CN211724562U - Fitness equipment and counterweight adjusting structure thereof - Google Patents

Abstract

A counterweight adjusting structure comprises two locking parts, a guide rod, a counterweight arm, at least one fixing sleeve and at least one counterweight block; the counterweight arm comprises a first assembling end, a counterweight rod, a pivoting seat and a second assembling end; the first assembling end and the second assembling end are respectively positioned at two ends of the counterweight rod; the pivot joint seat is positioned on the counterweight rod on one side of the second assembling end; the guide rod is of a special-shaped structure; the guide rod is fixedly connected with the first assembling end and the second assembling end through locking components respectively; the fixed sleeve is sleeved on the guide rod; the balancing weight is sleeved and fixed on the fixed sleeve. The utility model discloses an adjust the position of balancing weight locking lever in the guide arm, change the moment of counter weight arm to satisfy the regulation of different users to body-building apparatus counter weight size, through adopting spring plunger, can lock simple structure, convenient operation to the counter weight position fast.

Description

Fitness equipment and counterweight adjusting structure thereof

Technical Field

The utility model relates to a body-building apparatus field, in particular to body-building apparatus and counter weight regulation structure thereof.

Background

Because the life is busy, modern people generally lack the motion, body-building apparatus can help people to alleviate fatigue, build up body, increases the body-building apparatus of arm strength training and also can alleviate fatigue, build up body. At present, the body-building apparatus of current increase arm strength training in the market, its reinforcing strength training's balancing weight adopts the bolt formula that increases balancing weight quantity more to adjust, this just needs body-building apparatus manufacturer to produce the balancing weight of a plurality of equal or different weights to the strength training needs of different training personnel of cooperation, this kind of balancing weight production is simple, but production quantity is numerous, the cost is higher, need artifical a slice of quantity that increases the balancing weight during the use, be unfavorable for the user to operate, and stability is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a body-building apparatus and structure is adjusted to counter weight thereof, its counter weight is adjusted the structure accessible and is adjusted the position of balancing weight in the guide arm and change the moment of counter weight arm to satisfy the needs of different users to the body-building apparatus counter weight size, and through adopting the fixed balancing weight of spring plunger, can lock simple structure, convenient operation to the counter weight position fast.

In order to achieve the above object, the solution of the present invention is: a counterweight adjusting structure comprises two locking parts, a guide rod, a counterweight arm, at least one fixing sleeve and at least one counterweight block; the counterweight arm comprises a first assembling end, a counterweight rod, a pivoting seat and a second assembling end; the first assembling end and the second assembling end are respectively positioned at two ends of the counterweight rod, and both the first assembling end and the second assembling end are of hollow structures; the pivot seat is positioned on the counterweight rod on one side of the second assembling end, and a pivot hole is formed in the pivot seat; the guide rod is of a special-shaped structure; the guide rod is fixedly connected with the first assembling end and the second assembling end through locking components respectively; the fixed sleeve is sleeved on the guide rod; the balancing weight is sleeved and fixed on the fixed sleeve.

Further, the locking component comprises a fixed nut and a fixed lock sleeve; the fixing nut and the fixing lock sleeve are respectively provided with a threaded hole and a mounting hole; the fixing nut and the fixing lock sleeve are symmetrically arranged relative to the counterweight rod.

Furthermore, the guide rod comprises two insertion rods, two locking rods and a U-shaped rod; the locking rods are located at two ends of the U-shaped rod, and the other ends of the locking rods are connected with the insertion rods.

Still further, the locking lever includes at least one locking groove.

Furthermore, the fixing sleeve at least comprises a spring plunger and a sleeve; the sleeve is of a hollow structure, and a fixing groove is formed in the outer side of the sleeve; the surface of the fixing groove is at least provided with a connecting hole; the spring plunger is inserted into the connecting hole in a penetrating mode, and one end of the spring plunger is arranged to be an arc-shaped end face.

Furthermore, the center of the balancing weight block at least comprises a fixing hole.

A body-building apparatus comprises a main frame, two driving arms, and two counterweight adjusting structures as above; the driving arm is fixedly connected with the pivot joint seat of the counterweight adjusting structure, and the main frame is rotatably connected with the pivot joint seat of the counterweight adjusting structure.

Further, the main frame comprises a rear support, a front support, a cross connecting frame, two connecting parts, two side supports, a cushion and a chest cushion; the front support and the rear support are respectively connected with the front end and the rear end of the cross-shaped connecting frame, and one end of the front support is connected with the rear support; the two side brackets are respectively and fixedly connected with the left end and the right end of the cross connecting frame, and the two connecting parts are respectively and fixedly connected with the two side brackets; cushion and chest pad all with rear bracket fixed connection.

Furthermore, the connecting component at least comprises a nut, a connecting sheet and a bolt; the connecting sheet is fixedly connected with the side bracket, and a through hole is formed in the connecting sheet; the pin joint seat of the counterweight adjusting structure is arranged on one side of the connecting sheet, and the bolt penetrates through the through hole of the connecting sheet, the pin joint seat and the nut to be fixedly connected.

Further, the driving arm comprises an arm rod and an armrest; the handrail is fixedly connected with the arm rod; the arm rod is fixedly connected with the pivot connection seat of the counterweight adjusting structure.

Compared with the prior art, the utility model has the advantages that: by adopting the counterweight adjusting structure, when a user of the fitness equipment carries out arm strength training, counterweight adjustment can be carried out according to the actual requirement of the user, so that the moment of the counterweight arm is changed, the counterweight weight is increased or reduced, and the counterweight adjusting structure is simple in structure and convenient and fast to operate; the spring plunger with the arc-shaped end face is adopted to fix the balancing weight, so that elastic locking of the balancing weight can be quickly realized, the operation is convenient, and the stability is good; because the utility model discloses a balancing weight can realize different grades of counterweight adjustment, when a plurality of balancing weights make up the use, the counter weight scope is wider, and manufacturing cost is lower.

Drawings

Fig. 1 is a schematic view of the counterweight adjusting structure of the present invention.

Fig. 2 is an exploded view of the counterweight adjustment structure of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is an exploded view of the fixing cover of the present invention.

Fig. 5 is the schematic view of the section structure of the counterweight block after being assembled by the fixing sleeve and the guide rod.

Fig. 6 is a schematic perspective view of an exercise apparatus with a weight adjustment structure.

Fig. 7 is an exploded view of the counterweight adjustment structure and the main frame.

Fig. 8 is a front view of an exercise apparatus with a weight adjustment structure.

Fig. 9 is a schematic diagram of the exercise state of the exercise equipment with the counterweight adjusting structure.

Reference numerals: the weight adjusting structure 1, the locking member 11, the fixing nut 111, the threaded hole 111 ', the fixing lock sleeve 112, the mounting hole 112', the guide rod 12, the insertion rod 121, the locking block 1211, the insertion rod 1212, the locking rod 122, the locking groove 122 ', the first locking groove 1222, the second locking groove 1223, the third locking groove 1224, the U-shaped rod 123, the limit latch 124, the weight arm 13, the first mounting end 131, the weight rod 132, the pivot socket 133', the second mounting end 134, the fixing sleeve 14, the spring plunger 141, the connecting hole 142, the sleeve 143, the fixing groove 144, the weight block 15, the fixing hole 15 ', the triangular reinforcing plate 2, the driving arm 3, the arm rod 31, the armrest 32, the main frame 4, the rear frame 41, the spacer 411, the fixing rod 412, the main rod 413, the front frame 42, the cross-shaped connecting frame 43, the main frame 44, the nut 441, the connecting piece 442, the through hole 442', the bolt, Connecting rod 452, installation foot 46, cushion 5, chest pad 6, body-building apparatus 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The first embodiment is as follows:

as shown in fig. 1-3, a counterweight adjusting structure 1 includes two locking components 11, a guide rod 12, a counterweight arm 13, a fixing sleeve 14, and a counterweight 15; the weight arm 13 comprises a first mounting end 131, a weight rod 132, a pivot seat 133, and a second mounting end 134; the first assembling end 131 and the second assembling end 134 are integrally formed with the weight rod 132 and are respectively located at two ends of the weight rod 132, and both the first assembling end 131 and the second assembling end 134 are hollow structures; the pivot seat 133 and the weight rod 132 are integrally formed and are located on the weight rod 132 at the inner side of the second assembling end 134, and a pivot hole 133' is formed in the pivot seat 133; the guide rod 12 is of a U-shaped structure; the guide rod 12 comprises two insertion rods 121, two locking rods 122, a U-shaped rod 123 and two limiting clamping blocks 124; the locking rod 122 is fixedly connected with the U-shaped rod 123 and is respectively positioned at two ends of the U-shaped rod 123, the other end of the locking rod 122 is connected with the limiting fixture block 124, and the other end of the limiting fixture block 124 is fixedly connected with the insertion rod 121; one ends of two insertion rods 121 of the guide rod 12 are fixedly connected with the first assembling end 131 and the second assembling end 134 through the locking component 11 respectively; the fixing sleeve 14 is sleeved on the locking rods 122 of the guide rod 12, the counterweight 15 is sleeved and fixed on the fixing sleeve 14, the fixing sleeve 14 can slide back and forth between the two locking rods 122 along the U-shaped rod 123, and the counterweight 15 is changed due to the change of the position of the fixing sleeve 14, so that the moment of the counterweight arm 13 is changed. The fixing sleeve 14 and the weight block 15 used in the embodiment of the present application are not limited to one, and a plurality of fixing sleeves 14 and weight blocks 15 may be used in combination.

Two ends of the weight rod 132 are respectively provided with an insertion hole (not shown), the insertion holes are respectively arranged corresponding to the first assembling end 131 and the second assembling end 134, and the insertion holes are communicated with the hollow cavities of the first assembling end 131 and the second assembling end 134; the weight lever 132 is not limited to being integrally formed with the first and second mounting ends 131 and 134, and may be welded to the first and second mounting ends 131 and 134.

The locking component 11 comprises a fixed nut 111 and a fixed lock sleeve 112, and a threaded hole 111 'and a mounting hole 112' are respectively formed on the fixed nut 111 and the fixed lock sleeve 112; the fixing nut 111 and the fixing lock sleeve 112 are symmetrically arranged around the counterweight rod 132; the two fixed lock sleeves 112 are respectively sleeved on the two limiting clamping blocks 124, so that the guide rod 12 is conveniently and fixedly assembled with the counterweight arm 13 through the locking part 11.

Each insertion rod 121 comprises a locking block 1211 and an insertion rod 1212; the locking block 1211 is integrally formed with the insertion rod 1212 and is located at one end of the insertion rod 1212, and the diameter of the locking block 1211 is smaller than that of the insertion rod 1212; the other end of the insertion rod 1212 is fixedly connected to the limiting fixture block 124, and the insertion rod 1212 is provided with a thread that is engaged with the threaded hole 111 ', so that the insertion rod 1212 of the insertion rod 121 is screwed into the threaded hole 111' of the fixing nut 111, and the guide rod 12 and the locking member 11 are assembled.

As shown in fig. 3 and 5, each locking rod 122 further includes a locking groove 122'; the locking grooves 122' include a first locking groove 1222, a second locking groove 1223, a third locking groove 1224; the first locking groove 1222, the second locking groove 1223 and the third locking groove 1224 are sequentially arranged at intervals, the counterweight block 15 moves on the locking rod 122 along with the fixing sleeve 14, and the position of the counterweight block 15 fixed on the locking rod 122 is changed by clamping the elastic force of the spring plunger 141 in the fixing sleeve 14 with the locking grooves 122' at different positions, so that the moment of the counterweight arm 13 is changed, and the requirements of users on different counterweight sizes are met.

As shown in fig. 4, the fixing sleeve 14 includes a three-spring plunger 141, a sleeve 143; the sleeve 143 is a hollow structure, a fixing groove 144 is arranged on the outer side of the sleeve 143, and the counterweight 15 is sleeved in the fixing groove 144 of the sleeve 143; the surface of the fixing groove 144 is provided with three connecting holes 142 at intervals along the circumferential direction, and the connecting holes 142 are communicated with the hollow cavity of the sleeve 143; the spring plungers 141 are respectively inserted into the three connecting holes 142, one end of each spring plunger 141 is an arc-shaped end surface, the arc-shaped end surface of each spring plunger 141 is located in the hollow cavity of the sleeve 143, and friction force between the arc-shaped spring plungers 141 and a connecting piece during assembly can be reduced, so that abrasion of the spring plungers 141 is prevented.

As shown in fig. 5, three fixing holes 15 ' are formed in the center of the weight block 15, and the fixing holes 15 ' are matched with the spring plungers 141 in size, so that the spring plungers 141 can be conveniently inserted into the fixing holes 15 ' to be fixedly connected with the weight block 15, thereby realizing the assembly of the weight block 15 and the fixing sleeve 14.

The installation sequence of the embodiment of the application is as follows: firstly, the counterweight 15 is sleeved in the fixing groove 144 of the sleeve 143 of the fixing sleeve 14, the spring plunger 141 of the fixing sleeve 14 is inserted into the fixing hole 15 'of the counterweight 15 to be fixedly connected with the counterweight 15, then the fixing sleeve 14 with the counterweight 15 is sleeved on the locking rod 122 of the guide rod 12, then the insertion rod 121 passes through the mounting hole 112' of the fixing lock sleeve 112 of the locking part 11, the fixing lock sleeve 112 is sleeved on the limiting fixture block 124 of the locking rod 122, then the two insertion rods 121 in the two guide rods 12 with the fixing lock sleeves 112 are respectively inserted into the hollow cavities of the first assembling end 131 and the second assembling end 134 of the counterweight arm 13, so that the locking block of the insertion rod 121 passes through the insertion hole of the counterweight rod 132 to extend to the outer side of the counterweight rod 132, one end of the two limiting fixture blocks 124 is respectively abutted against the first assembling end 131 and the second assembling end 134, and then the fixing nut 111 is screwed and sleeved on the locking block 1211, so that the locking block 1211 of the insertion rod 121 is spirally connected with the threaded hole 111' of the fixing nut 111, and the guide rod 12 and the counterweight arm 13 are locked.

When the embodiment of this application uses, the user can be according to the position that actual training demand adjusted balancing weight 15, specifically is: the counterweight 15 is locked at the first locking groove 1222 of the locking rod 122, the counterweight 15 and the fixing sleeve 14 are pushed to slide back and forth between the two locking rods 122 along the U-shaped rod 123 until the counterweight 15 and the fixing sleeve 14 slide to the second locking groove 1223, the third locking groove 1224 of the locking rod 122 or the first locking groove 1222, the second locking groove 1223 and the third locking groove 1224 of another locking rod 122, the three spring plungers 141 of the fixing sleeve 14 can be clamped into the corresponding first locking groove 1222, the second locking groove 1223 and the third locking groove 1224 under the action of elastic force, and then the moment of the counterweight arm 13 is changed, so that the requirements of users for different counterweight sizes are met.

As shown in fig. 6-9, an exercise apparatus 7 comprises a main frame 4, two driving arms 3, and two weight adjusting structures 1 as described above; the driving arm 3 is fixedly connected with a pivot seat 133 of the counterweight adjusting structure 1, the main frame 4 is rotatably connected with the pivot seat 133 of the counterweight adjusting structure 1, and a user can push the driving arm 3 with the counterweight adjusting structure 1 to rotate around the main frame 4 to perform arm strength training;

the main frame 4 comprises a rear bracket 41, a front bracket 42, a cross connecting bracket 43, two connecting parts 44, two side brackets 45, a cushion 5 and a chest pad 6; the front support 42 and the rear support 41 are respectively connected with the front end and the rear end of the cross connecting frame 43, one end of the front support 42 is connected with the rear support 41, and the other end of the front support 42 is connected with the ground; the two side brackets 45 are respectively fixedly connected to the left end and the right end of the cross connecting frame 43; the two connecting parts 44 are respectively fixedly connected with the brackets 45 at the two sides; the cushion 5 and the chest pad 6 are fixedly connected with the rear support 41; the bottom ends of the two side brackets 45 are flush with the bottom ends of the rear bracket 41 and the front bracket 42, so that the stability of the main frame 4 in placement and use is ensured; the main frame 4 further comprises four mounting feet 46, and the mounting feet 46 are welded to the bottom ends of the rear support 41, the front support 42 and the two side supports 45 respectively, so that the main frame 4 is fixed to the ground conveniently.

As shown in fig. 8, the rear bracket 41 includes a pad 411, a fixing rod 412, and a main rod 413; the cushion block 411 and the main rod 413 are integrally formed and are positioned at the upper end of the main rod 413, and the chest pad 6 is fixedly connected to the end surface of the cushion block 411; the fixing rod 412 is fixedly connected with the main rod 413 and is positioned below the cushion block 411, and the fixing rod 412 is perpendicular to the main rod 413; the seat cushion 5 is fixedly connected to the upper end of the fixing rod 412.

The side bracket 45 comprises a support bar 451 and a connecting bar 452; the supporting rod 451 is welded or integrally formed at the bottom end of the connecting rod 452;

as shown in fig. 7, the connecting member 44 includes a nut 441, two connecting pieces 442, and a bolt 443; the two connecting sheets 442 are respectively sleeved at two ends of the connecting rod 452, and a through hole 442' is formed in each connecting sheet 442; the pivot seat 133 of the counterweight adjustment structure 1 is disposed between the two connecting pieces 442, and the bolt 443 is inserted through the through hole 442 ' of one of the connecting pieces 442, passes through the pivot hole 133 ' and is inserted through the through hole 442 ' of the other connecting piece 442 to be fixedly connected with the nut 441, so that the counterweight adjustment structure 1 and the main frame 4 are stably assembled through the connecting member 44.

As shown in fig. 6, the driving arm 3 includes an arm rod 31, an armrest 32; the handrail 32 is fixedly connected with the arm rod 31; the arm rod 31 is fixedly connected with the pivot seat 133 of the counterweight adjusting structure 1, and the arm rod 31 of the driving arm 3 is perpendicular to the counterweight rod 132 of the counterweight adjusting structure 1; still be equipped with triangle-shaped reinforcing plate 2 on the armed lever 31 of actuating arm 3, connect through triangle-shaped reinforcing plate 2 between armed lever 31 and the counter weight pole 132 of structure 1 is adjusted to the counter weight, improved the stability of being connected between actuating arm 3 and the structure 1 is adjusted to the counter weight.

When this application embodiment uses, user's accessible main frame 4 cushion 5 and chest pad 6 sit and lean on and carry out the arm strength training, specifically are: the user adjusts the counter weight size that structure 1 was adjusted to the counter weight according to actual training demand, sits and leans on body frame 4 again, promotes through two handrails 32 that the actuating arm 3 rotates, trains arm muscle.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A counterweight adjustment structure (1), characterized in that: comprises two locking parts (11), a guide rod (12), a counterweight arm (13), at least one fixing sleeve (14) and at least one counterweight block (15); the counterweight arm (13) comprises a first assembling end (131), a counterweight rod (132), a pivot seat (133) and a second assembling end (134); the first assembling end (131) and the second assembling end (134) are respectively positioned at two ends of the counterweight rod (132), and the first assembling end (131) and the second assembling end (134) are both hollow structures; the pivoting seat (133) is positioned on the counterweight rod (132) at one side of the second assembling end (134), and a pivoting hole (133') is formed in the pivoting seat (133); the guide rod (12) is of a special-shaped structure; the guide rod (12) is fixedly connected with the first assembling end (131) and the second assembling end (134) through the locking component (11); the fixed sleeve (14) is sleeved on the guide rod (12); the balancing weight (15) is sleeved and fixed on the fixing sleeve (14).

2. A counterweight adjustment structure (1) according to claim 1, characterized in that: the locking component (11) comprises a fixed nut (111) and a fixed lock sleeve (112); the fixing nut (111) and the fixing lock sleeve (112) are respectively provided with a threaded hole (111 ') and a mounting hole (112'); the fixing nut (111) and the fixing lock sleeve (112) are symmetrically arranged relative to the counterweight rod (132).

3. A counterweight adjustment structure (1) according to claim 1, characterized in that: the guide rod (12) comprises two insertion rods (121), two locking rods (122) and a U-shaped rod (123); the locking rods (122) are located at two ends of the U-shaped rod (123), and the other end of each locking rod (122) is connected with the insertion rod (121).

4. A counterweight adjustment structure (1) according to claim 3, characterized in that: the locking lever (122) includes at least a locking groove (122').

5. A counterweight adjustment structure (1) according to claim 1, characterized in that: the fixing sleeve (14) at least comprises a spring plunger (141) and a sleeve (143); the sleeve (143) is of a hollow structure, and a fixing groove (144) is formed in the outer side of the sleeve (143); the surface of the fixing groove (144) is at least provided with a connecting hole (142); the spring plunger (141) is inserted into the connecting hole (142), and one end of the spring plunger (141) is an arc-shaped end face.

6. A counterweight adjustment structure (1) according to claim 1, characterized in that: the center of the balancing weight (15) at least comprises a fixing hole (15').

7. An exercise apparatus (7), characterized by: comprising a main frame (4), two driving arms (3), two counterweight adjustment structures (1) according to any one of claims 1 to 6; the driving arm (3) is fixedly connected with a pivoting seat (133) of the counterweight adjusting structure (1), and the main frame (4) is rotatably connected with the pivoting seat (133) of the counterweight adjusting structure (1).

8. An exercise apparatus (7) as claimed in claim 7, wherein: the main frame (4) comprises a rear bracket (41), a front bracket (42), a cross connecting frame (43), two connecting parts (44), two side brackets (45), a cushion (5) and a chest cushion (6); the front support (42) and the rear support (41) are respectively connected with the front end and the rear end of the cross connecting frame (43), and one end of the front support (42) is connected with the rear support (41); the two side brackets (45) are respectively and fixedly connected to the left end and the right end of the cross connecting frame (43), and the two connecting parts (44) are respectively and fixedly connected with the two side brackets (45); the cushion (5) and the chest pad (6) are both fixedly connected with the rear bracket (41).

9. An exercise apparatus (7) as claimed in claim 8, wherein: the connecting part (44) at least comprises a nut (441), a connecting sheet (442) and a bolt (443); the connecting sheet (442) is fixedly connected with the side bracket (45), and a through hole (442') is formed in the connecting sheet (442); the pivot seat (133) of the counterweight adjusting structure (1) is arranged on one side of the connecting sheet (442), and the bolt (443) penetrates through the through hole (442') of the connecting sheet (442) to be fixedly connected with the pivot seat (133) and the nut (441).

10. An exercise apparatus (7) as claimed in claim 7, wherein: the driving arm (3) comprises an arm rod (31) and an armrest (32); the handrail (32) is fixedly connected with the arm rod (31); the arm rod (31) is fixedly connected with a pivoting seat (133) of the counterweight adjusting structure (1).

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