Arm strength device with length-adjustable arm of force

Abstract

The utility model provides an arm strength device with the length of a force arm adjustable, and aims to solve the problem that the strength of training of a user is fixed due to the fact that the length of the force arm of the arm strength device in the prior art is fixed and cannot be adjusted. The utility model discloses an arm strength device with a length-adjustable arm of force. Each force arm comprises a connecting rod connected with the arm force spring and a grab handle connected with the connecting rod in a sliding mode; and two groups of adjusting assemblies, each adjusting assembly comprises a first locking piece arranged on the grab handle in a sliding mode and a plurality of second locking pieces arranged on the connecting rod. The elastic piece is used for driving the first locking piece to slide towards the second locking piece and is locked with the first locking piece; the unlocking piece is used for driving the first locking piece and the second locking piece to be unlocked; and the first locking piece is locked with different second locking pieces to adjust and lock the length of the force arm. The arm of force is adjustable, so that a user can adjust the arm of force according to requirements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to body -building equipment technical field, concretely relates to an arm strength device with adjustable length of force arm. BACKGROUND

[0002] At present, people will generally choose to exercise in the gym or at home in order to improve physical fitness, and based on this, many kinds of body-building equipment for people to use in the gym or at home have appeared on the market. Among them, the arm strength device is the most popular indoor exercise body-building equipment, which has the characteristics of convenient use and strong practicality. The arm strength device in the prior art comprises an arm strength spring and force arms connected with both ends of the arm strength spring, in use, the user holds two force arms with both hands, and bends the arm strength spring by the strength of the arm to train the strength of the arm. However, the length of the force arm of the arm strength device is fixed and cannot be adjusted, and the strength of the user's training is fixed every time the user uses it, and when people need an arm strength device with greater strength after a period of exercise, they have to replace the arm strength device, thereby increasing the training cost of people. SUMMARY

[0003] The utility model provides an arm strength device with adjustable length of force arm, which aims at solving the problem that the length of the force arm of the arm strength device in the prior art is fixed and cannot be adjusted, resulting in that the strength of the user's training is fixed.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] An arm strength device with adjustable length of force arm, comprising:

[0006] An arm strength spring;

[0007] Two force arms, respectively arranged on the left and right sides of the arm strength spring, each of the force arms comprising a connecting rod connected with the arm strength spring and a handle slidingly connected with the connecting rod; and

[0008] Two groups of adjusting assemblies, respectively arranged on the two force arms; each of the adjusting assemblies comprising a first locking member slidingly arranged on the handle, a plurality of second locking members arranged on the connecting rod and arranged along the axial direction of the connecting rod, an elastic member arranged between the first locking member and the handle and used for driving the first locking member to slide towards the second locking members and be locked with the second locking members, and an unlocking member arranged on the handle and used for driving the first locking member and the second locking members to be unlocked; the length of the force arm is adjusted and locked by the first locking member locked with different second locking members.

[0009] Further scheme: the unlocking member is slidingly arranged on the handle, and the unlocking member comprises an unlocking position and a reset position.

[0010] When the unlocking member is pushed towards the first locking member, the unlocking member is switched from the reset position to the unlocking position and drives the first locking member to slide away from the second locking member, and the elastic member is compressed; when the unlocking member is released, under the reset action of the elastic member, the first locking member slides towards the second locking member and is locked therewith, and the first locking member drives the unlocking member to move from the unlocking position to the reset position.

[0011] Based on the above technical solution: the unlocking member is slidingly arranged on the handle, thereby facilitating the user to operate the unlocking member and adjusting the length of the force arm.

[0012] Further solution: the first locking member is provided with a first slope, and the unlocking member is provided with a second slope matched with the first slope; the second slope is located between the first slope and the second locking member.

[0013] When the unlocking member is pushed towards the first locking member, the unlocking member drives the first locking member to slide away from the second locking member through the cooperation of the second slope and the first slope, and the elastic member is compressed; when the unlocking member is released, under the reset action of the elastic member, the first locking member slides towards the second locking member and drives the unlocking member to reset through the cooperation of the first slope and the second slope.

[0014] Based on the above technical solution: by arranging the first slope on the first locking member and the second slope on the unlocking member, when it is necessary to adjust the length of the force arm, the unlocking member can be pushed towards the first locking member, so that the first locking member slides away from the second locking member, then the user releases the unlocking member after sliding the handle along the connecting rod towards or away from the arm spring, and when the user continues to drive the handle to slide relative to the connecting rod to the position of the next second locking member, under the reset action of the elastic member, the first locking member is automatically locked with the second locking member, and the unlocking member is automatically reset through the cooperation of the slopes, thereby making the user adjustment more convenient.

[0015] Further solution: the first slope includes a left first slope and a right first slope respectively located on the left and right sides of the first locking member, and the second slope includes a left second slope matched with the left first slope and a right second slope matched with the right first slope.

[0016] Based on the above technical solution: by arranging two first slopes and two second slopes, the unlocking member drives the first locking member to slide away from the second locking member on the left and right sides at the same time through the cooperation of the two second slopes and the two first slopes, and the left and right sides are balanced in force, thereby being more stable.

[0017] Further scheme: the first locking member is arranged on the handle in sliding mode along the up-down direction; and the unlocking member is arranged on the handle in sliding mode along the left-right direction.

[0018] Based on the above technical scheme: the arrangement facilitates the user to operate the unlocking member to perform the unlocking action.

[0019] Further scheme: the first locking member is provided with a limiting block, and the connecting rod is provided with a limiting slot extending along the axial direction of the connecting rod, and the limiting block is arranged in the limiting slot in sliding mode.

[0020] Based on the above technical scheme: by arranging the limiting block on the first locking member and the limiting slot on the connecting rod, the limiting block can cooperate with the limiting slot, which on one hand prevents the handle from rotating relative to the connecting rod, so that the user can better grasp the arm strength device when using it, and on the other hand, when adjusting the length of the force arm, the limiting block can only slide in the limiting slot, preventing the user from pulling the handle relative to the connecting rod too far to cause the two to disengage, so that the safety is higher when adjusting the length of the force arm.

[0021] Further scheme: the side of the limiting block close to the arm strength spring is provided with an inclined guide slope, which is arranged to gradually incline downward from the side close to the arm strength spring to the side away from the arm strength spring.

[0022] The side of the limiting block away from the arm strength spring is provided with an abutting surface extending in the vertical direction, and the side of the limiting slot away from the arm strength spring is provided with a blocking portion, which limits the handle from disengaging from the connecting rod along the axial direction of the connecting rod by abutting against the abutting surface.

[0023] Based on the above technical scheme: by arranging the guide slope on the limiting block, when assembling the handle and the connecting rod together, the guide slope abuts on the connecting rod to gradually slide upward into the handle, so that the handle can be smoothly sleeved on the connecting rod; by arranging the abutting surface on the limiting block, the abutting surface abuts on the blocking portion, so as to prevent the user from pulling the handle relative to the connecting rod too far to cause the two to disengage, so that the safety is higher.

[0024] Further scheme: the first locking member is provided with a positioning pin, and the second locking member is a positioning hole arranged on the connecting rod, and the positioning pin adjusts and locks the length of the force arm by being inserted into different positioning holes.

[0025] Further scheme: the plurality of positioning holes are in communication with the limiting slot.

[0026] Based on the above technical scheme: the arrangement facilitates the machining and manufacturing.

[0027] Further, the handle is provided with a mounting slot, and the mounting slot is provided with a first guide hole for the limiting block to slide through and a second guide hole for the positioning pin to slide through on the bottom wall of the connecting rod;

[0028] The first locking member is slidingly arranged in the second guide hole, the unlocking member is slidingly arranged in the mounting slot in a direction parallel to the axis direction of the connecting rod, and the elastic member is located between the top wall of the mounting slot and the first locking member.

[0029] Further, the unlocking member is provided with a pushing part exposed to the mounting slot.

[0030] The utility model discloses beneficial effects are:

[0031] The utility model discloses a force arm length adjustable arm strength device, which comprises a connecting rod and a handle connected with the connecting rod in a sliding mode, wherein the connecting rod is connected with an arm force spring, and the handle is connected with the connecting rod in a sliding mode. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment, and should understand, the following drawing only shows some certain embodiment of the utility model, therefore should not be regarded as the limited scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0033] Figure 1 It is the structure schematic diagram of the utility model discloses a kind of arm strength device of force arm length adjustable.

[0034] Figure 2 It is the structure schematic diagram of the utility model discloses a kind of arm strength device of force arm length adjustable.

[0035] Figure 3 It is Figure 2An enlarged structural schematic view at A.

[0036] Figure 4 An exploded structural schematic view of the adjusting assembly, the handle and the connecting rod.

[0037] Figure 5 A structural schematic view of the first locking member.

[0038] Figure 6 A structural schematic view of the unlocking member.

[0039] Figure 7 A structural schematic view of the mounting slot.

[0040] Figure 8 A structural schematic view of the unlocking member cooperating with the first locking member.

[0041] Explanation of reference numerals in the drawings:

[0042] 1 - arm force spring; 2 - connecting rod; 21 - limiting slot; 22 - positioning hole; 3 - handle; 31 - mounting slot; 311 - slot cover; 312 - first guide slot; 313 - second guide slot; 314 - first guide hole; 315 - second guide hole; 316 - second spring seat; 4 - first locking member; 41 - first slope; 411 - left first slope; 412 - right first slope; 42 - positioning pin; 43 - limiting block; 44 - first guide part; 45 - first spring seat; 5 - unlocking member; 51 - second slope; 511 - left second slope; 512 - right second slope; 52 - pushing part; 53 - second guide part; 6 - spring. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0044] As shown in Figures 1 to 3 the embodiment, the arm force device with adjustable arm length comprises:

[0045] an arm force spring 1;

[0046] two arm forces, which are arranged on the left and right sides of the arm force spring 1 respectively, each of the arm forces comprises a connecting rod 2 connected with the arm force spring 1 and a handle 3 slidably connected with the connecting rod 2; and

[0047] Two sets of adjusting assemblies are arranged on the two force arms respectively; each set of the adjusting assemblies comprises a first locking member 4 slidingly arranged on the handle 3, a plurality of second locking members arranged on the connecting rod 2 and arranged along the axial direction of the connecting rod 2, an elastic member arranged between the first locking member 4 and the handle 3 and used for driving the first locking member 4 to slide towards the second locking members and to be locked with the second locking members, and an unlocking member 5 arranged on the handle 3 and used for driving the first locking member 4 to be unlocked with the second locking members; the first locking member 4 adjusts and locks the length of the force arm by being locked with different second locking members.

[0048] The unlocking member 5 is slidingly arranged on the handle 3, and the unlocking member 5 comprises an unlocking position and a reset position.

[0049] When the unlocking member 5 is pushed towards the first locking member 4, the unlocking member 5 is switched from the reset position to the unlocking position and drives the first locking member 4 to slide away from the second locking members, and the elastic member is compressed; when the unlocking member 5 is released, the first locking member 4 slides towards the second locking members and is locked with the second locking members under the reset action of the elastic member, and the first locking member 4 drives the unlocking member 5 to move from the unlocking position to the reset position.

[0050] Specifically, when the length of the force arm is adjusted, the user operates the unlocking member 5 to drive the first locking member 4 to slide away from the connecting rod 2 and to be unlocked with the second locking members, at this time, the elastic member is compressed, then the handle 3 is driven to slide along the connecting rod 2 to approach or to be away from the arm force spring 1 to the position of the next second locking member, and the unlocking member 5 is released, then the first locking member 4 slides towards the second locking members and is locked with the second locking members under the reset action of the elastic member, so as to fix the length of the force arm.

[0051] In some specific embodiments, as shown in Figures 3 to 8 The first locking member 4 is provided with a first slope 41, and the unlocking member 5 is provided with a second slope 51 matched with the first slope 41; the second slope 51 is located between the first slope 41 and the second locking members.

[0052] When the unlocking member 5 is pushed towards the first locking member 4, the unlocking member 5 drives the first locking member 4 to slide off the second locking member by the cooperation of the second slope 51 and the first slope 41, and the elastic member is compressed; when the unlocking member 5 is released, the first locking member 4 slides towards the connecting rod 2 and drives the unlocking member 5 to reset by the cooperation of the first slope 41 and the second slope 51 under the resetting action of the elastic member. Specifically, when the length of the force arm needs to be adjusted, the unlocking member 5 is pushed towards the first locking member 4, the unlocking member 5 slides off the second locking member by the cooperation of the second slope 51 and the first slope 41, then the user releases the unlocking member 5 after sliding the handle 3 along the connecting rod 2 towards or away from the arm force spring 1, then the user continues to slide the handle 3 relative to the connecting rod 2 to the position of the adjacent next second locking member, then the first locking member 4 slides towards the second locking member under the resetting action of the elastic member, and the unlocking member 5 is automatically reset by the cooperation of the first slope 41 and the second slope 51, while the first locking member 4 is automatically locked with the second locking member.

[0053] In some embodiments, as shown in

[0054] In some embodiments, as shown in Figures 3 to 8 In order to make the unlocking member 5 cooperate with the first locking member 4 more balanced and stable, the first slope 41 includes a left first slope 411 and a right first slope 412 respectively located on the left and right sides of the first locking member 4, and the second slope 51 includes a left second slope 511 cooperating with the left first slope 411 and a right second slope 512 cooperating with the right first slope 412. Specifically, when the unlocking member 5 is pushed towards the first locking member 4, the unlocking member 5 drives the first locking member 4 to slide off the second locking member by the cooperation of the two second slopes 51 and the two first slopes 41, so that the left and right sides of the first locking member 4 are forced at the same time, thereby driving the first locking member 4 to slide off the second locking member upward in a balanced and stable manner.

[0055] In some embodiments, as shown in Figure 4 and Figure 6 In order to avoid the handle 3 from sliding off the connecting rod 2 when the user adjusts the length of the force arm, the first locking member 4 is provided with a limiting block 43, and the connecting rod 2 is provided with a limiting groove 21 extending along the axial direction of the connecting rod 2, and the limiting block 43 is slidingly arranged in the limiting groove 21. Specifically, the limiting block 43 is located in the limiting groove 21, which can prevent the handle 3 from rotating relative to the connecting rod 2, and when the length of the force arm is adjusted, the limiting block 43 can only slide in the limiting groove 21, preventing the handle 3 from being pulled too far relative to the connecting rod 2 and causing them to separate.

[0056] In order to prevent the handle 3 from rotating relative to the connecting rod 2, the handle 3 can be sleeved on the connecting rod 2 and the two are matched in a non-circular shape.

[0057] In some embodiments, as shown in Figure 4 and Figure 6 In order to facilitate the assembly of the force arm, the limiting block 43 is provided with an inclined guide slope on one side of the arm force spring 1, which is gradually inclined downward from the side close to the arm force spring 1 to the side away from the arm force spring 1. Specifically, when the handle 3 and the connecting rod 2 are assembled together, the handle 3 is sleeved on the connecting rod 2 and is pushed along the connecting rod 2 towards the arm force spring 1, in the process, the guide slope is abutted on the connecting rod 2 to gradually slide upward into the handle 3 and make the elastic member be compressed, thereby facilitating the handle 3 to be smoothly sleeved on the connecting rod 2, when sliding to the position of the limiting groove 21, the limiting block 43 enters the limiting groove 21 under the action of the elastic member.

[0058] The side of the limiting block 43 away from the arm force spring 1 is provided with an abutting surface extending in the vertical direction, and the side of the limiting groove 21 away from the arm force spring 1 is provided with a blocking portion, which limits the handle 3 from being separated from the connecting rod 2 along the axial direction of the connecting rod 2 by abutting with the abutting surface.

[0059] In some embodiments, as shown in Figure 3 and Figure 6 The first locking member 4 is provided with a positioning pin 42, and the second locking member is a positioning hole 22 provided on the connecting rod 2, the positioning pin 42 is inserted into different positioning holes 22 to adjust and lock the length of the force arm; the end of the positioning pin 42 close to the positioning hole 22 can be provided in a hemispherical shape, thereby facilitating assembly;

[0060] In order to facilitate installation, the plurality of positioning holes 22 are in communication with the limiting groove 21, specifically, the diameters of the plurality of positioning holes 22 are greater than the diameter of the limiting groove 21, and the plurality of positioning holes 22 are arranged along the axial direction of the connecting rod 2.

[0061] In some embodiments, as shown in Figure 3 and Figure 7 The handle 3 is provided with a mounting groove 31, and the mounting groove 31 is provided with a first guide hole 314 for the limiting block 43 to slide through and a second guide hole 315 for the positioning pin 42 to slide through on the bottom wall close to the connecting rod 2;

[0062] The first locking member 4 is slidingly arranged in the second guide hole 315, and the unlocking member 5 is slidingly arranged in the mounting groove 31 in a direction parallel to the axis direction of the connecting rod 2; the elastic member is located between the top wall of the mounting groove 31 and the first locking member 4; specifically, the mounting groove 31 is provided with a groove cover 311, and the groove cover 311 is the top wall of the mounting groove 31.

[0063] In order to make the first locking member 4 more balanced and stable when sliding up and down in the mounting groove 31, the side wall of the mounting groove 31 is provided with a first guide groove 312 extending in the sliding direction of the first locking member 4, and the first guide groove 312 can extend in the up-down direction, and the first locking member 4 is provided with a first guide portion 44 slidingly arranged in the first guide groove 312. Specifically, the front and rear side walls of the mounting groove 31 are each provided with a first guide groove 312, and the first locking member 4 is provided with two first guide portions 44, and the two first guide portions 44 slide along the two first guide grooves 312, respectively.

[0064] In some embodiments, as shown in Figures 3 to 7 In order to facilitate user operation, the unlocking member 5 is provided with a pushing portion 52 exposing the mounting groove 31. The unlocking member 5 is provided with a second guide portion 53, the side wall of the mounting groove 31 is provided with a second guide groove 313 extending in the left-right direction, and the second guide portion 53 is slidingly arranged in the second guide groove 313. Specifically, the front and rear side walls of the mounting groove 31 are each provided with a second guide groove 313, and the unlocking member 5 is provided with two second guide portions 53, and the two second guide portions 53 slide along the two second guide grooves 313, respectively.

[0065] In some embodiments, the elastic member is a spring 6, the first locking member 4 is provided with a first spring seat 45, the groove cover 311 on the top of the mounting groove 31 is provided with a second spring seat 316, and the spring 6 is located between the first spring seat 45 and the second spring seat 316.

[0066] Working principle:

[0067] When the length of the force arm needs to be adjusted, the user pushes the unlocking member 5 towards the first locking member 4, the unlocking member 5 slides relative to the first slope 41 and the second slope 51, so that the first locking member 4 slides away from the second locking member, then the user releases the unlocking member 5 after sliding the handle 3 along the connecting rod 2 towards or away from the arm force spring 1, then the user continues to drive the handle 3 to slide relative to the connecting rod 2 to the position of the adjacent next second locking member, then under the reset action of the elastic member, the first locking member 4 slides towards the connecting rod 2, and drives the unlocking member 5 to automatically reset through the slope cooperation of the first slope 41 and the second slope 51, and the first locking member 4 is automatically locked with the second locking member, so as to fix the length of the force arm.

[0068] The utility model is not limited to the above optional implementation, and the schemes can be combined arbitrarily on the premise of not being contradictory; anyone can derive other various forms of products under the enlightenment of the utility model, but no matter any change in shape or structure, any technical scheme falling within the scope defined by the claims of the utility model falls within the protection scope of the utility model.

Claims

1. A force arm length adjustable arm exerciser, characterized by, The utility model provides a kind of arm strength spring, two force arms, two groups of adjusting components, first locking piece, second locking piece, elastic piece and unlocking piece. The utility model discloses an arm strength spring, two force arms, two groups of adjusting components, first locking piece, second locking piece, elastic piece and unlocking piece. The first locking piece is adjusted and locked by locking with different second locking pieces. The unlocking piece is slidably arranged on the handle, and the unlocking piece includes unlocking position and reset position. When the unlocking piece is pushed towards the first locking piece, the unlocking piece is switched from reset position to unlocking position and drives the first locking piece to slide away from the second locking piece, and the elastic piece is compressed.

2. The adjustable lever length arm exerciser of claim 1, wherein, When the unlocking piece is released, the first locking piece slides towards the second locking piece and is locked with the second locking piece under the reset action of the elastic piece, and the first locking piece drives the unlocking piece to move from unlocking position to reset position. The first locking piece is provided with first slope, and the unlocking piece is provided with second slope matched with the first slope. When the unlocking piece is pushed towards the first locking piece, the unlocking piece drives the first locking piece to slide away from the second locking piece through the cooperation of second slope and first slope, and the elastic piece is compressed.

3. The adjustable lever length arm exerciser of claim 2, wherein, When the unlocking piece is released, the first locking piece slides towards the second locking piece and drives the unlocking piece to reset through the cooperation of first slope and second slope under the reset action of the elastic piece. The first slope includes left first slope and right first slope respectively located at left and right sides of the first locking piece, and the second slope includes left second slope matched with the left first slope and right second slope matched with the right first slope.

4. The adjustable lever length arm exerciser of claim 3, wherein, The first locking piece is slidably arranged on the handle in up-down direction, and the unlocking piece is slidably arranged on the handle in left-right direction.

5. The adjustable lever length arm exerciser of claim 4, wherein, The first locking piece is provided with limiting block, and the connecting rod is provided with limiting slot extending in the axial direction of the connecting rod, and the limiting block is slidably arranged in the limiting slot.

6. The adjustable lever length arm strengthener of claim 1, wherein, The side of the limiting block close to the arm strength spring is provided with inclined guide slope, which is gradually inclined downward from the side close to the arm strength spring to the side away from the arm strength spring.

7. The adjustable lever length arm exerciser of claim 6 wherein, The side of the limiting block away from the arm strength spring is provided with abutting surface extending in vertical direction, and the limiting slot away from the arm strength spring is provided with blocking part, and the blocking part limits the handle from being separated from the connecting rod in the axial direction of the connecting rod by abutting with the abutting surface. ​ 8. The adjustable lever length arm strengthener of claim 6, wherein, The first locking member is provided with a positioning pin, the second locking member is a positioning hole arranged on the connecting rod, and the positioning pin is inserted into different positioning holes to adjust and lock the length of the force arm; The positioning holes are all communicated with the limiting grooves.

9. The adjustable lever length arm exerciser of claim 8, wherein, The handle is provided with a mounting groove, the mounting groove is provided with a first guide hole for the sliding of the limiting block and a second guide hole for the sliding of the positioning pin on the bottom wall of the connecting rod; The first locking member is slidingly arranged in the second guide hole, the unlocking member is slidingly arranged in the mounting groove in a direction parallel to the axis direction of the connecting rod, and the elastic member is located between the top wall of the mounting groove and the first locking member.

10. The adjustable lever length arm exerciser of claim 9, wherein, The unlocking member is provided with a pushing portion exposed from the mounting groove.

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