CN101881366A - Folding bracket and transport - Google Patents
Folding bracket and transport Download PDFInfo
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- CN101881366A CN101881366A CN 201010223424 CN201010223424A CN101881366A CN 101881366 A CN101881366 A CN 101881366A CN 201010223424 CN201010223424 CN 201010223424 CN 201010223424 A CN201010223424 A CN 201010223424A CN 101881366 A CN101881366 A CN 101881366A
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- folding rack
- rotating shaft
- link arm
- bolt
- connecting rod
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Abstract
The invention discloses a folding bracket and transport. The folding bracket comprises a fixed seat, a connecting arm and an installation seat; the installation seat is provided with an installation groove; the installation seat is hinged at one end of the connecting arm; a connecting rod is fixed in the connecting arm; the connecting rod extends out the other end of the connecting arm and is provided with a limit block; the fixed seat comprises a support frame of which the cross section is U-shaped, a limit sleeve on which a limit groove is formed and a rotating shaft; the two ends of the limit sleeve is fixed on the two side walls of the support frame; the rotating shaft penetrates in the limit sleeve and is hinged on the two side walls; the connecting rod penetrates through the limit groove is inserted into the rotating shaft vertically to connect the rotating shaft in a sliding way; and a limit block is arranged in the limit groove. The connecting arm and the fixed seat are limited through the limit sleeve and the limit block, so that the folding bracket can support and fix a part to be installed firmly and the reliability of the folding bracket is improved.
Description
Technical field
The present invention relates to mechanical device, relate in particular to a kind of folding rack and the traffic tool.
Background technique
At present, be equipped with TV on the bullet train usually, watch on the road for the user.According to different usage requirements, TV can be fixed in the compartment of train, also can be arranged in the handrail of vehicle seat in the compartment by folding rack.Wherein, it is a kind of mode commonly used at present that TV is arranged in the compartment by folding rack, when the user need watch TV, by rotating folding rack TV is pulled out from the handrail of vehicle seat.
As shown in Figure 1, folding rack of the prior art generally includes fixed base 101, link arm 102 and fitting seat 103; Fixed base 101 is installed in the compartment; One end of link arm 102 is hinged by bolt 105 and fixed base 101, thereby makes link arm 102 rotate 101 with respect to fixed base; Be installed with TV 104 in the fitting seat 103, and fitting seat 103 is hinged by bolt 105 with the other end of link arm 102, thereby fitting seat 103 can be rotated with respect to link arm 102.In use, by link arm 102 is rotated with respect to fixed base 101, realize TV 104 is pulled out from handrail; By fitting seat 103 is rotated with respect to link arm 102, realize that TV 104 is turned to suitable position to be watched for the user.
As from the foregoing, after by folding rack of the prior art TV being supported and adjusts the angle of TV, the link arm of folding rack still can rotate with respect to fixed base, strong vibration can cause link arm to rotate in train travelling process, and TV is overturn downwards, TV damages the user easily.Therefore, folding rack of the prior art can not be firm supports TV, and reliability is relatively poor.
Summary of the invention
The invention provides a kind of folding rack and the traffic tool, solve the TV that supports that folding rack of the prior art can not be firm and wait for assembly, the defective that reliability is relatively poor, the realization folding rack can firm support fixation be lived parts to be installed, improves the reliability of folding rack.
The invention provides a kind of folding rack, comprising: fixed base, link arm and fitting seat; Described fitting seat is provided with mounting groove, and described fitting seat is hinged on an end of described link arm; Be installed with connecting rod in the described link arm, described connecting rod stretches out the other end of described link arm and is provided with limiting stopper; Described fixed base comprises that cross section is the supporting frame of U-shaped, the stop collar that offers restraining groove and rotating shaft; The two ends of described stop collar are installed on the two side of support frame as described above, and described rotating shaft is located in the described stop collar and is hinged on the two described sidewalls; Described connecting rod passes described restraining groove and vertically is plugged in the described rotating shaft and is slidingly connected with described rotating shaft, and described limiting stopper is slidingly installed in the described restraining groove.
Folding rack provided by the invention, be provided with stop collar by fixed base, and the limiting stopper of rotating shaft on the link arm is slidingly installed in the restraining groove of stop collar, in the connecting rod of link arm rotates around the axis process, mating reaction by stop collar and limiting stopper, can effectively carry out spacing to the relation of the position between link arm and the fixed base, thereby after the user waits for TV the assembly pull-up by the link arm that rotates folding rack and supports, stop collar and limiting stopper will effectively carry out spacing to link arm and fixed base, effectively avoided causing the user to be waited for that by TV assembly injures by a crashing object because of factors such as vibrations cause link arm to rotate, thereby realized that folding rack can firm support fixation live parts to be installed, improved the reliability of folding rack.
Aforesaid folding rack, in order effectively to realize carrying out spacing to link arm and the relation of the position between fixed base by limiting stopper and stop collar, described limiting stopper is a quadrilateral structure, and wherein a relative edge is a linear structure, and another relative edge is an arc structure; Described restraining groove comprises rotation slot and the sliding-groove that is interconnected, and the sidewall of described rotation slot is a linear structure, and the sidewall of described sliding-groove is an arc structure; Described connecting rod offers annular groove with the end that described rotating shaft is connected; Described rotating shaft offers first mounting hole and second mounting hole of mutual vertical connection, the axis of described first mounting hole and the axis normal of described rotating shaft; Described connecting rod is plugged in described first mounting hole, is inserted with locating column in described second mounting hole, and described locating column is slidingly installed in the described annular groove.
Aforesaid folding rack, can position in any angle of swing between realization link arm for convenience and the fitting seat, described link arm comprises first connecting cylinder and second connecting cylinder that vertically is solid-located mutually, and an end of described first connecting cylinder is provided with stepped coupling shaft; Offer the 3rd mounting hole that is communicated with described mounting groove on the described fitting seat; Described coupling shaft is located in described the 3rd mounting hole and extends in the described mounting groove; Be arranged with two friction plates on the described coupling shaft; The end that described mounting groove is connected with described coupling shaft is between two friction plates, and two friction plates closely are resisted against on the described mounting groove.
Aforesaid folding rack can position in any angle of swing between realization link arm for convenience and the fixed base, and described link arm also comprises fastening block and jackscrew device; Offer through hole perpendicular to axial direction on the described fastening block, and offer first tapped hole along axial direction, described first tapped hole is communicated with described through hole; Described jackscrew device comprises adjustment disk and offer threaded cylinder, and described cylinder is installed on the described adjustment disk, and described cylinder is a sharp structure away from the end of described adjustment disk; Described fastening block is installed in the other end of described first connecting cylinder, and described cylinder is screwed onto in described first tapped hole; Described connecting rod offers ball recess away from the end of described limiting stopper, and described connecting rod is located in the described through hole, and described sharp structure is resisted against in the described ball recess; Described second connecting cylinder is installed with first air ring away from the end of described first connecting cylinder; Described fixed base also comprises first urceolus and second urceolus that is solid-located, the axis normal of the axis of described first urceolus and described second urceolus; Described first urceolus is set in the outside of described stop collar, and the end of described second urceolus is installed with second air ring; Described connecting rod is located in described first air ring and described second air ring; Be provided with friction plate between described first air ring and described second air ring, friction plate closely is resisted against on described first air ring and described second air ring.
Aforesaid folding rack, can position at any rotation angle between realization link arm for convenience and the fixed base, be provided with friction plate between the sidewall of described rotating shaft and support frame as described above, described friction plate closely is resisted against on the end face and described sidewall of described rotating shaft.
Aforesaid folding rack, described fixed base comprise first bolt and second bolt that hand of spiral is opposite; Described first bolt and described second bolt pass the sidewall of support frame as described above and friction plate and described rotating shaft respectively and are spirally connected.
Aforesaid folding rack, loosening in order to prevent that effectively first bolt and second bolt from occurring, the head of described first bolt and described second bolt is gear structure; Offer first pin hole on the sidewall of support frame as described above, pin is resisted against on the gear teeth of described first bolt and described second bolt and is plugged in described first pin hole.
Aforesaid folding rack, for effectively the control fitting seat is with respect to the angle of link arm rotation, described fitting seat is provided with position limit pin, offers curve bath on the described link arm, and described position limit pin is slidingly installed in the described curve bath.
Aforesaid folding rack, loosening in order to prevent that effectively adjustment disk from occurring, the adjustment disk of described jackscrew device is a gear structure; Described fastening block offers second pin hole, and pin is resisted against on the gear teeth of described adjustment disk and is plugged in described second pin hole.
The invention provides a kind of traffic tool, comprise traffic main body and television equipment, also comprise aforesaid folding rack; Described television equipment is arranged in the fitting seat of described folding rack, and the fixed base of described folding rack is installed in the described traffic main body.
Folding rack provided by the invention, be provided with stop collar by fixed base, and the limiting stopper of rotating shaft on the link arm is slidingly installed in the restraining groove of stop collar, in the connecting rod of link arm rotates around the axis process, mating reaction by stop collar and limiting stopper, can effectively carry out spacing to the relation of the position between link arm and the fixed base, thereby after the user waits for TV the assembly pull-up by the link arm that rotates folding rack and supports, stop collar and limiting stopper will effectively carry out spacing to link arm and fixed base, effectively avoided causing the user to be waited for that by TV assembly injures by a crashing object because of factors such as vibrations cause link arm to rotate, thereby realized that folding rack can firm support fixation live parts to be installed, improved the reliability of folding rack.
Description of drawings
Fig. 1 is the structural representation of folding rack in the prior art;
Fig. 2 is folding rack embodiment's of the present invention structural representation;
Fig. 3 is the structural representation of fitting seat among the folding rack embodiment of the present invention;
Fig. 4 is the structural representation of link arm among the folding rack embodiment of the present invention;
Fig. 5 is the structural representation of connecting rod among the folding rack embodiment of the present invention;
Fig. 6 is the structural representation of fixed base among the folding rack embodiment of the present invention;
Fig. 7 be among Fig. 6 C-C to sectional view;
Fig. 8 is the structural representation of supporting frame among the folding rack embodiment of the present invention;
Fig. 9 is the structural representation of stop collar among the folding rack embodiment of the present invention;
Figure 10 is the structural representation of folding rack embodiment shaft of the present invention
Figure 11 be among Fig. 3 A-A to sectional view;
Figure 12 a is the structural representation of fastening block among the folding rack embodiment of the present invention;
Figure 12 b be among Figure 12 a B-B to sectional view;
Figure 13 is the structural representation of jackscrew device among the folding rack embodiment of the present invention.
Embodiment
For the purpose, technological scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who is obtained under the creative work prerequisite.
Fig. 2 is folding rack embodiment's of the present invention structural representation, Fig. 3 is the structural representation of fitting seat among the folding rack embodiment of the present invention, Fig. 4 is the structural representation of link arm among the folding rack embodiment of the present invention, Fig. 5 is the structural representation of connecting rod among the folding rack embodiment of the present invention, Fig. 6 is the structural representation of fixed base among the folding rack embodiment of the present invention, Fig. 7 be among Fig. 6 C-C to sectional view.As Fig. 2-shown in Figure 7, the present embodiment folding rack comprises: fixed base 3, link arm 2 and fitting seat 1.
Fitting seat 1 in the present embodiment is provided with mounting groove 11, and fitting seat 1 is hinged on an end of link arm 2; Be installed with connecting rod 20 in the link arm 2, connecting rod 20 stretches out the other end of link arm 2 and is provided with limiting stopper 201; Fixed base 3 comprises that cross section is the supporting frame 31 of U-shaped, the stop collar 32 that offers restraining groove 321 and rotating shaft 33; The two ends of stop collar 32 are installed on the two side 311 of supporting frame 31, and rotating shaft 33 is located in the stop collar 32 and is hinged on the two side 311; Connecting rod 20 passes restraining groove 321 and vertically is plugged in the rotating shaft 33 and is slidingly connected with rotating shaft 33, and limiting stopper 201 is slidingly installed in the restraining groove 321.
Particularly, the fitting seat 1 in the present embodiment offers mounting groove 11, thereby TV can be waited for that assembly is plugged in the mounting groove 11, realizes TV is fixed on the fitting seat 1.Fitting seat 1 in the present embodiment is hinged with link arm 2, fitting seat 1 can be rotated around link arm 2, wherein, fitting seat 1 in the present embodiment can be realized with link arm 2 hinged by rotatingshaft, also can directly link arm 2 be inserted in the fitting seat 1, realize that fitting seat 1 rotates with respect to link arm 2, the present embodiment folding rack does not limit the concrete Placement between fitting seat 1 and the link arm 2.Be set with connecting rod 20 on the link arm 2, link arm 2 can be with respect to connecting rod 20 around rotational, and this connecting rod 20 will stretch out from the other end of link arm 2; The part that connecting rod 20 stretches out link arm 2 also is provided with limiting stopper 201, and wherein, the limiting stopper 201 in the present embodiment can be quadrilateral structure, and wherein a relative edge is a linear structure, and another relative edge is an arc structure.As Fig. 7-shown in Figure 10, the cross section of the supporting frame 31 of fixed base 3 is a U-shaped in the present embodiment, the two ends of stop collar 32 are installed on the supporting frame 31, and rotating shaft 33 is located in the stop collar 32 and hinged with two sidewalls 311, thereby realize that rotating shaft 33 can rotate under the support of sidewall 311.Wherein, firm stop collar 32 is fixed on the supporting frame 31 for convenience, can be installed with a pair of fixed plate that is parallel to each other 322 at the two end part of stop collar 32 respectively,, realize stop collar 32 is fixed on the supporting frame 31 by fixed plate 322 being set on the sidewall 311 of supporting frame 31.Offer restraining groove 321 on the stop collar 32 in the present embodiment, the restraining groove 321 that connecting rod 20 passes on the stop collar 32 is inserted in the rotating shaft 33, and be slidingly connected with rotating shaft 33, for example: the end that the connecting rod 20 in the present embodiment is connected with rotating shaft 33 offers annular groove 202; Rotating shaft 33 offers first mounting hole 331 and the axis of second mounting hole, 332, the first mounting holes 331 and the axis normal of rotating shaft 33 of mutual vertical connection; Connecting rod 20 is plugged in first mounting hole 331, be inserted with locating column (not shown) in second mounting hole 332, locating column is slidingly installed in the annular groove 202, thereby connecting rod 20 can rotate together along with rotating shaft 33, and connecting rod 20 can freely rotate in first mounting hole 331, thereby realizes that link arm 2 can rotate with respect to rotating shaft 33.Simultaneously, limiting stopper 201 on the connecting rod 20 in the present embodiment is slidingly installed in the restraining groove 321, for example: the restraining groove 321 in the present embodiment can comprise rotation slot 3211 and the sliding-groove 3212 that is interconnected, and the sidewall of rotation slot 3211 is a linear structure, and the sidewall of sliding-groove 3212 is an arc structure.When limiting stopper 201 is in rotation slot 3211, one opposite side of the arc structure of limiting stopper 201 will match with rotation slot 3211, limiting stopper 201 can only rotate in rotation slot 3211, made connecting rod 20 can not follow rotating shaft 33 and be rotated further, and connecting rod 20 can freely rotate in first mounting hole 331 this moment; When limiting stopper 201 is in sliding-groove 3212, one opposite side of the linear structure of limiting stopper 201 will match with sliding-groove 3212, limiting stopper 201 can only slide in sliding-groove 3212, connecting rod 20 can not freely be rotated in first mounting hole 331, and this moment, connecting rod 20 can be rotated further along with rotating shaft 33.As from the foregoing, carry out in the rotation process when the rotating shaft 33 that link arm 2 can followed in the fixed base 3, link arm 2 can not freely rotate around self axis; Same, when link arm 2 can be when self axis freely rotates, the rotating shaft 33 that link arm 2 just can not followed in the fixed base 3 is rotated.By the present embodiment folding rack TV is being pulled out in the process, TV can not cause the TV damage of colliding with around self rotational because of link arm 2; Same, after TV was pulled out, in the process of user by the angle of the arm 2 adjusting TVs that are rotationally connected, link arm 2 can not be followed rotating shaft 33 rotations and be caused TV to fall to injuring by a crashing object the user.
The present embodiment folding rack, be provided with stop collar by fixed base, and the limiting stopper of rotating shaft on the link arm is slidingly installed in the restraining groove of stop collar, in the connecting rod of link arm rotates around the axis process, mating reaction by stop collar and limiting stopper, can effectively carry out spacing to the relation of the position between link arm and the fixed base, thereby after the user waits for TV the assembly pull-up by the link arm that rotates folding rack and supports, stop collar and limiting stopper will effectively carry out spacing to link arm and fixed base, effectively avoided causing the user to be waited for that by TV assembly injures by a crashing object because of factors such as vibrations cause link arm to rotate, thereby realized that folding rack can firm support fixation live parts to be installed, improved the reliability of folding rack.
Based on technique scheme, optionally, Fig. 1-shown in Figure 13, can position in any angle of swing between realization link arm 2 for convenience and the fitting seat 1, link arm 2 in the present embodiment comprises that mutual first connecting cylinder 21 that vertically is solid-located and an end of second connecting cylinder, 22, the first connecting cylinders 21 are provided with stepped coupling shaft 23; Offer the 3rd mounting hole 12 that is communicated with mounting groove 11 on the fitting seat 1; Coupling shaft 23 is located in the 3rd mounting hole 13 and extends in the mounting groove 11; Be arranged with two friction plates 4 on the coupling shaft 23; The end that mounting groove 11 is connected with coupling shaft 23 is between two friction plates 4, and two friction plates 4 closely are resisted against on the mounting groove 11.Concrete, in order to realize that the user is in by the process of rotation fitting seat 1 with respect to link arm 2, can realize that fitting seat 1 can locate at an arbitrary position, first connecting cylinder 21 of link arm 2 is hinged by coupling shaft 23 and fitting seat 1 in the present embodiment, and fitting seat 1 can rotate around coupling shaft 23.Wherein, also be arranged with two friction plates 4 on the coupling shaft 23, fitting seat 1 has the end clips of the 3rd mounting hole 13 between two friction plates 4, and two friction plates 4 are resisted against in the fitting seat 1 closely, for example: be arranged in the outer pad 41 that can be provided with of the friction plate 4 of mounting groove 11 in the present embodiment it is protected, and another piece friction plate 4 is resisted against on the ladder table top of coupling shaft 23; The part that coupling shaft 23 is extend in the mounting groove 11 is riveted on the pad 41 then, can realize that friction plate 4 is resisted against on the fitting seat 1 closely.Wherein, the friction plate 4 in the present embodiment can adopt the material of friction resistant to make, for example: and macromolecular materials such as polyurethane, but the present embodiment folding rack does not limit the material of friction plate 4.In first connecting cylinder 21 rotating process of fitting seat 1 with respect to link arm 2, produce frictional force between friction plate 4 and fitting seat 1 and the coupling shaft 23, under the effect of frictional force, fitting seat 1 can rotate with respect to link arm 2 and position after arbitrarily angled.
Further, can position in any angle of swing between realization link arm 2 for convenience and the fixed base 1, the link arm 2 in the present embodiment can also comprise fastening block 24 and jackscrew device 25; Offer through hole 241 perpendicular to axial direction on the fastening block 24, and offer first tapped hole, 242, the first tapped holes 242 along axial direction and be communicated with through hole 241; Jackscrew device 25 comprises adjustment disk 251 and offers threaded cylinder 252, and cylinder 252 is installed on the adjustment disk 251, and cylinder 252 is a sharp structure 2521 away from the end of adjustment disk 251; Fastening block 24 is installed in the other end of first connecting cylinder 21, and cylinder 252 is screwed onto in first tapped hole 242; Connecting rod 20 offers ball recess 203 away from the end of limiting stopper 201, and connecting rod 20 is located in the through hole 241, and sharp structure 2521 is resisted against in the ball recess 203; Second connecting cylinder 22 is installed with first air ring 221 away from the end of first connecting cylinder 21; Fixed base 3 also comprises first urceolus 341 and the axis of second urceolus, 342, the first urceolus 341 and the axis normal of second urceolus 342 that is solid-located; First urceolus 341 is set in the outside of stop collar 32, and the end of second urceolus 342 is installed with second air ring 3421; Connecting rod 20 is located in first air ring 221 and second air ring 3421; Be provided with friction plate 4 between first air ring 221 and second air ring 3421, friction plate 4 closely is resisted against on first air ring 221 and second air ring 3421.Concrete, the end of second connecting cylinder 22 in the present embodiment is installed with first air ring 221, and the end of second urceolus 342 is installed with second air ring 3421, also is provided with friction plate 4 between first air ring 221 and second air ring 3421, and this friction plate 4 is set in connecting rod 20.By rotating jackscrew device 25, sharp structure 2521 in the jackscrew device 25 will enter into ball recess 203, and in the process that jackscrew device 25 is tightened, sharp structure 2521 will move to the center portion of ball recess 203 gradually along the upper end portion of ball recess 203, connecting rod 20 will upwards be spurred under the effect of jackscrew device 25 in this process, thereby the distance between first air ring 221 and second air ring 3421 is diminished, friction plate 4 is resisted against between first air ring 221 and second air ring 3421 closely.At link arm 2 when its axis is rotated, friction plate 4 will apply frictional force to first air ring 221 and second air ring 3421, thereby link arm 2 can be positioned in the arbitrarily angled back of rotation by friction plate 4, make the user forward TV to arbitrary position, and make the TV can be motionless in this fixed-site by the present embodiment folding rack.
Further, can position at any rotation angle between realization link arm 2 for convenience and the fixed base 3, can be provided with friction plate 4 between the rotating shaft 33 in the present embodiment and the sidewall 311 of supporting frame 31, friction plate 4 closely is resisted against on the end face and sidewall 311 of rotating shaft 33.Concrete, be provided with friction plate 4 between the end face of the rotating shaft 33 in the present embodiment and the sidewall 311, for example: realization rotating shaft 33 for convenience is hinged on the sidewall 331, and conveniently friction plate 4 is assembled, the fixed base 3 in the present embodiment can comprise first bolt 351 and second bolt 352 that hand of spiral is opposite; Sidewall 311 and friction plate 4 that first bolt 351 and second bolt 352 pass supporting frame 31 respectively are spirally connected with rotating shaft 33.Concrete, can offer tapped hole 333 at the two ends of rotating shaft 33, tapped hole 333 by first bolt 351 and second bolt 352 and rotating shaft 33 is spirally connected, and realizes rotating shaft 33 is hinged on the sidewall 311, thereby rotating shaft 33 can be rotated under the support of sidewall 311; And first bolt 351 and second bolt 352 pass friction plate 4 respectively, thereby friction plate 4 can be assembled in the fixed base 3 by first bolt 351 and second bolt 352.Wherein, first bolt 351 in the present embodiment is opposite with the hand of spiral of second bolt 352, when rotating shaft 33 is rotated, it is loosening to prevent effectively that first bolt 351 and second bolt 352 from taking place, and rotating shaft 33 can be rotated with respect to first bolt 351 and second bolt 352 freely.In assembly process, tighten first bolt 351 and second bolt 352 is resisted against on the end face and sidewall 311 of rotating shaft 33 friction plate 4 closely by instrument, rotating shaft 33 can be positioned by countershaft 33 by friction plate 4 in the arbitrarily angled back of rotation, thereby realization link arm 2 can be followed arbitrarily angled the positioning of rotating shaft 33 rotations.
The present embodiment folding rack, by friction plate being set at each rotary part, can realize easily by the present embodiment folding rack that after TV is waited for that assembly is adjusted to the arbitrary position TV can keep motionless in this position, thereby makes things convenient for the user to watch TV.
Based on technique scheme, optionally, loosening in order to prevent that effectively first bolt 351 and second bolt 352 from occurring, first bolt 351 in the present embodiment and the head of second bolt 352 are gear structure; Offer first pin hole 312 on the sidewall 311 of supporting frame 31, pin (not shown) is resisted against the gear teeth (not shown) of first bolt 351 and second bolt 352 and goes up and be plugged in first pin hole 312.Concrete, head by first bolt 351 and second bolt 352 is set to gear structure, after adjusting first bolt 351 and second bolt 352 and tightening degree, can be by pin being inserted in first pin hole 312, pin is resisted against on the gear teeth of first bolt 351 and second bolt 352, thereby prevents that effectively first bolt 351 and second bolt 352 from rotating.
Further, loosening in order to prevent that effectively adjustment disk 251 from occurring, the adjustment disk 251 of the jackscrew device 25 in the present embodiment is a gear structure; Fastening block 24 offers second pin hole 243, and pin (not shown) is resisted against on the gear teeth 2511 of adjustment disk 251 and is plugged in second pin hole 243.Concrete, loosening in order to prevent that adjustment disk 251 from occurring, after adjustment disk 251 is tightened, pin is inserted in second pin hole 243, pin is resisted against on the gear teeth 2511 of adjustment disk 251, thereby prevents that effectively adjustment disk 251 from rotating.
Further, for effectively control fitting seat 1 is with respect to the angle of link arm 2 rotations, fitting seat is provided with position limit pin 13, offers curve bath 231 on the link arm 2, and position limit pin 13 is slidingly installed in the curve bath 231.Concrete, can on the ladder end face on the coupling shaft 23 of link arm 2, offer curve bath 231, after being assembled to fitting seat 1 on the link arm 2, position limit pin 13 on the fitting seat 1 will be slidingly installed in the curve bath 231, wherein, the central angle of the curve bath 231 in the present embodiment can be set its setting range as required between 0 degree-360 degree, cooperates by curve bath 231 and position limit pin 13, can limit the slewing area of fitting seat 1 with respect to link arm 2.
The present embodiment folding rack, the head by first bolt and second bolt is set to gear structure, can be resisted against on the gear teeth of first bolt and second bolt by pin, and it is loosening to prevent that effectively first bolt and second bolt from taking place.Adjustment disk by the jackscrew device is set to gear structure, can be resisted against on the gear teeth of adjustment disk by pin, and it is loosening to prevent that effectively the jackscrew device from taking place.By position limit pin is set, and on link arm, offer curve bath on fitting seat, can cooperate, limit the slewing area of fitting seat with respect to link arm by curve bath and position limit pin.
The present invention also provides a kind of traffic tool, comprises traffic main body and television equipment, also comprises folding rack, and this folding rack can adopt the folding rack among the folding rack embodiment of the present invention; Television equipment is arranged in the fitting seat of folding rack, and the fixed base of folding rack is installed in the traffic main body.
Particularly, the concrete structure of the folding rack in the present embodiment can not repeat them here referring to the record of folding rack embodiment of the present invention and accompanying drawing 1-Figure 13.
The present embodiment folding rack, be provided with stop collar by fixed base, and the limiting stopper of rotating shaft on the link arm is slidingly installed in the restraining groove of stop collar, in the connecting rod of link arm rotates around the axis process, mating reaction by stop collar and limiting stopper, can effectively carry out spacing to the relation of the position between link arm and the fixed base, thereby after the user waits for TV the assembly pull-up by the link arm that rotates folding rack and supports, stop collar and limiting stopper will effectively carry out spacing to link arm and fixed base, effectively avoided causing the user to be waited for that by TV assembly injures by a crashing object because of factors such as vibrations cause link arm to rotate, thereby realized that folding rack can firm support fixation live parts to be installed, improved the reliability of folding rack.
It should be noted that at last: above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (10)
1. a folding rack is characterized in that, comprising: fixed base, link arm and fitting seat; Described fitting seat is provided with mounting groove, and described fitting seat is hinged on an end of described link arm; Be installed with connecting rod in the described link arm, described connecting rod stretches out the other end of described link arm and is provided with limiting stopper; Described fixed base comprises that cross section is the supporting frame of U-shaped, the stop collar that offers restraining groove and rotating shaft; The two ends of described stop collar are installed on the two side of support frame as described above, and described rotating shaft is located in the described stop collar and is hinged on the two described sidewalls; Described connecting rod passes described restraining groove and vertically is plugged in the described rotating shaft and is slidingly connected with described rotating shaft, and described limiting stopper is slidingly installed in the described restraining groove.
2. folding rack according to claim 1 is characterized in that, described limiting stopper is a quadrilateral structure, and wherein a relative edge is a linear structure, and another relative edge is an arc structure; Described restraining groove comprises rotation slot and the sliding-groove that is interconnected, and the sidewall of described rotation slot is a linear structure, and the sidewall of described sliding-groove is an arc structure;
Described connecting rod offers annular groove with the end that described rotating shaft is connected; Described rotating shaft offers first mounting hole and second mounting hole of mutual vertical connection, the axis of described first mounting hole and the axis normal of described rotating shaft; Described connecting rod is plugged in described first mounting hole, is inserted with locating column in described second mounting hole, and described locating column is slidingly installed in the described annular groove.
3. folding rack according to claim 1 and 2 is characterized in that, described link arm comprises first connecting cylinder and second connecting cylinder that vertically is solid-located mutually, and an end of described first connecting cylinder is provided with stepped coupling shaft; Offer the 3rd mounting hole that is communicated with described mounting groove on the described fitting seat; Described coupling shaft is located in described the 3rd mounting hole and extends in the described mounting groove; Be arranged with two friction plates on the described coupling shaft; The end that described mounting groove is connected with described coupling shaft is between two friction plates, and two friction plates closely are resisted against on the described mounting groove.
4. folding rack according to claim 3 is characterized in that, described link arm also comprises fastening block and jackscrew device; Offer through hole perpendicular to axial direction on the described fastening block, and offer first tapped hole along axial direction, described first tapped hole is communicated with described through hole; Described jackscrew device comprises adjustment disk and offer threaded cylinder, and described cylinder is installed on the described adjustment disk, and described cylinder is a sharp structure away from the end of described adjustment disk; Described fastening block is installed in the other end of described first connecting cylinder, and described cylinder is screwed onto in described first tapped hole;
Described connecting rod offers ball recess away from the end of described limiting stopper, and described connecting rod is located in the described through hole, and described sharp structure is resisted against in the described ball recess;
Described second connecting cylinder is installed with first air ring away from the end of described first connecting cylinder; Described fixed base also comprises first urceolus and second urceolus that is solid-located, the axis normal of the axis of described first urceolus and described second urceolus; Described first urceolus is set in the outside of described stop collar, and the end of described second urceolus is installed with second air ring; Described connecting rod is located in described first air ring and described second air ring; Be provided with friction plate between described first air ring and described second air ring, friction plate closely is resisted against on described first air ring and described second air ring.
5. folding rack according to claim 4 is characterized in that, is provided with friction plate between the sidewall of described rotating shaft and support frame as described above, and described friction plate closely is resisted against on the end face and described sidewall of described rotating shaft.
6. folding rack according to claim 5 is characterized in that, described fixed base comprises first bolt and second bolt that hand of spiral is opposite; Described first bolt and described second bolt pass the sidewall of support frame as described above and friction plate and described rotating shaft respectively and are spirally connected.
7. folding rack according to claim 6 is characterized in that, the head of described first bolt and described second bolt is gear structure; Offer first pin hole on the sidewall of support frame as described above, pin is resisted against on the gear teeth of described first bolt and described second bolt and is plugged in described first pin hole.
8. folding rack according to claim 1 and 2 is characterized in that described fitting seat is provided with position limit pin, offers curve bath on the described link arm, and described position limit pin is slidingly installed in the described curve bath.
9. folding rack according to claim 4 is characterized in that, the adjustment disk of described jackscrew device is a gear structure; Described fastening block offers second pin hole, and pin is resisted against on the gear teeth of described adjustment disk and is plugged in described second pin hole.
10. traffic tool comprise traffic main body and television equipment, it is characterized in that, also comprise arbitrary described folding rack as claim 1-9; Described television equipment is arranged in the fitting seat of described folding rack, and the fixed base of described folding rack is installed in the described traffic main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102234246A CN101881366B (en) | 2010-07-05 | 2010-07-05 | Folding bracket and transport |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102234246A CN101881366B (en) | 2010-07-05 | 2010-07-05 | Folding bracket and transport |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101881366A true CN101881366A (en) | 2010-11-10 |
| CN101881366B CN101881366B (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102234246A Active CN101881366B (en) | 2010-07-05 | 2010-07-05 | Folding bracket and transport |
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| Country | Link |
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| CN (1) | CN101881366B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102673588A (en) * | 2012-04-26 | 2012-09-19 | 青岛威奥轨道装饰材料制造有限公司 | Turnover foldable device and train |
| CN104654223A (en) * | 2013-11-22 | 2015-05-27 | 海洋王（东莞）照明科技有限公司 | Connection structure of lamp base and explosion-proof movable lamp with connection structure of lamp base |
| CN107693294A (en) * | 2017-11-21 | 2018-02-16 | 广东银狐医疗科技股份有限公司 | A kind of rotation-limited structure of dental chair support |
| CN107753237A (en) * | 2017-11-21 | 2018-03-06 | 广东银狐医疗科技股份有限公司 | A kind of swinging mounting of dental chair |
| CN107802454A (en) * | 2017-11-21 | 2018-03-16 | 广东银狐医疗科技股份有限公司 | A kind of integral type dental chair |
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| CN201745514U (en) * | 2010-07-05 | 2011-02-16 | 青岛威奥轨道装饰材料制造有限公司 | Folding bracket and vehicle |
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| US3638973A (en) * | 1969-06-04 | 1972-02-01 | Charles Ellis Poletti | Joint means for use in work supporting arm |
| CN2677725Y (en) * | 2004-02-13 | 2005-02-09 | 宁波甬光照明电器有限公司 | Rotation mounting support |
| CN101256845A (en) * | 2007-02-28 | 2008-09-03 | 裕威电子股份有限公司 | Support frame |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673588A (en) * | 2012-04-26 | 2012-09-19 | 青岛威奥轨道装饰材料制造有限公司 | Turnover foldable device and train |
| CN102673588B (en) * | 2012-04-26 | 2015-04-22 | 青岛威奥轨道装饰材料制造有限公司 | Turnover foldable device and train |
| CN104654223A (en) * | 2013-11-22 | 2015-05-27 | 海洋王（东莞）照明科技有限公司 | Connection structure of lamp base and explosion-proof movable lamp with connection structure of lamp base |
| CN104654223B (en) * | 2013-11-22 | 2019-01-15 | 海洋王（东莞）照明科技有限公司 | The explosion-proof movable lamps of the connection structure of lamp cap and the connection structure using the lamp cap |
| CN107693294A (en) * | 2017-11-21 | 2018-02-16 | 广东银狐医疗科技股份有限公司 | A kind of rotation-limited structure of dental chair support |
| CN107753237A (en) * | 2017-11-21 | 2018-03-06 | 广东银狐医疗科技股份有限公司 | A kind of swinging mounting of dental chair |
| CN107802454A (en) * | 2017-11-21 | 2018-03-16 | 广东银狐医疗科技股份有限公司 | A kind of integral type dental chair |
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| Publication number | Publication date |
|---|---|
| CN101881366B (en) | 2012-06-27 |
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Address after: 266108 Shandong city of Qingdao province Chengyang Sea Economic Development Zone Xinghai branch No. 2 Patentee after: Qingdao victall railway Limited by Share Ltd Address before: Chengyang District of Shandong province 266108 Qingdao Huanhai Economic Development Zone Xinghai branch No. 3 Patentee before: Qingdao Victall Railway (Group) Co., Ltd. |