High-strength compression-resistant pull rod for luggage
Technical Field
The utility model relates to a pull rod technical field for the case and bag especially relates to a high strength resistance to compression pull rod for case and bag.
Background
Along with the promotion of people's quality of life, when people's leisure or business trip, can often use case and bag, therefore each item performance of case and bag is very important to the user, and at the in-process of using, especially for the case and bag of big model, because the thing is more in the case and bag, consequently at the in-process of dragging, the draw bar case and bag need bear great pressure and pulling force.
Patent number CN209450007U discloses a high strength pull rod for case and bag, belongs to case and bag technical field. It has solved current pull rod intensity low, has adjusted inconvenient class of technical problem. The utility model provides a high strength pull rod for case and bag, includes handle, telescopic link and fixed block, has seted up the through-hole on the fixed block, and the one end of telescopic link penetrates the through-hole and fixes on the fixed block, the handle fix the other end at the telescopic link, the handle can be close to the fixed block, the telescopic link in be provided with the stiffener, a plurality of spacing holes have been seted up to the surface equidistance of telescopic link, the fixed block on be fixed with the casing, the cavity has in the casing, the opening that communicates with the cavity is seted up to the casing upper surface, is provided with two sliders in the cavity, the upper end of slider is fixed with manual plectrum, stretches out from the opening manual plectrum upper end, the casing both ends seted up the slide opening, slide in the slide opening and be provided with the slide bar.
The high-strength compression-resistant pull rod for the luggage in the prior art has the following defects: 1. the existing luggage pull rod is generally integrally formed by aluminum alloy, so that the phenomenon of bending and breaking of the pull rod can occur in the using process, the luggage needs to be maintained, or the luggage is directly discarded, and the service life of the luggage is reduced; 2. Case and bag pull rod is when using, just through improving the pull rod rigidity to the shock attenuation of pull rod and stop gear to and realize the shock attenuation to the pull rod through install the stop collar additional in the loose axle sleeve of pull rod, demand when its shock attenuation effect can't satisfy in-service use, demand when the life of pull rod also can't satisfy in-service use.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high strength resistance to compression pull rod is used to case and bag is provided with the stiffener in the inside of first telescopic link and second telescopic link, can be so that the telescopic link can not take place bending deformation at tensile in-process, improves the intensity of telescopic link, even be equipped with heavier thing at case and bag inside and also can not take place to warp, installs damping device in the mounting groove for the telescopic link is more steady at tensile in-process, improves the life of pull rod.
The utility model provides a specific technical scheme as follows:
the utility model provides a pair of high strength resistance to compression pull rod is used to case and bag, comprising a fixing base plate, PMKD's upper end fixedly connected with third telescopic link, the inside cover in upper end of third telescopic link is established and is connected with the second telescopic link, the inside cover in upper end of second telescopic link is established and is connected with first telescopic link, the upper end fixedly connected with hand lever of first telescopic link, the intermediate position of hand lever is provided with the rubber handle, control button is installed to the centre of rubber handle, the third telescopic link runs through the fixed bolster, be provided with the mounting groove on the fixed bolster.
Optionally, both ends of the fixing bottom plate and the fixing support are provided with threaded holes, the threaded holes are respectively and threadedly connected with fixing screws a and fixing screws b, the fixing bottom plate and the fixing support are fixed to the back of the box body through the fixing screws a and the fixing screws b, and the lower end of the box body is fixedly connected with the roller.
Optionally, a reinforcing rod a is arranged inside the first telescopic rod, a reinforcing rod b is arranged inside the lower end of the second telescopic rod, a fixing block a is fixedly connected inside the lower end of the second telescopic rod, a fixing block b is fixedly connected to the lower end of the second telescopic rod, and the reinforcing rod b penetrates through the fixing block a and the fixing block b.
Optionally, the reinforcing rods a and b are hollow round tubes.
Optionally, the third telescopic link runs through the mounting groove, the inside of mounting groove is provided with damping device, the inside stopper an that is provided with of mounting groove, the one end fixedly connected with bracing piece that the third telescopic link was kept away from to stopper a, two damping spring a of one end fixedly connected with that stopper a was kept away from to the bracing piece, damping spring a fixed connection is inside the sleeve, sleeve fixedly connected with stopper b, stopper b fixed connection is on the inner wall of mounting groove, the telescopic outside is provided with damping spring b.
The utility model has the advantages as follows:
the embodiment of the utility model provides a high strength resistance to compression pull rod is used to case and bag:
1. when the device is used, the telescopic rods can be stretched by pressing a control button in the middle of the hand pull rod, three telescopic rods are arranged in the device, the first telescopic rod, the second telescopic rod and the third telescopic rod are sequentially sleeved and connected together, reinforcing rods are arranged in the first telescopic rod and the second telescopic rod, the reinforcing rods enable the telescopic rods not to be easily deformed in the stretching use process, the strength of the pull rod is increased, and the original shape can be kept even if heavy objects are arranged in the luggage; the middle part of the hand lever is provided with a rubber grip which can prevent slipping when a pull rod is used.
2. The upper end of third telescopic link runs through the mounting groove on the fixed bolster, the inside of mounting groove is provided with damping device, damping device installs in the both sides of third telescopic link, and at the telescopic link by tensile in-process, damping spring an and damping spring b can support stopper an on the surface of third telescopic link for the telescopic link keeps steadily when tensile, at the in-process of pulling case and bag, also can guarantee the steady of telescopic link, reduces the wearing and tearing of vibration to the telescopic link, improves the life of telescopic link.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a high-strength compression-resistant pull rod for bags and suitcases according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a shock-absorbing device of a high-strength compression-resistant pull rod for bags and suitcases according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a reinforcing rod b of a high-strength compression-resistant pull rod for luggage according to an embodiment of the present invention;
in the figure: 1. a box body; 2. a rubber grip; 3. a control button; 4. a hand lever; 5. a reinforcing rod a; 6. A first telescopic rod; 7. a second telescopic rod; 8. a fixing screw a; 9. a third telescopic rod; 10. a fixing screw b; 11. fixing the bottom plate; 12. fixing a bracket; 13. mounting grooves; 14. a limiting block a; 15. a support bar; 16. a limiting block b; 17. a damping spring a; 18. a damping spring b; 19. a reinforcing rod b; 20. a fixed block a; 21. a fixed block b; 22. a roller; 23. a sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The high-strength compression-resistant pull rod for luggage according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 3.
Referring to fig. 1, the embodiment of the utility model provides a high strength resistance to compression pull rod is used to case and bag, including PMKD 11, PMKD 11's upper end fixedly connected with third telescopic link 9, the inside cover in upper end of third telescopic link 9 is established and is connected with second telescopic link 7, the inside sliding connection in upper end of second telescopic link 7 has first telescopic link 6, the upper end fixedly connected with hand lever 4 of first telescopic link 6, the intermediate position of hand lever 4 is provided with rubber handle 2, control button 3 is installed to the centre of rubber handle 2, third telescopic link 9 runs through fixed bolster 12, be provided with mounting groove 13 on the fixed bolster 12.
The example is that a first telescopic rod 6, a second telescopic rod 7 and a third telescopic rod 9 are sequentially sleeved and connected in the pull rod, the pull rod 4 can control the stretching of the telescopic rods, and a rubber grip 2 is arranged in the middle of the pull rod, so that the friction force can be increased, and the slip is prevented.
Referring to fig. 1, both ends of the fixing base plate 11 and the fixing bracket 12 are provided with screw holes, and a fixing screw a8 and a fixing screw b10 are respectively screwed inside the screw holes, the fixing screw a8 and the fixing screw b10 fix the fixing base plate 11 and the fixing bracket 12 to the back of the box body 1, and the roller 22 is fixedly connected to the lower end of the box body 1.
Illustratively, the fixing base plate 11 and the fixing bracket 12 are mounted on the rear surface of the case 1 using fixing screws, thereby fixing the draw bar.
Referring to fig. 1, a reinforcing rod a5 is arranged inside the first telescopic rod 6, a reinforcing rod b19 is arranged inside the lower end of the second telescopic rod 7, a fixing block a20 is fixedly connected inside the lower end of the second telescopic rod 7, a fixing block b21 is fixedly connected to the lower end of the second telescopic rod 7, and the reinforcing rod b19 penetrates through the fixing block a20 and the fixing block b 21.
In an example, the reinforcing rods are arranged inside the first telescopic rod 6 and the second telescopic rod 7, so that the pull rod is not prone to deformation in the using process, and the strength of the pull rod is increased.
Referring to fig. 1, the reinforcing rods a5 and b19 are hollow round tubes.
In an example, the reinforcing rod is a hollow round pipe, so that the weight of the whole device can be reduced.
Referring to fig. 1, the third telescopic link 9 runs through the mounting groove 13, the inside of mounting groove 13 is provided with damping device, the inside of mounting groove 13 is provided with stopper a14, the one end fixedly connected with bracing piece 15 that third telescopic link 9 was kept away from to stopper a14, two damping spring a17 of one end fixedly connected with that stopper a14 were kept away from to bracing piece 15, damping spring a17 fixed connection is inside sleeve 23, sleeve 23 fixedly connected with stopper b16, stopper b16 fixed connection is on the inner wall of mounting groove 13, the outside of sleeve 23 is provided with damping spring b 18.
The example, install damping device in mounting groove 13, damping device's stopper a14 is compressed tightly by the shock attenuation spring and is supported in the both sides of third telescopic link 9 for the telescopic link keeps steady at tensile process, reduces the wearing and tearing that produce in the use, improves pull rod life.
When the telescopic handle is used, the telescopic rod can be pulled out by pressing the control button 3 in the middle of the hand pull rod 4, and the rubber handle 2 is arranged on the hand pull rod 4, so that the friction force of the hand pull rod can be increased, and the hand is prevented from slipping due to sweating; the pull rod comprises three telescopic rods, namely a first telescopic rod 6, a second telescopic rod 7 and a third telescopic rod 9, wherein the three telescopic rods are sequentially sleeved and connected together. The lower end of the third telescopic rod 9 is fixedly connected to the fixed bottom plate 11, the upper end of the third telescopic rod 9 penetrates through the fixed support 12, threaded holes are formed in the fixed bottom plate 13 and the fixed support 12, fixing screws are connected in the threaded holes in a threaded manner, the fixed bottom plate 13 and the fixed support 12 are installed on the back face of the box body 1 through the fixing screws, so that the pull rod is fixed on the box body 1, the firmness and reliability of the pull rod are guaranteed, an installation groove 13 is formed in the fixed support 12, a damping device is arranged inside the installation groove 13, a limiting block b16 of the damping device is fixedly connected to the inner wall of the installation groove 13, a limiting block a14 of the damping device is tightly pressed on the surfaces of the two sides of the third telescopic rod 9 through a damping spring, the telescopic rod is kept stable in the stretching process, vibration can be generated in the process of pulling the telescopic rod, the damping device can guarantee the stability of the telescopic rod, and reduce the abrasion of the telescopic rod caused by the vibration, the service life of the telescopic rod is prolonged; in addition, be provided with the stiffener in first telescopic link 6 and the inside of second telescopic link 7, the stiffener can strengthen its intensity in the telescopic link use, prevents that the telescopic link from taking place bending deformation, even the inside heavier thing that is equipped with of box 1 also can not take place to warp.
The utility model relates to a high-strength compression-resistant pull rod for bags and suitcases, which comprises a box body 1; 2. A rubber grip; 3. a control button; 4. a hand lever; 5. a reinforcing rod a; 6. a first telescopic rod; 7. a second telescopic rod; 8. a fixing screw a; 9. a third telescopic rod; 10. a fixing screw b; 11. fixing the bottom plate; 12. fixing a bracket; 13. mounting grooves; 14. a limiting block a; 15. a support bar; 16. a limiting block b; 17. A damping spring a; 18. a damping spring b; 19. a reinforcing rod b; 20. a fixed block a; 21. a fixed block b; 22. a roller; 23. the structure and principle of the sleeve, components are known to those skilled in the art from technical manuals or from routine experimentation.
It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.