar 21 to operably hang the barbell bar 21 onto the latch 31 of the latch assembly 30.

[0042] like Figure 3 and Figure 4As shown, during the use of fitness equipment 100, the user uses two mounting brackets 30, which are detachably installed onto the first mounting post 5 and the second mounting post 6, respectively. Figure 2 As shown, the hook assembly 30 includes a U-shaped support 32 integrally formed from a first wall 33, a second wall 34, and a third wall 35. Hooks 31 extend outward from the first wall 33 and are configured to connect to the first hook 27 and the second hook 28, which are operable. The hooks 31 are linearly spaced perpendicular to the first wall 33. Another portion of the hooks 31 extends through the inter-wall cavity 37 of the U-shaped support 32 and connects to the third wall 35. Although in Figures 2 to 4 Four latches 31 are shown, but it should be understood that within the scope of the invention, the latch assembly 30 may have more than four or fewer latches 31.

[0043] like Figure 2 As shown, the hanger assembly 30 also includes an auxiliary support portion 40. The auxiliary support portion 40 is integrally formed with the first wall 33 of the U-shaped support 32 and connected to the second wall 34. The auxiliary support portion 40 includes a first auxiliary support section 41 and a second auxiliary support section 42, wherein the second auxiliary support section 42 is perpendicular to the first auxiliary support section 41 and parallel to the second wall 34 of the U-shaped support 32. The space enclosed by the auxiliary support portion 40 and the second wall 34 forms a cavity 44, which can accommodate a portion of the length of the column of either the first mounting post 5 or the second mounting post 6. The auxiliary support portion 40 ensures that the hanger assembly 30 does not swing after the barbell bar is hung on the hanger 31 via the first hook 27 and the second hook 28. The hanger assembly 30 also includes a positioning bolt 45, with the upper edge of the auxiliary support portion 40 below the positioning bolt 45. The positioning bolt 45 is fixed to the outer surface of the second wall 34 and extends vertically outward. When installing the mounting bracket assembly 30, the user first holds the U-shaped support parallel to the ground, then aligns the positioning pin 45 with the positioning hole 13 and inserts it completely. The user then rotates the U-shaped support 32 around the positioning pin, causing portions of the first mounting post 5 and the second mounting post 6 to be inserted into the cavity 44. It should be understood that, within the scope of this invention, the mounting bracket assembly 30 can be installed at any position at the same height on the first mounting post 5 and the second mounting post 6.

[0044] like Figure 4As shown, the fitness equipment 100 also includes a weight assembly 50 operatively coupled to the barbell bar 21. It should be understood that, within the scope of the invention, the fitness equipment 100 may or may not include the weight assembly 50. The weight assembly 50 can be selectively used by the user to provide assistance during barbell training. The weight assembly 50 includes a weight 51, a support member 52, a cable 53, and a pulley 54, with the weight 51 operatively coupled to the support member 52. It should be understood that, within the scope of the invention, the weight 51 may consist of a varying number of weights, depending on the training requirements of the user of the fitness equipment 100. One end of the cable 53 is operatively coupled to the weight 51 via a connection to the support member 52. The other end of the cable 53 is operatively connected to a slider 24, passing over the pulley 54. The weight 51, acting as a balance for the barbell bar 21 and any weight operatively coupled thereto, can reduce the training load of moving the barbell bar 21 and the weight operatively coupled thereto.

[0045] The above description is a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model, and the protection scope of the present utility model shall be defined by the claims.

Claims

1. An adjustable barbell rod hanging height assembly, comprising: two barbell guide rods (20) arranged in parallel with a certain distance between them; a sliding member (24) operatively coupled to each of the barbell guide rods (20); the sliding member (24) is operatively coupled to a barbell rod (21); the barbell rod (21) can rotate around its own long axis; the barbell rod (21) is connected with a first hook (27) and a second hook (28); characterized in that: a first mounting column (5) and a second mounting column (6) are further included, the first and second mounting columns (5, 6) are arranged in parallel, at an angle with the ground and with a certain distance; the first and second mounting columns (5, 6) have a plurality of positioning holes (13) arranged in a linear manner along their long axes; the barbell guide rods (20) are arranged in parallel with the first and second mounting columns (5, 6), and the two barbell guide rods (20) are located on the same side of the plane formed by the first and second mounting columns (5, 6); a hook assembly (30) is further included, the hook assembly (30) comprises a U-shaped support (32), the long axis of the U-shaped support (32) is parallel to the barbell guide rods (20); the U-shaped support (32) is composed of a first wall (33), a second wall (34) and a third wall (35) which are fixedly connected or integrally formed, the first wall (33) and the third wall (35) are both perpendicular to the plane formed by the first and second mounting columns (5, 6) and are respectively connected to the opposite ends of the second wall (34); the plane formed by the first and second mounting columns (5, 6) is located on both sides of the second wall (34) with the first and third walls (33, 35); the positioning holes (13) are arranged on the column surface where the first and second mounting columns (5, 6) cooperate with the second wall (34); the hook assembly (30) can be operatively positioned on the first and second mounting columns (5, 6) by cooperating with the positioning holes (13) through the positioning components connected to the second wall (34); the hook assembly (30) further comprises a hook (31) connected to the first wall (33) and the third wall (35), a part of the hook (31) extends vertically outward from the outer surface of the first wall (33); rotating the barbell rod (21) can make the first and second hooks (27, 28) hook and connect with the hook (31); a limiting structure is arranged to limit the swinging direction of the U-shaped support (32) towards the end of the third wall (35) pointed by the hook (31).

2. The adjustable barbell rod hanging height assembly according to claim 1, characterized in that: the limiting structure is a limiting protrusion connected to the second wall (34) and inserted into the positioning hole (13); the limiting protrusion is arranged above and below the positioning components along the long axes of the first and second mounting columns (5, 6).

3. The adjustable barbell bar height placement assembly of claim 1, wherein: the positioning hole (13) is a hole perpendicular to the long axis of the first and second mounting posts (5, 6); the positioning member is a cylindrical positioning pin (45) extending from the second wall (34) into the positioning hole (13) in a direction perpendicular to the second wall (34); the limiting structure is an auxiliary support portion (40) fixedly connected to or integrally formed with the U-shaped support (32), the auxiliary support portion (40) being located on both sides of the second wall (34) with respect to the first and third walls (33, 35); and the auxiliary support portion (40) extends from the second wall (34) in a direction along the surfaces of the first and second mounting posts (5, 6) to limit the swinging of the U-shaped support (32) toward the direction in which the end of the hanging pin (31) near the third wall (35) is directed.

4. The adjustable barbell bar height placement assembly of claim 3, wherein: the auxiliary support portion (40) is integrally formed with the U-shaped support (32); the first and second mounting posts (5, 6) are rectangular posts; the auxiliary support portion (40) extends from the junction of the second wall (34) and the first wall (33) in a direction perpendicular to the second wall (34) and fits the surface of the first and second mounting posts (5, 6) in the direction in which the end of the hanging pin (31) near the first wall (33) is directed.

5. The adjustable barbell bar height placement assembly of claim 4, wherein: the first and second mounting posts (5, 6) are perpendicular to the ground, and the positioning hole (13) penetrates the post bodies of the first and second mounting posts (5, 6); the positioning pin (45) is a cylindrical pin fixedly connected to or integrally formed with the second wall (34) and has a length capable of penetrating the positioning hole (13); the auxiliary support portion (40) includes an auxiliary support portion first segment (41) and an auxiliary support portion second segment (42) integrally formed; the auxiliary support portion first segment (41) is an extension of the first wall (33) and fits the surface of the first and second mounting posts (5, 6) in the direction in which the end of the hanging pin (31) near the first wall (33) is directed; the auxiliary support portion second segment (42) is perpendicular to the auxiliary support portion first segment (41) and parallel to the second wall (34); the upper edges of the auxiliary support portion first segment (41) and the auxiliary support portion second segment (42) are lower than the connection between the positioning pin (45) and the second wall (34); and the auxiliary support portion (40) and the second wall (34) form a rectangular cavity (44) with an open side, the cavity (44) accommodating the post bodies of the first and second mounting posts (5, 6) when the hanging pin assembly (30) is positioned on the first and second mounting posts (5, 6). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The hooks (31) are arranged in a plurality and linearly spaced in the vertical direction.

6. A fitness machine, characterized in that: a frame (10) and an adjustable barbell rod height adjusting assembly as claimed in any one of claims 1-5; the frame (10) has a plurality of vertical support members (12) and a plurality of horizontal support members (14), the vertical support members (12) and the horizontal support members (14) are operatively connected to define a training area (2); the first and second mounting posts (5, 6) and the barbell guide rod (20) extend from the horizontal support members (14) at the bottom of the frame (10) to the horizontal support members (14) at the top of the frame (10).

7. The fitness machine as claimed in claim 6, characterized in that: the vertical support members (12) are perpendicular to the ground; the positioning holes (13) are arranged from the bottom end to the top end of the first and second mounting posts (5, 6).

8. The fitness machine as claimed in claim 7, characterized in that: further comprising a weight assembly (50), the weight assembly (50) comprising a weight (51), a cable (53) and a pulley (54); the first end of the cable (53) is coupled to the weight (51), and the second end of the cable (53) is coupled to the barbell rod (21) through the pulley (54); the pulley (54) is mounted on the horizontal support member (14) at the top of the frame (10).

9. The fitness machine as claimed in claim 8, characterized in that: the weight assembly (50) further comprises a load-bearing member (52), one end of the load-bearing member (52) bears the weight (51), and the other end of the load-bearing member (52) is connected to the first end of the cable (53).

10. An exercise machine according to any one of claims 8-9, characterized in that: the pulley (54) has two.

Images