Pull-up trainer

Abstract

The utility model discloses a pull-up trainer, which relates to the field of fitness equipment, is used for solving the problem that a support rod of the existing trainer is not stable and convenient to store, and comprises a rack, the support rod and a locking mechanism, and the rack comprises a lifting frame; the supporting rod is rotatably connected with the lifting frame through a pivot, and the supporting rod is provided with a positioning hole; the locking mechanism comprises a sleeve, a plug, a lock rod, an elastic piece and a handle, the sleeve is fixedly connected with the lifting frame, the plug is fixed to one end of the sleeve, the lock rod movably penetrates through the sleeve and the plug, a limiting part is arranged at one end of the lock rod, the other end of the lock rod is connected with the handle, and the elastic piece is located in the sleeve and located between the plug and the limiting part; when the supporting rod is located at the storage position, the locking rod is opposite to the positioning hole in position, and the locking rod is driven by the elastic piece to extend into the positioning hole so as to prevent the supporting rod from rotating. The pull-up trainer can improve the stability of the supporting rod in the storage state and the convenience of state switching, and has the advantage of being convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a pull-up training device. Background Art

[0002] A pull-up trainer is a fitness equipment specially designed for pull-up training. It usually consists of a horizontal bar and an adjustable support system, which can help users do pull-up training at home or in the gym, thereby exercising muscle groups such as the back and upper limbs. Among them, the support system usually includes a support rod and a pedal fixed on the support rod for people to step on.

[0003] In the related art, the support rod is pivotally connected to the frame and is stored or unfolded for use by rotating relative to the frame. In the stored state, the support rod is usually fixed to the frame by a tight connection or a snap-on method, which results in an inconvenient switching state, or the support rod is just leaning on the frame, which results in an instability problem.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The utility model provides a pull-up training device, which at least solves the technical problem of how to improve the stability of the support rod in the storage state and the convenience of switching states.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A pull-up training device, comprising:

[0010] A frame, the frame comprising a guide rod and a lifting frame, the guide rod extending vertically, the lifting frame having a sleeve hole and being movably sleeved on the outer side of the guide rod through the sleeve hole, and the lifting frame being connected to the counterweight device through a pull rope and a pulley block;

[0011] A support rod, one end of which is rotatably connected to the lifting frame via a pivot, and the other end of which is provided with a pedal, and the support rod is provided with a positioning hole;

[0012] The locking mechanism comprises a sleeve, a plug, a locking rod, an elastic member and a handle, wherein the sleeve is fixedly connected to the lifting frame, the plug is fixed to one end of the sleeve, the locking rod is movably arranged inside the sleeve and the plug, and both ends are exposed, one end of the locking rod is provided with a limiting portion, and the other end is connected to the handle, and the elastic member is located inside the sleeve and between the plug and the limiting portion;

[0013] Wherein, when the support rod is located at the storage position, the locking rod is opposite to the positioning hole and extends into the positioning hole under the driving of the elastic member to prevent the support rod from rotating.

[0014] In some embodiments, a transition slope is provided on the periphery of the positioning hole, and the transition slope is used to push the locking rod to move toward the inside of the sleeve when the support rod is rotated and stored, so that the positioning hole can be positioned opposite to the locking rod.

[0015] In some embodiments, the lifting frame is provided with a support plate and ear plates fixed on opposite sides of the support plate; the support rod is connected between the ear plates by pivoting, and the sleeve is fixed on one of the ear plates; when the support rod is in the working position, the support rod rests against the upper end of the support plate.

[0016] In some embodiments, a positioning piece is detachably provided on the support rod, and the positioning hole is provided on the positioning piece.

[0017] In some embodiments, a positioning plate is provided on the support rod, the positioning plate is slidably connected to the support rod, and is provided with the positioning hole and a clearance opening connected to the positioning hole, and the clearance opening extends to the outside of the positioning plate; when the support rod is in the storage position, the positioning plate can slide relative to the support rod so that the locking rod is disengaged from the clearance opening from the positioning hole to cancel the prevention of the support rod from rotating.

[0018] In some embodiments, the support rod is provided with a sliding groove, the positioning piece is provided with a sliding block, and is slidably connected to the support rod via the sliding block and the sliding groove.

[0019] In some embodiments, the positioning piece is provided with a push-twist or control mechanism for controlling the sliding of the positioning piece relative to the support rod.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the pull-up training device provided by the utility model has the following beneficial effects:

[0022] When the pull-up trainer is working, the user steps on the pedal of the support rod, so that the support rod pushes the lifting frame to move on the guide rod. In this process, the configuration device provides the resistance required for exercise through the pull rope, thereby achieving the effect of auxiliary exercise; wherein, the support rod can be fixed on the frame by a locking mechanism, so as to achieve storage. Specifically, when the support rod is in the storage position, the locking rod is opposite to the positioning hole, and is driven by the elastic member to extend into the positioning hole to prevent the support rod from rotating, so as to achieve fixation; when switching the storage or working state, in terms of operation, the user only needs to pull the locking rod through the handle so that the locking rod cancels the restriction on the rotation of the support rod and controls the rotation of the support rod. It can be seen that the pull-up trainer of the utility model can improve the stability of the support rod in the storage state and the convenience of switching the state, and has the advantage of being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereoscopic diagram of the pull-up trainer in the working state in the embodiment.

[0024] Figure 2 It is a three-dimensional diagram of the pull-up trainer in the storage state in the embodiment.

[0025] Figure 3 for Figure 2 Schematic diagram of area A in center.

[0026] Figure 4 for Figure 3 sectional view of .

[0027] Figure 5 It is a stereoscopic diagram of the positioning piece in the embodiment controlled by pushing and twisting.

[0028] Figure 6 Schematic diagram of the positioning piece being controlled by the control mechanism in the embodiment.

[0029] Reference numerals:

[0030] Frame 1, guide rod 11, lifting frame 12, support plate 121, ear plate 122,

[0031] Support rod 2, positioning hole 20, pedal 21, transition slope 22, positioning piece 23, clearance opening 24, slide groove 201, slider 202, push knob 203, knob 204, gear 205, rack 206;

[0032] Locking mechanism 3, sleeve 31, plug 32, locking rod 33, elastic member 34, handle 35, limiting part 301;

[0033] Pull rope 4, pulley block 5, counterweight device 6. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] In the related art, when the support rod is in the storage state, it is usually fixed to the frame by a tight connection or a buckle, which causes the problem of inconvenient switching state, or it is just leaning on the frame, which causes the problem of instability.

[0036] In order to solve the above technical problems, this embodiment provides a pull-up training device, please refer to Figures 1 to 4 As shown, Figure 1 is a stereoscopic diagram of the pull-up training device in the working state in the embodiment, Figure 2 is a three-dimensional diagram of the pull-up training device in the storage state in the embodiment, Figure 3 for Figure 2 Schematic diagram of area A in the middle. Figure 4 for Figure 3 sectional view of .

[0037] A pull-up training device of this embodiment, such as Figure 1 and Figure 2 As shown, it includes: a frame 1, a support rod 2 and a locking mechanism 3.

[0038] The frame 1 includes a guide rod 11 and a lifting frame 12. The guide rod 11 extends vertically. The lifting frame 12 is provided with a sleeve hole and is movably sleeved on the outside of the guide rod 11 through the sleeve hole. The lifting frame 12 is connected to the counterweight device 6 through a pull rope 4 and a pulley block 5. It can be understood that the guide rod 11 is fixed relative to the ground and is used to guide the vertical movement of the lifting frame 12. The structures of the pull rope 4, the pulley block 5 and the configuration device and the matching method therebetween are prior arts and will not be repeated here.

[0039] One end of the support rod 2 is rotatably connected to the lifting frame 12 through a pivot, and the other end is provided with a pedal 21. The support rod 2 is provided with a positioning hole 20; wherein, the structure of the pedal 21 and the connection method with the support rod 2 can use existing technology.

[0040] like Figure 3 and Figure 4 As shown, the locking mechanism 3 includes a sleeve 31, a plug 32, a locking rod 33, an elastic member 34 and a handle 35. The sleeve 31 is fixedly connected to the lifting frame 12, the plug 32 is fixed at one end of the sleeve 31, the locking rod 33 is movably arranged inside the sleeve 31 and the plug 32, and both ends are exposed. A limiting portion 301 is provided at one end of the locking rod 33, and the other end is connected to the handle 35. The elastic member 34 is located inside the sleeve 31 and between the plug 32 and the limiting portion 301; wherein, when the support rod 2 is in the storage position, the locking rod 33 is opposite to the positioning hole 20, and extends into the positioning hole 20 under the drive of the elastic member 34 to prevent the support rod 2 from rotating.

[0041] The pull-up trainer of the above technical solution is intended to enhance the user's training experience and the convenience of using the equipment. When training, the user steps on the pedal 21 of the support rod 2 to drive the lifting frame 12 to slide along the guide rod 11. At the same time, the pull rope 4 in the counterweight device 6 provides appropriate exercise resistance to assist the user in exercising. Among them, the trainer realizes the storage and quick locking mechanism of the support rod 2 through the locking mechanism 3: in the storage state, the support rod 2 is firmly locked with the assistance of the elastic member 34 through the precise cooperation between the locking rod 33 and the positioning hole 20, effectively preventing accidental rotation and ensuring the stability and safety of the equipment when not in use; and when it is necessary to switch to the working state, the user only needs to pull the handle 35 with one hand and turn the support rod 2 with the other hand to unlock the support rod 2 and rotate it to the use position. The whole process does not require complicated operations, which improves the convenience of state switching.

[0042] In order to facilitate the switch of the support rod 2 from the use state to the working state, refer to Figure 3 As shown, a transition slope 22 is provided on the periphery of the positioning hole 20 , and the transition slope 22 is used to push the locking rod 33 to move toward the inside of the sleeve 31 when the support rod 2 is rotated and stored, so that the positioning hole 20 can be positioned opposite to the locking rod 33 .

[0043] For example, see Figure 3 As shown, the transition slope 22 is an arc surface.

[0044] In one embodiment of the support rod 2, one end is rotatably connected to the lifting frame 12 via a pivot. Figure 3 As shown, the lifting frame 12 is provided with a support plate 121 and ear plates 122 fixed on opposite sides of the support plate 121. The ear plates 122 and the support plate 121 can be an integral structure and welded to the front end of the supporting lifting frame 12; the support rod 2 is connected between the ear plates 122 by pivoting, and the sleeve 31 is fixed on one of the ear plates 122; when the support rod 2 is in the working position, the support rod 2 rests on the upper end of the support plate 121, thereby transferring the weighing to the lifting frame 12.

[0045] For example, see Figure 3 As shown, the sleeve 31 is fixed on the left or right ear plate 122 and can be set according to the user's dominant hand, such as being set on the right ear plate 122 to facilitate right-handed users to operate the locking mechanism 3.

[0046] In one embodiment of the elastic member 34, see Figure 4 As shown, the elastic member 34 is a compression spring and is sleeved on the locking rod 33 , with one end of the elastic member 34 abutting against the limiting portion 301 and the other end abutting against the plug 32 .

[0047] Exemplarily, the plug 32 and the sleeve 31 are fixed by a tight connection or a threaded connection.

[0048] Exemplarily, the limiting portion 301 is integrally formed on the locking rod 33 , or the limiting portion 301 is a threaded ring and is connected to the external thread of the locking rod 33 via an internal thread.

[0049] Since the positioning hole 20 is directly set on the support rod 2, it is easy to damage the support rod 2 after a long time, affecting its structural strength. Figure 3 and Figure 4 As shown, a positioning piece 23 is detachably provided on the support rod 2 , and a positioning hole 20 is provided on the positioning piece 23 .

[0050] Exemplarily, the positioning piece 23 is fixed to the support rod 2 by screws.

[0051] Exemplarily, the positioning piece 23 is provided with the above-mentioned transition slope 22 .

[0052] To enable one-handed operation of the support bar 2, see Figure 5 and Figure 6 As shown, Figure 5 This is a three-dimensional diagram of the positioning piece in the embodiment being controlled by pushing and twisting. Figure 6 It is a schematic diagram of the positioning piece in the embodiment being controlled by the control mechanism to realize state switching. A positioning piece 23 is provided on the support rod 2, and the positioning piece 23 is slidably connected to the support rod 2, and is provided with a positioning hole 20 and a clearance opening 24 connected to the positioning hole 20, and the clearance opening 24 extends to the outside of the positioning piece 23; when the support rod 2 is in the storage position, the user can control the positioning piece 23 to slide relative to the support rod 2 with one hand, so that the locking rod 33 is disengaged from the positioning hole 20 from the clearance opening 24 to cancel the prevention of the support rod 2 from rotating, and then rotate the support rod 2 to the working position by the same hand to complete the state switching.

[0053] For example, see Figure 5 and Figure 6 As shown, the sliding connection between the support rod 2 and the positioning piece 23 is achieved in the following manner: a sliding groove 201 is provided on the support rod 2, a slider 202 is provided on the positioning piece 23, and is slidingly connected to the support rod 2 through the slider 202 and the sliding groove 201, wherein the cross-sectional shape of the slider 202 and the sliding groove 201 can be a dovetail shape to prevent the slider 202 from detaching from the sliding groove 201.

[0054] In order to facilitate the user to control the sliding of the positioning piece 23, refer to Figure 5 and Figure 6 As shown, the positioning piece 23 is provided with a push-button 203 or a control mechanism for controlling the positioning piece 23 to slide relative to the support rod 2 .

[0055] For example, see Figure 6As shown, the control mechanism includes a knob 204, a gear 205 and a rack 206. The knob 204 is rotatably connected to the support rod 2. The gear 205 and the rack 206 are located inside the support rod 2. The gear 205 is connected to the knob 204 and rotates synchronously. The rack 206 is slidably arranged on the slide rail inside the support rod 2 and is connected to the slider 202. When working, the user rotates the knob 204, the knob 204 drives the gear 205 to rotate, the gear 205 drives the rack 206 to move, and the rack 206 then drives the slider 202 to slide on the slide groove 201, so that the positioning hole 20 is separated from the locking rod 33 from the yielding opening 24.

[0056] In order to ensure that the positioning piece 23 can automatically return to its initial position after the state of the support rod 2 is switched, a return spring is provided between the positioning piece 23 and the support rod 2, or a return torsion spring is provided on the knob 204. The return spring or the return torsion spring has an elastic force that allows the positioning piece 23 to return to its initial position after sliding.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pull-up training device, characterized in that: include: A frame, the frame comprising a guide rod and a lifting frame, the guide rod extending vertically, the lifting frame having a sleeve hole and being movably sleeved on the outer side of the guide rod through the sleeve hole, and the lifting frame being connected to the counterweight device through a pull rope and a pulley block; A support rod, one end of which is rotatably connected to the lifting frame via a pivot, and the other end of which is provided with a pedal, and the support rod is provided with a positioning hole; The locking mechanism comprises a sleeve, a plug, a locking rod, an elastic member and a handle, wherein the sleeve is fixedly connected to the lifting frame, the plug is fixed to one end of the sleeve, the locking rod is movably arranged inside the sleeve and the plug, and both ends are exposed, one end of the locking rod is provided with a limiting portion, and the other end is connected to the handle, and the elastic member is located inside the sleeve and between the plug and the limiting portion; Wherein, when the support rod is located at the storage position, the locking rod is opposite to the positioning hole and extends into the positioning hole under the driving of the elastic member to prevent the support rod from rotating.

2. The pull-up training device according to claim 1, characterized in that: A transition slope is provided on the periphery of the positioning hole, and the transition slope is used to push the locking rod to move toward the inside of the sleeve when the support rod is rotated and stored, so that the positioning hole can be positioned opposite to the locking rod.

3. The pull-up training device according to claim 1, characterized in that: The lifting frame is provided with a support plate and ear plates fixed on opposite sides of the support plate; The support rod is connected between the ear plates by pivoting, and the sleeve is fixed on one of the ear plates; When the support rod is located at the working position, the support rod abuts against the upper end of the support plate.

4. The pull-up training device according to claim 1, characterized in that: The support rod is detachably provided with a positioning piece, and the positioning piece is provided with the positioning hole.

5. The pull-up training device according to claim 1, characterized in that: The support rod is provided with a positioning piece, the positioning piece is slidably connected to the support rod, and is provided with the positioning hole and a clearance opening communicated with the positioning hole, and the clearance opening extends to the outside of the positioning piece; When the support rod is located at the storage position, the positioning piece can slide relative to the support rod so that the locking rod is separated from the positioning hole from the clearance opening, thereby eliminating the prevention of the support rod from rotating.

6. The pull-up training device according to claim 5, characterized in that: The support rod is provided with a sliding groove, and the positioning piece is provided with a sliding block, and is slidably connected with the support rod through the sliding block and the sliding groove.

7. The pull-up training device according to claim 6, characterized in that: The positioning piece is provided with a push-twist or control mechanism for controlling the sliding of the positioning piece relative to the support rod.

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