Multi-functional adjustable weight lifting equipment

Abstract

The application provides a multifunctional adjustable weight lifting device, which comprises a handle, a counterweight mounting assembly for mounting counterweight plates, and a safety lock assembly arranged between the handle and the counterweight mounting assembly, one side of the safety lock assembly being fixedly connected with the counterweight mounting assembly, and the end of the handle being detachably clamped with the safety lock assembly. The safety lock assembly is arranged between the counterweight mounting assembly and the handle, so that the handle can be quickly replaced, the replacement process is safe, and the falling or toppling of the counterweight plates is avoided. In addition, the counterweight mounting assembly is provided with multiple pairs of hooking parts and avoiding parts with different angles, different numbers of counterweight plates can be hooked by rotating the rotating shaft by different angles, so that the weight can be adjusted, and the adjustment process is simple, convenient and safe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fitness equipment, in particular to a multifunctional adjustable weight lifting equipment. BACKGROUND

[0002] Weight lifting equipment is favored by many fitness enthusiasts. In different exercise stages, different types of weight lifting equipment are selected and the weight requirements are also different. Different weight lifting equipment has different grips. For example, the length of the grip is different, and the grip of the barbell has straight and curved grips. The ordinary grip directly installs the weight plate on both sides of the grip. When changing, the weight plate needs to be removed one by one, which is very inconvenient, and accidents such as bruising are likely to occur during the changing process. In addition, the adjustment of the weight is also very inconvenient. Due to the heavy weight of the weight plate, there is a certain safety hazard in the adjustment process. SUMMARY

[0003] The purpose of the present application is to provide a multifunctional adjustable weight lifting equipment. A safety lock assembly is arranged between the grip and the weight installation assembly. The grip can be directly connected and replaced through the safety lock assembly, which realizes safe and convenient replacement of the grip. At the same time, the weight plate installation assembly realizes convenient adjustment of the weight. The weight plate can be adjusted without carrying, which is convenient and safe.

[0004] In order to achieve the above purpose, the present application provides the following technical scheme:

[0005] A multifunctional adjustable weight lifting equipment includes a grip, a weight installation assembly for installing a weight plate, and a safety lock assembly arranged between the grip and the weight installation assembly. One side of the safety lock assembly is fixedly connected with the weight installation assembly, and the end of the grip is detachably clamped with the safety lock assembly.

[0006] Further, the two ends of the grip are fixedly connected with a connecting plate. When the end of the grip is clamped with the safety lock assembly, the connecting plate is limited in the inside of the safety lock assembly to prevent the end of the grip from sliding out of the safety lock assembly.

[0007] Further, the safety lock assembly comprises a first fixed plate, an open first fixed slot is arranged at the middle position of the first fixed plate, the lower end of the first fixed plate is hingedly connected with the counterweight installation assembly; a second fixed plate, an open second fixed slot is arranged at the middle position of the second fixed plate, the second fixed slot is oppositely arranged with the first fixed slot, the lower end of the second fixed plate is hingedly connected with the counterweight installation assembly; when the first fixed slot and the second fixed slot are opposite, the shape formed by the combination matches the shape of the handle pipe end of the handle; a locking device detachably connects and fixes the upper end of the first fixed plate with the upper end of the second fixed plate. When the locking device locks the upper end of the first fixed plate and the upper end of the second fixed plate, the first fixed slot and the second fixed slot clamp and limit the handle pipe of the handle.

[0008] Further, the locking device comprises a fixing piece and a wrench, one end of the fixing piece is hingedly connected with the middle position of the wrench, the other end of the fixing piece is provided with a first locking pin, one end of the wrench is provided with a second locking pin; a hook is arranged on the surface of the upper end of the first fixed plate, the size of the hook matches the size of the first locking pin, so that the hook can be hung together with the first locking pin; an installation hole is arranged on the surface of the upper end of the second fixed plate, the second locking pin passes through the installation hole to hingedly connect the wrench with the second fixed plate. The fixing piece and the wrench form a connecting rod structure, and the clamping and unclamping states of the first locking pin and the hook are controlled by turning the wrench.

[0009] Further, the safety lock assembly further comprises a safety lock shell, the first fixed plate and the second fixed plate are installed inside the safety lock shell, the edge of the safety lock shell is provided with an open port, the upper end of the first fixed plate and the upper end of the second fixed plate pass out of the open port; the locking device further comprises a pinch, the pinch has two edge strips at an obtuse angle, the pinch is hingedly connected with the wrench at the intersection of the two edge strips, the end of the lower end edge strip of the pinch is provided with a hook, correspondingly, a clamping groove matching the hook is arranged on the side wall of the safety lock shell, the wrench cannot be turned when the hook is clamped with the clamping groove. By clamping the pinch with the safety lock shell, the wrench is further limited, preventing the wrench from shaking and causing the handle and the safety lock assembly to be loose and causing a safety accident.

[0010] Further, the wrench is provided with a torsion spring, and the wrench is provided with an abutting groove corresponding to the installation position of the torsion spring, one end of the torsion spring abuts with the abutting groove, and the other end of the torsion spring abuts with the inner side surface of the free end of the wrench. When the hook abuts with the torsion spring under the elastic force, the hook and the hook groove are kept in the state of being clamped, and the safety accident caused by the unlocking by mistake is prevented.

[0011] Further, the counterweight installation assembly comprises a rotating shaft, at least one cam mechanism is non-rotatably sleeved on the rotating shaft, and the counterweight piece is hung; the cam mechanism has a plurality of pairs of hooking parts and avoiding parts with different angles, the middle of the counterweight piece is provided with an opening for accommodating the rotating shaft, and the side surface of the counterweight piece located outside the opening is provided with a cam groove, and the upper edge of the cam groove is provided with an open clamping port for accommodating the cam mechanism and realizing the hanging between the cam mechanism and the counterweight piece. When the rotating shaft is rotated by different angles, the corresponding cam mechanism can be hung with the counterweight piece, so that the counterweight adjustment of different weights is realized.

[0012] Further, the maximum radial width of each pair of hooking parts of the same cam mechanism is greater than the minimum width of the clamping port, and the maximum radial width of each pair of avoiding parts is less than the minimum width of the clamping port.

[0013] Further, the cam mechanism comprises a bearing layer for being hung with the counterweight piece, and the two sides of the bearing layer are respectively provided with wear-resistant layers, the wear-resistant layers separate the bearing layer of the cam mechanism from the counterweight piece, and effectively prevent the wear between the bearing layer and the counterweight piece.

[0014] Further, the wear-resistant layer on one side of the bearing layer is fixedly connected or integrally formed with a connecting neck at a central position, and the free end of the connecting neck is provided with a polygonal connecting protrusion; the wear-resistant layer on the other side of the bearing layer is provided with a connecting groove matched with the shape and size of the connecting protrusion.

[0015] Further, the base is further provided with a base support at each end, and two pairs of handle storage grooves are arranged at the symmetrical positions of the upper surfaces of the base supports on the two sides, for supporting the two ends of the handle.

[0016] The multifunctional adjustable weight lifting equipment disclosed by the application sets a safety lock assembly between the counterweight installation assembly and the handle, realizes quick replacement of the handle, and is safe during replacement, avoids the falling or dumping of the counterweight piece, and is safer to use; the safety lock assembly is provided with a locking device, the locking of the wrench can be released only after the pinch handle is pressed, and then the position relationship between the first fixed plate and the second fixed plate is released through the wrench; the counterweight installation assembly is provided with multiple pairs of hooking parts and avoiding parts with different angles, different numbers of counterweight pieces are hooked by rotating the rotating shaft by different angles, so that the weight is adjusted, the adjustment process is simple, convenient and very safe; the two sides of the cam mechanism are provided with wear-resistant layers, which can effectively prevent wear between the cam mechanism and the counterweight piece; the upper part of the base is provided with a handle storage groove for storing idle handles, and the handles are convenient to arrange and store. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application given below, make an explanation of the application complete, and are not intended to limit the application unduly. In the drawings:

[0018] Figure 1 It is an embodiment of the explosion structure schematic diagram;

[0019] Figure 2 It is an embodiment of the safety lock assembly explosion structure schematic diagram;

[0020] Figure 3 It is an embodiment of the first fixed plate structure schematic diagram;

[0021] Figure 4 It is an embodiment of the second fixed plate structure schematic diagram;

[0022] Figure 5 It is an embodiment of the locking device structure schematic diagram;

[0023] Figure 6 It is an embodiment of the two fixed plate structure schematic diagram in the unlocked state;

[0024] Figure 7 It is an embodiment of the two fixed plate structure schematic diagram in the locked state;

[0025] Figure 8 It is an embodiment of the safety lock assembly structure schematic diagram in the locked state;

[0026] Figure 9 It is Figure 8 The enlarged schematic diagram at region A;

[0027] Figure 10 It is an embodiment of the explosion structure schematic diagram of the barbell;

[0028] Figure 11 Structure diagram of a weight plate of an embodiment;

[0029] Figure 12 Structure diagram of a cam mechanism connected to a weight plate of an embodiment;

[0030] Figure 13 Structure diagram of two sides of a cam mechanism of an embodiment;

[0031] Figure 14 Structure diagram of two cam mechanisms in a connected state of an embodiment;

[0032] Figure 15 Structure diagram of two sides of a cam mechanism of an embodiment;

[0033] Figure 16 Structure diagram of a bent handle and a barbell assembly stored in a base of an embodiment;

[0034] BRIEF DESCRIPTION OF REFERENCE NUMERALS: 1 - handle; 10 - connecting plate; 11 - straight handle tube; 12 - bent handle tube; 2 - weight mounting assembly; 21 - rotating shaft; 22 - cam mechanism; 221 - load bearing layer; 222 - wear prevention layer; 223 - convex point; 224 - connecting neck; 225 - connecting convex; 226 - connecting groove; 23 - weight plate; 231 - opening; 232 - cam groove; 233 - clamping interface; 3 - safety lock assembly; 31 - first fixed plate; 311 - first mounting groove; 312 - first fixed groove; 313 - first positioning hole; 314 - first adjusting hole; 315 - first pointed end; 316 - hook; 32 - second fixed plate; 321 - second mounting groove; 322 - second fixed groove; 323 - second positioning hole; 324 - second adjusting hole; 325 - second pointed end; 326 - mounting hole; 33 - locking device; 331 - fixed part; 332 - wrench; 333 - first lock pin; 334 - second lock pin; 335 - pinch; 336 - torsion spring; 337 - clamping hook; 338 - abutting groove; 34 - front mounting plate; 35 - rear mounting plate; 36 - stepped shaft sleeve; 37 - safety lock housing; 371 - open mouth; 372 - clamping groove; 4 - base; 41 - bottom support; 411 - handle storage groove. DETAILED DESCRIPTION

[0035] The present application will be described in detail below with reference to the attached drawings and embodiments. Various examples are provided by way of explanation of the present application and are not meant as a limitation of the present application. In fact, it will be apparent to those skilled in the art that modifications and variations of the present application can be made without departing from the scope or spirit of the present application. For example, features illustrated or described as part of one embodiment, can be used with another embodiment to yield still a further embodiment. Thus, it is intended that the present application encompass such modifications and variations as come within the scope of the appended claims and their equivalents.

[0036] In the description of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are used only for ease of description of the present application and are not intended to limit the present application to a particular orientation or position, and therefore cannot be understood as limiting the present application. The terms "connected", "connected", "provided" used in the present application should be understood broadly, for example, can be fixed connection, can also be detachable connection; can be directly connected, can also be indirectly connected through intermediate components; can be wired electrical connection, wireless electrical connection, or wireless communication signal connection, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0037] One or more examples of the present application are shown in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the present application. As used herein, the terms "first", "second", and "third", etc. are used interchangeably to distinguish one component from another and are not meant to denote position or importance of the individual components.

[0038] As Figures 1 to 14As shown, according to the embodiment of the present application, a multifunctional adjustable weight lifting equipment is provided, comprising a handle 1, a weight installation assembly 2, a safety lock assembly 3 fixedly installed on the weight installation assembly 2, and the handle 1 and the safety lock assembly 3 are detachably connected. The safety lock assembly 3 comprises a first fixed plate 31, a second fixed plate 32, and a front installation plate 34 for installing the first fixed plate 31 and the second fixed plate 32, the lower ends of the first fixed plate 31 and the second fixed plate 32 are respectively provided with a first installation slot 311 and a second installation slot 321, and the first installation slot 311 and the second installation slot 321 are matched in size. The first installation slot 311 of the first fixed plate 31 and the second installation slot 321 of the second fixed plate 32 are oppositely stacked together and are respectively limitingly hinged with the front installation plate 34. Specifically, the first fixed plate 31 and the second fixed plate 32 are respectively provided with a first positioning hole 312 and a second positioning hole 322 at the symmetrical positions on the plate surfaces, the front installation plate 34 is respectively fixedly installed with a stepped shaft sleeve 36 at the positions corresponding to the first positioning hole 312 and the second positioning hole 322, and the first fixed plate 31 and the second fixed plate 32 can respectively rotate around the stepped shaft sleeve 36 in the first positioning hole 312 and the second positioning hole 322. In order to limit the rotation angle of the first fixed plate 31 and the second fixed plate 32, the first fixed plate 31 and the second fixed plate 32 are respectively provided with a first adjusting hole 313 and a second adjusting hole 323 at the symmetrical positions on the plate surfaces, the first adjusting hole 313 and the second adjusting hole 323 are track-shaped with semicircles at both ends, and the front installation plate 34 is fixedly installed with a stepped shaft sleeve 36 at the positions corresponding to the first adjusting hole 313 and the second adjusting hole 323, as shown in Figure 6As shown, when the first fixed plate 31 and the second fixed plate 32 rotate in the direction of moving away from each other, the upper ends of the first fixed plate 31 and the second fixed plate 32 open outwards relatively, and the opening formed between the upper ends of the first fixed plate 31 and the second fixed plate 32 gradually increases. When the stepped shaft sleeve 36 in the first adjusting hole 313 and the second adjusting hole 323 is located at the innermost end of the first adjusting hole 313 and the second adjusting hole 323 respectively, the opening is the largest at this time. When the first fixed plate 31 and the second fixed plate 32 rotate in the direction of moving close to each other, the upper ends of the first fixed plate 31 and the second fixed plate 32 close inwards relatively. The first fixed plate 31 is provided with a circular arc-shaped first fixed groove 314 above the first mounting groove 311, and the second fixed plate 32 is provided with a circular arc-shaped second fixed groove 324 above the second mounting groove 321. When the first mounting groove 311 and the second mounting groove 321 are relatively stacked together, the first fixed groove 314 and the second fixed groove 324 form a concentric circular arc, and the diameter of the formed circular arc matches the outer diameter of the handle pipe of the handle 1. When the upper ends of the first fixed plate 31 and the second fixed plate 32 close inwards relatively, the width of the opening formed between the upper ends of the first fixed plate 31 and the second fixed plate 32 is smaller than the outer diameter of the handle pipe, and at this time the handle 1 is limited between the first fixed plate 31 and the second fixed plate 32. The first fixed plate 31 is provided with a first pointed end 315 at the end of the first fixed groove 314, and the second fixed plate 32 is provided with a second pointed end 325 at the end of the second fixed groove 324. As shown, Figure 6 When the first fixed plate 31 and the second fixed plate 32 rotate in the direction of moving away from each other, the first pointed end 315 is higher than the circular arc edge of the second fixed groove 324, and the second pointed end 325 is higher than the circular arc edge of the first fixed groove 314. At this time, when the handle pipe of the handle 1 is placed between the first fixed groove 314 and the second fixed groove 324, the handle 1 presses down the first pointed end 315 and the second pointed end 325, so that the first fixed plate 31 and the second fixed plate 32 automatically rotate and reset. The other side surface of the first fixed plate 31 and the second fixed plate 32 is also provided with a rear mounting plate 35 matched with the front mounting plate 34 for installation. The surface of the rear mounting plate 35 has a U-shaped opening, and the rear mounting plate 35 is fixedly connected with the stepped shaft sleeve on the front mounting plate 34 through bolts, so as to install the first fixed plate 31 and the second fixed plate 32 between the front mounting plate 34 and the rear mounting plate 35. The other side of the rear mounting plate 35 is also detachably connected with a safety lock shell 37. The edge of the safety lock shell 37 is provided with an opening 371, and the upper ends of the first fixed plate 31 and the second fixed plate 32 pass through the opening 371. The surface of the safety lock shell 37 is provided with a U-shaped opening corresponding to the position of the U-shaped opening on the rear mounting plate 35, which is used for the handle 1 to pass through. The safety lock shell 37 wraps the rear mounting plate 35, the first fixed plate 31, the second fixed plate 32 and the front mounting plate 34 inside.

[0039] The second fixed plate 32 is hingedly connected with a locking device 33, which comprises a fixed part 331 and a wrench 332. One end of the fixed part 331 is hingedly connected with the middle position of the wrench 332, and the other end of the fixed part 331 is provided with a first locking pin 333. One end of the wrench 332 is provided with a second locking pin 334, and the other end of the wrench 332 is a free end. Correspondingly, the upper end of the second fixed plate 32 is provided with a mounting hole 326, and the second locking pin 334 is hingedly connected with the second fixed plate 32 after passing through the mounting hole 326. The upper end of the first fixed plate 31 is provided with a hook 316, and the size of the hook 316 matches the size of the first locking pin 333, so that the hook 316 can be hung together with the first locking pin 333. As shown in Figure 7 When the first fixed plate 31 and the second fixed plate 32 are rotated to the innermost side in the direction of approaching each other, the fixed part 331 is hung together with the hook 316 and the first locking pin 333 under the driving of the wrench 332, so as to fix the first fixed plate 31 and the second fixed plate 32 relative to each other, and the first fixed plate 31 and the second fixed plate 32 cannot be rotated.

[0040] The locking device 33 further comprises a pinch 335, which has two edge strips at an obtuse angle. The pinch 335 is hingedly connected with the wrench 332 at the intersection of the two edge strips. The end of the lower end of the edge strip of the pinch 335 is provided with a hook 337, and the side wall of the safety lock shell 37 is provided with a clamping groove 372 matched with the hook 337. When the hook 337 is hooked with the clamping groove 372, the pinch 335 fixes the wrench 332, and at this time the wrench 332 cannot be rotated. The pinch 335 is further provided with a torsional spring 336, and the wrench 332 is provided with an abutting groove 338 corresponding to the installation position of the torsional spring 336. One end of the torsional spring 336 abuts with the abutting groove 338, and the other end of the torsional spring 336 abuts with the inner side surface of the free end of the pinch 335. When no external force is applied to the outside of the pinch 335, the hook 337 and the clamping groove 372 are kept in the clamping state under the elastic force of the torsional spring 336, and at this time the safety lock is in the locked state and cannot be replaced with the grip 1. When the free end of the pinch 335 is pressed downward, the hook 337 and the clamping groove 372 are disengaged, and the wrench 332 can be pulled upward to disconnect the fixed part 331 and the first fixed plate 31. At this time, the safety lock is in the disengaged state, and the grip 1 can be replaced.

[0041] The handle 1 comprises a handle tube and connecting plates 10 fixedly connected at both ends of the handle tube, the connecting plates 10 are sleeved outside the end of the handle tube and fixedly connected, when the handle tube is fixed between the first fixed plate 31 and the second fixed plate 32, the connecting plates 10 are accommodated between the front mounting plate 34 and the first fixed plate 31, the second fixed plate 32, preventing the handle tube from sliding out of the safety lock assembly 3. In order to meet different exercise needs, the handle tube comprises a straight handle tube 11 and a bent handle tube 12, the two ends of the straight handle tube 11 and the bent handle tube 12 are fixedly connected with the connecting plates 10 respectively. When different handles are needed, they can be quickly replaced through the safety lock assembly 3, which is convenient and safe.

[0042] The weight mounting assembly 2 comprises a rotating shaft 21, six cam mechanisms 22 are non-rotatably sleeved on the rotating shaft 21, and the six cam mechanisms 22 are used for hanging the weight plates 23. The cam mechanisms 22 of the weight mounting assemblies 2 on both sides are symmetrically arranged, the shapes and sizes of the two cam mechanisms 22 at the symmetric positions are the same, each pair of cam mechanisms 22 has a plurality of hanging portions 221 and avoiding portions 222 at different angles, each pair of hanging portions 221 is symmetrically arranged with the center of the cam mechanism 22 as the center, and each pair of avoiding portions 222 is symmetrically arranged with the center of the cam mechanism 22 as the center. When the hanging portion 221 is hung with the weight plate 23, the weight plate 23 is hung on the rotating shaft 21 through the cam mechanism 22. Each pair of cam mechanisms 22 has a plurality of pairs of hanging portions 221 and avoiding portions 222 at different angles, when different cam mechanisms 22 are sequentially sleeved on the rotating shaft 21, different angles of rotation can realize the hanging of different numbers of weight plates 23, so that the weight adjustment is realized.

[0043] The weight plate 23 is provided with an opening 231 for connecting the neck 226 in the middle, and the cam groove 232 is provided on one side surface of the weight plate 23 outside the opening 231, the upper edge of the cam groove 232 is provided with an open clamping port 233 for accommodating the cam mechanism 22 and realizing the hanging between the cam mechanism 22 and the weight plate 23. The cross section of the cam groove 232 is a partial circular structure greater than one half of a circle, the maximum diameter of the avoiding portion 222 of the cam mechanism 22 is less than the minimum width of the clamping port 233, when the avoiding portion 222 is located at the opening of the cam groove 232 and the cam mechanism 22 is lifted upward, the cam mechanism 22 is disengaged from the weight plate 23. The maximum diameter of each pair of hanging portions 221 of the cam mechanism 22 is greater than the minimum width of the clamping port 233, when a pair of hanging portions 221 is located at the clamping port 233 and the cam mechanism 22 is lifted upward, the cam mechanism 22 is clamped with the weight plate 23.

[0044] When the cam mechanism 22 on the rotating shaft 21 is connected to different numbers of weight pieces 23, the mutual friction between the cam mechanism 22 and the weight pieces 23 will cause wear of the weight pieces 23 and the cam mechanism 22, and when the wear is serious, the connection between the cam mechanism 22 and the weight pieces 23 will be unstable, and the weight pieces 23 will fall off. In order to reduce the wear phenomenon, further, the cam mechanism 22 further comprises a bearing layer 223 made of galvanized iron sheet, which is used to be connected to the weight pieces 23, and the two sides of the bearing layer 223 are respectively provided with wear-resistant layers 224 made of plastic material, which will not damage the surface of the weight pieces 23 when the wear-resistant layers 224 are rubbed with the weight pieces 23. The center position of the wear-resistant layer 224 on one side of the bearing layer 223 is fixedly connected or integrally formed with a connecting neck 226, and the free end of the connecting neck 226 is provided with a polygonal connecting protrusion 227; the wear-resistant layer 224 on the other side of the bearing layer 223 is provided with a connecting groove 228 matching the shape and size of the connecting protrusion 227, and when the connecting protrusion 227 at the free end of the connecting neck 226 of one cam mechanism 22 is connected with the connecting groove 228 of another cam mechanism 22, the connecting neck 226 will separate the two adjacent cam mechanisms 22 to form an installation space for installing the weight pieces 23.

[0045] The outer surface of the wear-resistant layer 224 on one side of the cam mechanism 22 provided with the connecting neck 226 is provided with a plurality of protrusions 225, which are in contact with the inside of the cam groove 232 when the connecting neck 226 of the cam mechanism 22 enters the weight piece 23 from the gap 231, and are used to prevent the friction between the bearing layer 223 and the weight piece 23; the protrusions 225 in the embodiment are not limited to protrusion structures, and can also be protruding strips, protruding circular rings and other structures capable of protruding from the outer surface of the wear-resistant layer 224. The depth of the cam groove 232 is less than the sum of the thicknesses of the bearing layer 223 of the cam mechanism 22 and the wear-resistant layers 225 on the two sides thereof, and when the cam mechanism 22 is located in the cam groove 232, the side of the cam mechanism 22 without the protrusions 225 is higher than the cam groove 232, which can effectively prevent the friction between the two weight pieces 23.

[0046] The application further discloses a base 4, and the two ends of the base 4 are respectively provided with a bottom support 41 for placing the weight pieces 23, and the upper surfaces of the two side bottom supports 41 are provided with two pairs of handle storage grooves 411 at the symmetrical positions, which are used to support the two ends of the handle 1 and store the handle 1, and facilitate the switching between different handles 1.

[0047] From the above description, it can be seen that the above-mentioned embodiments of the application achieve the following technical effects:

[0048] 1. The safety lock assembly 3 is arranged between the weight installation assembly 2 and the handle 1, which realizes the quick replacement of the handle 1, the replacement process is safe, the falling or tilting of the weight pieces 23 is avoided, and the use is safer.

[0049] 2. The safety lock assembly 3 is provided with a locking device 33, when the pinch handle 335 is pressed, the locking of the wrench 332 can be released, and then the position relationship between the first fixed plate 31 and the second fixed plate 32 is released through the wrench 332.

[0050] 3. The counterweight mounting assembly 2 is provided with multiple pairs of hanging parts and avoiding parts with different angles, by rotating the rotating shaft 21 by different angles, different numbers of counterweight plates 23 are hung, so that the weight is adjusted, the adjustment process is simple, convenient and very safe.

[0051] 4. The two sides of the cam mechanism 22 are provided with wear-resistant layers 224, which can effectively prevent the wear between the cam mechanism 22 and the counterweight plate 23.

[0052] 5. The upper part of the base 4 is provided with a handle storage groove 411, which is used for storing idle handles, and is convenient for arranging and storing.

[0053] Compared with the prior art, the multifunctional adjustable weight lifting device can safely and efficiently replace the handle, can safely and conveniently adjust the weight, and effectively prevents the wear between the cam mechanism and the counterweight plate, and at the same time, multiple handles can be stored at the same time, which is convenient to use and more durable.

[0054] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-functional adjustable weight lifting apparatus, characterized by, Comprise: A handle (1); Counterweight mounting assembly (2), the counterweight mounting assembly (2) comprises a rotating shaft (21) for mounting counterweight piece; Safety lock assembly (3), the safety lock assembly (3) is arranged between the handle (1) and the counterweight mounting assembly (2), one side of the safety lock assembly (3) is fixedly connected with the counterweight mounting assembly (2), and the end of the handle (1) is detachably clamped with the safety lock assembly (3); And Base (4); Wherein, the safety lock assembly (3) comprises: The first fixed plate (31) is provided with an open first fixed slot (314) in the middle position, and the lower end of the first fixed plate (31) is hinged with the counterweight mounting assembly (2); Second fixed plate (32), the second fixed plate (32) is provided with an open second fixed slot (324) in the middle position, the second fixed slot (324) is installed opposite to the first fixed slot (314), and the lower end of the second fixed plate (32) is limitingly hinged with the counterweight mounting assembly (2); And Locking device (33), the locking device (33) detachably connects and fixes the upper end of the first fixed plate (31) and the upper end of the second fixed plate (32); Wherein, when the first fixed slot (314) and the second fixed slot (324) are opposite, the shape formed by combination matches the shape of the handle pipe end of the handle (1); The upper end of the first fixed plate (31) and the upper end of the second fixed plate (32) are relatively inwardly tightened and clamped with the end of the handle (1), so as to limit the handle (1) on the safety lock assembly (3).

2. The multifunctional adjustable weight lifting equipment according to claim 1, wherein The two ends of the handle (1) are fixedly connected with a connecting plate (10), and when the end of the handle (1) is clamped with the safety lock assembly (3), the connecting plate (10) is limited in the safety lock assembly (3).

3. The multifunctional adjustable weight lifting equipment according to claim 1, wherein The locking device (33) comprises a fixing piece (331) and a wrench (332), one end of the fixing piece (331) is hinged with the middle position of the wrench (332), the other end of the fixing piece (331) is provided with a first lock pin (333), and one end of the wrench (332) is provided with a second lock pin (334); A hook (316) is arranged on the surface of the upper end of the first fixed plate (31), the size of the hook (316) matches the size of the first lock pin (333), so that the hook (316) can be hung together with the first lock pin (333); An installation hole (326) is arranged on the surface of the upper end of the second fixed plate (32), and the second lock pin (334) is sequentially threaded through the wrench (332) and the installation hole (326) to hinge the wrench (332) with the second fixed plate (32).

4. The multifunctional adjustable weight lifting equipment according to claim 3, characterized in that, the safety lock assembly (3) further comprises a safety lock housing (37), the first fixed plate (31) and the second fixed plate (32) are installed inside the safety lock housing (37), the edge of the safety lock housing (37) is provided with an open port (371), the upper end of the first fixed plate (31) and the second fixed plate (32) passes through the open port (371); the locking device (33) further comprises a handle (335), the handle (335) has two edges with an obtuse angle, the handle (335) is hinged to the wrench (332) at the intersection of the two edges, the end of the lower end of the handle (335) is provided with a hook (337), and a clamping groove (372) matched with the hook (337) is arranged on the side wall of the safety lock housing (37), and the wrench (332) cannot be rotated when the hook (337) is clamped with the clamping groove (372).

5. The multifunctional adjustable weight lifting equipment according to claim 4, characterized in that, a torsional spring (336) is further installed on the handle (335), the wrench (332) is provided with an abutting groove (338) corresponding to the installation position of the torsional spring (336), one end of the torsional spring (336) abuts against the abutting groove (338), and the other end of the torsional spring (336) abuts against the inner side surface of the free end of the handle (335).

6. The multifunctional adjustable weight lifting equipment according to claim 1, characterized in that, at least one cam mechanism (22) is non-rotatably sleeved on the rotating shaft (21) for hanging a weight plate (23); the cam mechanism (22) has a plurality of pairs of hanging portions (221) and avoiding portions (222) with different angles, the middle of the weight plate (23) is provided with an aperture (231) for accommodating the rotating shaft (21), the side surface of the weight plate (23) located outside the aperture (231) is provided with a cam groove (232), and the upper edge of the cam groove (232) is provided with an open clamping port (233) for accommodating the cam mechanism (22) and realizing the hanging connection between the cam mechanism (22) and the weight plate (23).

7. The multifunctional adjustable weight lifting equipment according to claim 6, characterized in that, the maximum diameter of each pair of the hanging portions (221) of the same cam mechanism (22) is greater than the minimum width of the clamping port (233), and the maximum diameter of each pair of the avoiding portions (222) is less than the minimum width of the clamping port (233).

8. The multifunctional adjustable weight lifting equipment according to claim 6, characterized in that, the cam mechanism (22) comprises a load bearing layer (223) for hanging the weight plate (23), and the load bearing layer (223) is provided with an anti-wear layer (224) on each side.

9. The multifunctional adjustable weight lifting equipment according to claim 8, characterized in that, The anti-abrasion layer (224) on one side of the load bearing layer (223) is fixedly connected or integrally formed with a connecting neck (226) at a central position, and the free end of the connecting neck (226) is provided with a polygonal connecting protrusion (227); the anti-abrasion layer (224) on the other side of the load bearing layer (223) is provided with a connecting groove (228) matching the shape and size of the connecting protrusion (227).

10. The multi-functional adjustable weight lifting equipment according to claim 1, wherein, Two end supports (41) are arranged at the two ends of the base (4), and two pairs of handle storage grooves (411) are arranged at the symmetrical positions of the upper surfaces of the two end supports (41) for supporting the two ends of the handle (1).

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