CN210813706U

CN210813706U - Folding handrail of treadmill

Info

Publication number: CN210813706U
Application number: CN201921305720.3U
Authority: CN
Inventors: 郎旭宝; 惠玉忠; 孙兆娟
Original assignee: Jinan Yibang Industry Co ltd
Current assignee: Jinan Yibang Industry Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-06-23
Anticipated expiration: 2029-08-13

Abstract

A handrail supporting seat is fixedly arranged at the top of a force arm, a handrail connecting piece is fixedly arranged on the handrail, the handrail connecting piece and the handrail supporting seat are connected together in a relatively pivoting mode through a rotating shaft, and a locking block and a blocking shaft which are matched with each other are arranged between the handrail connecting piece and the handrail supporting seat to achieve positioning and locking of the handrail connecting piece relative to the handrail supporting seat.

Description

Folding handrail of treadmill

Technical Field

The utility model relates to a treadmill especially relates to a folding handrail of treadmill.

Background

Most of the handrails of the treadmill used in the current market can not be folded, and when the treadmill is stored, the handrail still occupies a large space; when in packaging, the handrail needs to be detached, the whole machine packaging cannot be realized, the installation-free effect cannot be realized, and the after-sale cost is high.

Foldable treadmill handrails are also available in the market in recent two years, namely, the treadmill handrails are locked by screws, and the treadmill handrails are troublesome and labor-consuming to operate. Still another is that the armrest may be rotated to fold upward. It is safe for a user to apply a downward force to the armrest during use, and the armrest may be pushed in danger if a force in the direction of rotation is applied by mistake. Such design disadvantages are: has potential safety hazard and complex structure.

SUMMERY OF THE UTILITY MODEL

The utility model provides a folding handrail of treadmill to the not enough of prior art.

The utility model discloses take following technical measure: a handrail supporting seat is fixedly arranged at the top of a force arm, a handrail connecting piece is fixedly arranged on the handrail, the handrail connecting piece and the handrail supporting seat are connected together in a relatively pivoting mode through a rotating shaft, and a locking block and a blocking shaft which are matched with each other are arranged between the handrail connecting piece and the handrail supporting seat to achieve positioning and locking of the handrail connecting piece relative to the handrail supporting seat.

The concrete characteristics of this scheme are in addition, the fixed round pin axle that is provided with on the handrail connecting piece, and the cover is equipped with the latch segment at the epaxial cover of round pin, is provided with on the handrail supporting seat and keeps off the axle mounting groove, is provided with in keeping off the axle mounting groove and keeps off the axle. The locking block and the pin shaft are in clearance fit, so that the locking block can pivot relative to the pin shaft. The pin shaft and the hole on the handrail connecting piece are assembled together in a clearance fit mode.

The lower half part of the other end of the locking block is provided with a notch, and two right-angle surfaces of the notch, which are contacted with the arc surface on the baffle shaft, are defined as locking surfaces. The locking block is along with handrail pivot in-process, and the notch overlap joint of locking block realizes the location locking to the handrail on keeping off the axle under the action of gravity. When the lifting force is independently applied to the locking block to enable the notch on the locking block to be separated from the blocking shaft, the locking is released, and the handrail can pivot downwards.

The armrest supporting seat is provided with a stop block mounting groove, and a stop block is arranged in the stop block mounting groove and used for limiting the upward pivoting range of the armrest connecting piece.

The handrail connecting piece is fixedly provided with a locking nut, the handrail supporting seat is provided with a counter bore, and a countersunk head screw passes through the counter bore to be connected and screwed with the locking nut so as to connect the handrail supporting seat and the handrail connecting piece together in a relatively pivoting way.

The handrail connecting piece is an n-shaped piece consisting of a top plate and two side vertical plates, and holes for mounting pin shafts and through holes for mounting locking nuts are formed in the two side vertical plates.

The handrail supporting seat comprises two L-shaped side vertical plates and a connecting plate which connects the two L-shaped side vertical plates together, the L-shaped side vertical plates comprise horizontal portions and vertical portions, counter bores and stop block mounting grooves are formed in the horizontal portions, a stop block is arranged in each stop block mounting groove to limit the pivoting range of the handrail connecting piece, a blocking shaft mounting groove is formed in each vertical portion, and a blocking shaft is arranged in each blocking shaft mounting groove.

The countersunk head screw penetrates through the counter bore to be connected and screwed with the locking nut so as to connect the handrail supporting seat and the handrail connecting piece together in a relatively pivoting manner (two countersunk head screws are respectively used at the left side and the right side of each handrail), and when the root part of the countersunk head screw presses the end surface of the locking nut, the countersunk head screw and the locking nut are locked into a whole to form the rotating shaft.

The utility model has the advantages that: 1. safe and reliable: when the treadmill is used, the handrail is locked. When the handrail is pressed downwards, the handrail does not move, and a sporter can move by holding the handrail with ease; if the sporter mistakenly operates to lift the handrail upwards, the handrail is still braked, only a small controllable safety displacement is generated, and no potential safety hazard exists. Therefore, the sporter can safely and reliably feel whether the handrail is subjected to downward force or upward force.

2. The operation is simple: from the opening to the folding of handrail, the whole process is: when the handrail is lifted, the locking block is pushed upwards lightly to separate the locking surface from the blocking shaft. The handrail is then slowly lowered. Easy operation and no labor. Easier operation when switching from armrest folding to armrest opening: the hand-held handrail rotates upwards until the locking surface of the locking block is clamped on the arc surface of the blocking shaft, and the handrail is locked.

3. The structure is simple: easy assembly and low cost. The handrail and each part of the handrail supporting piece have simple structures, are easy to process, save material cost and save cost.

The assembly is simple: the pin shaft is connected with the locking block through a pin and a hole; the pin shaft is connected with the handrail connecting piece through a pin and a hole. The two parts are in clearance fit and are easy to assemble.

When the handrail is assembled with the handrail supporting seat, the handrail connecting piece and the handrail supporting seat are in clearance fit and are easy to assemble; the operation is easy by using the countersunk head screw for fastening.

In conclusion, the assembly is simple, the assembly quality is easy to guarantee, the assembly time is saved, and the labor efficiency is improved. Save space, exempt from the installation: the running platform, the handrail and the bottom legs are all folded, the packaging volume is small, the weight of the whole machine is light, the packaging material and the transportation cost are saved, the labor is saved, and the delivery is convenient. When the treadmill is not used, the handrail and the running platform are folded to save the placing space. The whole machine is packaged, the trouble of installation of a user is avoided, and time, labor and cost are saved. Therefore, the folding handrail treadmill of the section is as follows: safe use, simple structure, convenient operation, space saving and cost saving.

Drawings

Fig. 1 is a schematic view of the running machine in use. Fig. 2 is a schematic view of the storage state of the treadmill. FIG. 3 is a schematic view of the treadmill as it is packaged. Fig. 4 is a schematic view of the armrest structure. Fig. 5 is a schematic view of a frame structure. Fig. 6 is a schematic view of a handrail supporting seat. Fig. 7 is a partial schematic view of the assembled armrest and moment arm. 3 fig. 3 8 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 a 3- 3 a 3 of 3 fig. 3 7 3. 3 Figure 9 is a schematic partial cross-sectional view of the armrest in use. Fig. 10 is a partially schematic sectional view when the armrest is lifted upward. Fig. 11 is a schematic partial cross-sectional view of the armrest when folded up without the armrest.

In the figure: 1-instrument; 2-a handrail; 3-a notch; 4-a handrail connection; 5-locking the nut; 6-a locking block; 7-a pin shaft; 8-connecting plates; 9-moment arm; 10-handrail support seat; 11-L-shaped side vertical plates; 12-a stop block; 13-a catch shaft; 14-running platform; 15-bottom leg; 16-countersunk head screws; 17-a rotating shaft; and 18-instrument support frame.

Detailed Description

As shown in fig. 1-3 and 7, a folding handrail of a treadmill, a handrail supporting seat 10 is fixedly arranged at the top of a force arm 9, a handrail connecting piece 4 is fixedly arranged on a handrail 2, a locking nut 5 and a pin 7 are fixedly arranged on the handrail connecting piece 4, and the pin 7 is assembled with a hole on the handrail connecting piece 4 in a clearance fit manner. The pin shaft 7 is sleeved with a locking block 6, and the locking block 6 and the pin shaft 7 are in clearance fit so that the locking block 6 can flexibly rotate by taking the pin shaft 7 as an axis.

As shown in fig. 4, the handrail connecting member 4 is an n-shaped member including a top plate and two side vertical plates, and the two side vertical plates are provided with a hole for installing the pin 7 and a through hole for installing the lock nut 5.

As shown in fig. 6, the handrail supporting seat 10 includes two L-shaped side standing plates 11 and a connecting plate 8 connecting the two L-shaped side standing plates 11 together, the L-shaped side standing plates 11 include a horizontal portion and a vertical portion, a counter bore and a stopper mounting groove are provided on the horizontal portion, a stopper 12 is provided in the stopper mounting groove to limit the range of pivoting of the handrail connecting member 4, a stopper shaft mounting groove is provided on the vertical portion, and a stopper shaft 13 is provided in the stopper shaft mounting groove. The countersunk head screw 16 passes through the countersunk hole to be connected and screwed with the lock nut 5 so as to connect the handrail supporting seat 10 and the handrail connecting element 4 together in a relatively pivoting manner (two countersunk head screws 16 are respectively used at the left and right sides of each handrail 2), and when the root of the countersunk head screw 16 presses the end surface of the lock nut 5, the countersunk head screw 16 and the lock nut 5 are locked into a whole to form a rotating shaft 17 (see fig. 8).

The lower half part of the other end of the locking block 6 is provided with a notch 3, and two right-angle surfaces of the notch 3, which are contacted with the arc surface on the baffle shaft 13, are defined as locking surfaces. In the process that the locking block 6 pivots along with the handrail 2, the notch 3 of the locking block 6 is lapped on the stop shaft 13 under the action of gravity to lock the handrail 2. The unlocking is achieved when the locking block 6 is lifted alone to disengage the notch 3 in the locking block from the stop 13, and the armrest 2 can be pivoted downwards.

The handrail supporting seat 10 is provided with two counter bores with the angle of 90 degrees, and the depth of the counter bores is equal to the material thickness delta.

As shown in fig. 5, the armrest support base 10 is fixedly connected with the arm 9.

As shown in fig. 7: the handrail 2 is assembled with the handrail support base 10.

When the treadmill is used, the handrail 2 is as shown in fig. 1, and the athlete can hold the handrail 2 safely while using it.

As shown in fig. 2, when the treadmill is stored, the handrail 2 and the treadmill table 14 of the treadmill are both in a folded state, and the force arm 9, the handrail 2 and the treadmill table 14 are all perpendicular to the ground in parallel with each other in the axial direction.

Fig. 3 shows the condition of the package with the bottom leg 15 folded back in the condition of fig. 2.

The assembling process comprises the following steps: firstly, the locking block 6 is rotated to enable the lower surface (shown in figure 4) of the locking block 6 to fall on the stop shaft 13 (shown in figure 6 to show the stop shaft 13), then the screw hole (shown in figure 4 to show the locking nut 5) of the locking nut 5 is aligned with the counter bore (shown in figure 6 to show the counter bore) on the handrail supporting seat 10, the counter head screw 16 is connected and screwed with the locking nut 5 (two counter head screws 16 are respectively used on the left side and the right side of each handrail), when the root of the counter head screw 16 presses the end surface of the locking nut 5, the counter head screw 16 and the locking nut 5 are locked into a whole to form a rotating shaft 17 (shown in figure 8) (because the counter head screw 16 and the minimum diameter of the counter bore are designed to be in clearance fit, the depth of the counter bore is equal to the material thickness delta, when the counter head screw 16 is screwed. At this time, the pin 7 (see fig. 4 showing the pin 7) is simultaneously blocked by the inner end surface of the handrail supporting seat 10 (see fig. 6 showing the handrail supporting seat 10) and cannot fall out.

The outer dimension of the handrail connecting member 4 in fig. 4 is equal to the length of the lock nut 5, which is equal to the inner dimension of the handrail supporting base 10 in fig. 6 and is designed to be a clearance fit. The armrest 2 can be rotated about the rotary shaft 17.

The armrest 2 is shown in the position shown in fig. 9, 10 and 11 as follows:

as shown in fig. 9, the handrail 2 rotates around the rotating shaft 17 to a state when the treadmill is used (hereinafter, referred to as the handrail 2 is opened), and at this time, under the gravity of the handrail 2, the locking surface on the locking block 6 abuts against the blocking shaft 13, and the handrail 2 is locked (in fig. 9, two right-angle surfaces where the locking block 6 contacts with the arc surface on the blocking shaft 13 are both defined as locking surfaces).

(1) When the handrail 2 is pressed downwards, the force of the locking surface on the locking block 6 against the stop shaft 13 is increased, and the handrail 2 is tightly locked and cannot be displaced.

(2) When the handrail 2 is lifted upwards, the handrail 2 rotates around the rotating shaft 17 until the handrail connecting piece 4 and the stop block 12 are in contact (shown in fig. 10), and the stop block 12 restricts the handrail 2 from further rotating upwards. Meanwhile, the locking block 6 always keeps rotating downwards under the action of gravity by taking the pin shaft 7 as an axis, the locking surface of the locking block always falls on the baffle shaft 13, the handrail 2 is put down to the opening position again, and the handrail 2 is still locked safely.

The design idea here is: the armrest connector 4 is designed with a suitable clearance from the stop 12 so that a safe and controllable small displacement of the armrest 2 occurs when it is pivoted upwards, which is required to unlock the locking block 6, as will be described in detail below.

In summary, when the treadmill is used, the exerciser can restrain the handrail 2 no matter the exerciser applies upward or downward force to the handrail 2, and the treadmill is safe and reliable in the use process.

When the handrail 2 needs to be folded, the handrail 2 is lifted slightly to be shown in fig. 10, meanwhile, the locking block 6 is pushed upwards slightly (at the moment, the locking block 6 falls on the blocking shaft 13 only under the action of gravity and is easy to push upwards), and the locking block 6 is pushed upwards to rotate around the pin shaft 7, so that the locking surface of the locking block is separated from the blocking shaft 13 to unlock the locking block. At this point, the handrail 2 can be slowly lowered to the position shown in fig. 11, and the handrail 2 is folded.

Fig. 11 shows the treadmill handrail 2 folded when the treadmill is not in use. The process of fig. 10 transitioning to fig. 11 is: after the locking block 6 is unlocked, the armrest 2 continues to rotate downwards around the rotating shaft 17, at the moment, upward thrust is not applied to the locking block 6, the locking block 6 rotates downwards around the shaft 7 under the action of gravity, and the lower surface of the locking block always falls on the arc surface of the blocking shaft 13.

When the treadmill is used again, the handrail 2 is lifted up slightly, the handrail 2 rotates around the rotating shaft 17, the locking block 6 rotates downwards under the action of gravity by taking the pin shaft 7 as the rotating shaft, the lower surface of the locking block moves along the arc surface of the blocking shaft 13 all the time in the rotating process until the locking surface of the locking block falls on the arc surface of the blocking shaft 13, and the handrail 2 is locked.

Claims

1. A folding handrail of a treadmill is fixedly provided with a handrail supporting seat at the top of a force arm and is characterized in that a handrail connecting piece is fixedly arranged on the handrail, the handrail connecting piece and the handrail supporting seat are connected together in a relatively pivoting way through a rotating shaft, and a locking block and a blocking shaft which are mutually matched are arranged between the handrail connecting piece and the handrail supporting seat to realize the positioning and locking of the handrail connecting piece relative to the handrail supporting seat.

2. The foldable handrail of treadmill as claimed in claim 1, wherein a pin is fixedly installed on the handrail connecting member, a locking block is sleeved on the pin, a stopping shaft installation groove is installed on the handrail supporting base, and a stopping shaft is installed in the stopping shaft installation groove.

3. The folding handrail of a treadmill of claim 1, wherein the locking block is in a clearance fit with the pin such that the locking block pivots relative to the pin.

4. The folding handrail of treadmill of claim 1, wherein the lower half of the other end of the locking block is provided with a notch, and two right-angle surfaces of the notch contacting with the arc surface on the stop shaft define the locking surface, and during the pivoting process of the locking block along with the handrail, the locking block is overlapped on the stop shaft by the notch under the action of gravity to realize the positioning and locking of the handrail.

5. The folding handrail of a treadmill of claim 1, wherein the handrail support base is provided with a stop mounting slot, and a stop is disposed in the stop mounting slot to limit the extent of upward pivoting of the handrail connecting member.

6. The foldable handrail of treadmill as claimed in claim 1, wherein a locking nut is fixedly disposed on the handrail connecting member, a counter bore is disposed on the handrail supporting base, and a countersunk screw is passed through the counter bore and screwed with the locking nut to connect the handrail supporting base and the handrail connecting member together in a relatively pivotable manner.

7. The foldable handrail of treadmill of claim 6, wherein the handrail connecting member is an n-shaped member comprising a top plate and two side vertical plates, and the two side vertical plates are provided with a hole for mounting the pin and a through hole for mounting the locking nut.

8. The folding handrail of a treadmill according to claim 1, wherein the handrail support base comprises two L-shaped side plates and a connecting plate connecting the two L-shaped side plates, wherein the L-shaped side plates comprise a horizontal portion and a vertical portion, the horizontal portion is provided with a counter bore and a stopper mounting groove, a stopper is provided in the stopper mounting groove to limit a pivoting range of the handrail connecting member, the vertical portion is provided with a stopper shaft mounting groove, and a stopper shaft is provided in the stopper shaft mounting groove.

9. The foldable handrail of treadmill of claim 8, wherein the countersunk head screw passes through the counter bore and is tightly connected with the locking nut to connect the handrail supporting base and the handrail connecting member together in a relatively pivotable manner, and when the root of the countersunk head screw presses the end face of the locking nut, the countersunk head screw and the locking nut are locked together to form a rotating shaft.