Summary of the invention
Technical problem to be solved by this invention is: provide a kind of hand upside down machine, solves hand upside down machine of the prior art and is inconvenient to use and the lower defect of security, realizes improving the security of hand upside down machine and is user-friendly to.
Technical scheme provided by the invention is, a kind of hand upside down machine, comprise bracing frame and backrest, described backrest is rotating to be connected on support frame as described above, also comprise the Manual drive mechanism with auto-lock function, described Manual drive mechanism comprises shell, power input shaft and power output shaft, is in transmission connection between described power input shaft and described power output shaft; Described power output shaft is connected on support frame as described above, and described shell is fixed on the side of described backrest.
The present invention also provides a kind of hand upside down machine, comprise bracing frame and backrest, described backrest is rotating to be connected on support frame as described above, also comprise the Manual drive mechanism with auto-lock function, described Manual drive mechanism comprises shell, power input shaft and power output shaft, is in transmission connection between described power input shaft and described power output shaft; Described shell is fixed on support frame as described above, and described power output shaft is connected to the side of described backrest.
Further, described power input shaft is screw rod, described Manual drive mechanism also comprises tooth bar, described screw rod and the rotating connection of described power output shaft are on the housing, described tooth bar is slidably connected in the housing, described tooth bar offers tapped through hole, and described screw flight is connected in described tapped through hole, and described tooth bar is connected with described pto.
Further, described power input shaft is worm shaft, described Manual drive mechanism also comprises tooth bar, described worm shaft and the rotating connection of described power output shaft are on the housing, described tooth bar is slidably connected in the housing, described worm shaft engages with described tooth bar, and described tooth bar is connected with described pto.
Further, described Manual drive mechanism also comprises the worm shaft and worm-wheel shaft that link together, on the housing, described power input shaft and described worm shaft are in transmission connection, and described worm-wheel shaft is connected with described pto for described worm shaft and the rotating connection of described worm-wheel shaft.
Further, described Manual drive mechanism also comprises the worm shaft and worm-wheel shaft that link together, on the housing, described power input shaft is described worm shaft, and described worm-wheel shaft is connected with described pto for described worm shaft and the rotating connection of described worm-wheel shaft.
Further, described power input shaft is provided with angular adjustment handwheel or handle or rotating disk.
Further, also buffer damping mechanism is provided with between described backrest and support frame as described above.
Further, described backrest is provided with rotating manual actuation part, described manual actuation part and described power input shaft are in transmission connection.
Further, described manual actuation part is handwheel, and the rotating shaft of described handwheel is rotating to be connected on described backrest, and described handwheel is provided with drive sprocket, described power input shaft is provided with driven sprocket, between described drive sprocket and described driven sprocket, is provided with chain.
Compared with prior art, advantage of the present invention and good effect are: hand upside down machine provided by the invention, backrest is driven to rotate by adopting the Manual drive mechanism with auto-lock function, when the unpowered input of power input shaft, Manual drive mechanism can realize automatic self-locking, thus guarantee that the attitude that backrest keeps adjusting is constant, realize the both hands of liberation user, simultaneously, effectively avoid backrest rotate voluntarily and meet accident, realization improves the security of manual upside down machine and is user-friendly to.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
As shown in Figure 1, the manual upside down machine of the present embodiment, comprise bracing frame 1 and backrest 2, backrest 2 can rotate on bracing frame 1, the manual upside down machine of the present embodiment also comprises the Manual drive mechanism 3 with auto-lock function, Manual drive mechanism 3 comprises shell, power input shaft and power output shaft, Manual drive mechanism 3 is connected between bracing frame 1 and backrest 2, the driving force that user applies manually driving mechanism 3 realizes driving backrest 2 to rotate, and when the unpowered input of power input shaft, Manual drive mechanism 3 will realize self-locking, thus make backrest 2 holding position motionless.Wherein, the power resources of power input shaft are from the power of the applying of user, such as, user can pass through rotational angle adjusting handle, or handle, or the manual actuation part such as rotating disk drives power input shaft to rotate, for angular adjustment handwheel, angular adjustment handwheel can directly be connected on power input shaft by key, or, angular adjustment handwheel is rotating to be connected on backrest 2, and angular adjustment handwheel and power input shaft are in transmission connection, and the mode be in transmission connection can adopt connect drive sprocket on the axle of angular adjustment handwheel, and power input shaft is provided with driven sprocket, chain is provided with between drive sprocket and driven sprocket.
Embodiment two
As Fig. 1, Fig. 2, shown in Fig. 4 and Fig. 5, the present embodiment hand upside down machine is based on above-described embodiment one, comprise bracing frame 1 and backrest 2, also comprise Manual drive mechanism 3, described Manual drive mechanism 3 comprises shell 31, screw rod 32, tooth bar 33 and power output shaft 34, wherein, screw rod 32 is power input shaft, described screw rod 32 and described power output shaft 34 is rotating is connected on described shell 31, described tooth bar 33 is slidably connected in described shell 31, described tooth bar 33 offers tapped through hole 331, described screw rod 32 is threaded in described tapped through hole 331, tooth bar 33 and described power output shaft 34 are in transmission connection, described power output shaft 34 is connected on support frame as described above 1, and described shell 31 is fixed on the side of described backrest 2, and the opposite side of described backrest 2 is provided with back shaft 22, and described back shaft 22 is connected on support frame as described above 1.
Specifically, bracing frame 1 each side one for supporting backrest 2, backrest 2 can rotate on bracing frame 1, wherein, power output shaft 34 is arranged in the axis hole on corresponding bracing frame 1 by key, and in back shaft 22 can be connected on corresponding bracing frame 1 axis hole by key or directly in the rotating axis hole be connected on corresponding bracing frame 1.And the power resources of screw rod 32 are from the power of the applying of user, such as, user can pass through rotational angle adjusting handle 35, or handle, or the manual actuation part drive screw 32 such as rotating disk rotates, for angular adjustment handwheel 35, angular adjustment handwheel 35 can directly be connected on screw rod 32 by key, or, angular adjustment handwheel 35 is rotating to be connected on backrest 2, and be in transmission connection between angular adjustment handwheel 35 and screw rod 32, and the mode be in transmission connection can adopt connect drive sprocket on angular adjustment handwheel 35 axle, and screw rod 32 is provided with driven sprocket, chain is provided with between described drive sprocket and described driven sprocket.In addition, the side of backrest 2 is connected with Manual drive mechanism 3 by connector 21, and connector 21 adopts dismountable mode to be connected on backrest 2, to facilitate dismounting and the assembling of backrest 2.Preferably, be provided with chute (not shown) in shell 31, described tooth bar 33 is slidably connected in described chute, can be led by chute to tooth bar 33, to guarantee that tooth bar 33 slides smoothly.
In addition, the shell 31 of the Manual drive mechanism 3 in above-described embodiment hand upside down machine is fixed on backrest 2; Same, the shell 31 of Manual drive mechanism 3 can directly be fixed on bracing frame 1, in this case, the power output shaft 34 of described Manual drive mechanism 3 is fixedly connected on the side of described backrest 2, in use, Manual drive mechanism 3 main body is motionless relative to bracing frame 1, and power output shaft 34 drives backrest 2 to rotate.
Hand upside down machine provided by the invention, slide to drive tooth bar as power intake by adopting screw rod, tooth bar coordinates with power output shaft and realizes driving backrest to rotate, and because screw rod is as power input shaft, when the unpowered input of screw rod, tapped through hole in screw rod and tooth bar will realize automatic self-locking, thus guarantee that the attitude that backrest keeps adjusting is constant, realize the both hands of liberation user, simultaneously, effectively avoid backrest rotate voluntarily and meet accident, realization improves the security of hand upside down machine and is user-friendly to.
Embodiment three
Same, as shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the present embodiment hand upside down machine is based on above-described embodiment one and two, be with the difference of embodiment two, the employing worm shaft 32 of Manual drive mechanism 3 is as power input shaft, and worm shaft 32 engages with tooth bar 33, and the driving worm shaft 32 of the power of the applying of user rotates, worm shaft 32 drives tooth bar 33 to move, tooth bar 33 by power transmission to power output shaft 34.And when the unpowered input of worm shaft 32, worm shaft 32 coordinates with tooth bar 33 and realizes self-locking, thus guarantees that the attitude that backrest 2 keeps adjusting is constant.Wherein, tooth bar 33 can directly engage with gear shaft 34, also can be in transmission connection by other drive disk assemblies and gear shaft 34 by tooth bar 33.
Embodiment four
Same, as shown in Figure 1, the present embodiment hand upside down machine is based on above-described embodiment one, two and three, be with the difference of embodiment one, two and three: Manual drive mechanism 3 also comprises the worm shaft and worm-wheel shaft that link together, described worm shaft and the rotating connection of described worm-wheel shaft are on the housing, described power input shaft and described worm shaft are in transmission connection, and described worm-wheel shaft is connected with described pto; Or, Manual drive mechanism 3 also comprises the worm shaft and worm-wheel shaft that link together, on the housing, described power input shaft is described worm shaft, and described worm-wheel shaft is connected with described pto for described worm shaft and the rotating connection of described worm-wheel shaft.Concrete, Manual drive mechanism 3 adopts worm shaft and worm-wheel shaft to coordinate and realizes self-locking, and wherein, worm shaft can be same axis with power input shaft, also can be axle independently.
Embodiment five
Based on above-described embodiment one to embodiment four, as shown in Figure 6, buffer damping mechanism 4 is also provided with between backrest 2 and bracing frame 1.Concrete, when Manual drive mechanism 3 drives backrest 2 to rotate, because gear clearance easily occurs that backrest 2 shakes, and buffer damping mechanism 4 effectively can be buffered in rocking of backrest 2 generation, backrest 2 can be rotated more stably, improve the experience comfortableness of user.And buffer damping mechanism 4 can adopt air spring or damper etc. to have the parts of buffering and shock-absorbing function, for air spring, air spring is hinged between backrest 2 and bracing frame 1, to guarantee that backrest 2 can rotate more stably.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.