CN201425053Y

CN201425053Y - Rapid hand-operated locking screw

Info

Publication number: CN201425053Y
Application number: CN2009201391469U
Authority: CN
Inventors: 王巍; 张建育
Original assignee: XIAMEN YINGFA INDUSTRIAL Co Ltd
Current assignee: XIAMEN YINGFA INDUSTRIAL Co Ltd
Priority date: 2009-06-19
Filing date: 2009-06-19
Publication date: 2010-03-17
Anticipated expiration: 2019-06-19

Abstract

The utility model discloses a rapid hand-operated locking screw, which comprises a screw head, a screw rod and a torsion handle. The screw head and the screw rod are formed integrally; a through holeperpendicular to the screw rod is arranged on the head portion of the screw; the torsion handle consists of a hand holding component and a butt joint component which are formed integrally; the butt joint component disposed inside the through hole is capable of radially moving along the bore diameter of the through hole and axially rotating. As the butt joint component of the torsion handle of thescrew is capable of sliding inside the through hole, when locking the screw, users only need to radially move the torsion handle along the through hole to a corresponding position so as to enlarge thetorque of the torsion handle, thereby the users can save labor and lock connecting parts firmly. As the hand holding component is in an M shape, the area for fingers to touch is enlarged so as to enable the users to exert force better when in use; simultaneously, the strength of the torsion handle is increased to enable the hand holding component to be not easily deformed relatively to the butt joint component and improve the reliability of the use of the torsion handle.

Description

Hand is locked screw fast

Technical field

The utility model relates to bolt structure, particularly relates to a kind of bolt structure of quick hand lock.

Background technique

As everyone knows, screw is the most frequently used in the connected component, common screw generally comprises screw head and screw rod, the two is one-body molded, the end of screw head is provided with a word or cross recess, to rotate to drive the screw precession in the instrument insertion grooves that match such as screw-driver during use, reach the purpose of connected component.

For the ease of transportation, reduce cost of transportation, many out-of-shapes or large piece product, manufacturer all breaks product component as far as possible, to reduce the volume of the packing of product, assemble again during use, especially desk-top TV, bicycle and the toy of family expenses adopt this mode especially.Assemble whenever and wherever possible for the convenience of the users, be not subjected to the restriction of instrument, bolt structure one has as shown in Figure 1 and Figure 2 been arranged on the market, screw comprises screw head 1, screw rod 2 and turns round handle 3, and these screw head 1 two ends are provided with circular hole clipping 111, and hole clipping is the region between the heart and the diaphragm hole; Turn round handle 3 part-annulars, two terminal horizontal relatively and be fastened in the circular hole clipping at screw head two ends and can be around the circular hole clipping axial rotation of screw head; During use, will turn round handle 3 upset and erect, firmly rotation can drive screw turns, plays the effect of screw-driver, will turn round handle 3 after using again and turn to level, makes to turn round the recline bottom of coupling member of handle, does not need additionally to take up room.Also has a kind of bolt structure two as shown in Figure 3, Figure 4, screw head 1 and screw rod 2 adjacent end faces are provided with the groove 10 of symmetry, the middle part is provided with boss 13, the two ends of turning round handle are fastened on respectively in the groove 10, be provided with boss 13 friction tight through holes 40 in the middle of one fixed plate 4 with screw head, its two ends and screw head groove corresponding section are provided with the groove 41 of stepping down, and the bottom of the groove 41 of stepping down is a spring sheet 42, and the two ends of turning round handle all are fastened in the space that groove 10 and spring sheet 42 constituted; Because the compressing of spring sheet 42, turning round handle needs just to turn under the situation of external force being subjected to; To turn round handle during use and turn to setting and rotation, can drive screw precession and back-out, serve as instruments such as screw-driver, will turn round handle after finishing using again and be turned into level, promptly parallel with the screw head end face, itself and coupling bottom are reclined, additionally do not take up room.The screw of these two kinds of structures had both made things convenient for user's use, had reduced the volume of product again.

Yet in use, it is found that also there is following shortcoming simultaneously in this screw: one, to turn round handle less for ring-type, can only pinch with finger during use, it is inconvenient to exert oneself with the surface of contact of pointing is too little, if the parts for important structure connect insecure, unreliable, will in use cause danger, produce more serious consequence; Two, as shown in Figure 5, the turning radius a that turns round handle is a definite value, therefore moment of torsion is fixing, can not change as required, if the needs that connect according to parts increase moment of torsion will increase the width of turning round handle and meet the demands, and turn round the increasing of handle turning radius a value and to cause the screw periphery that the bigger bit space that allows is arranged; Three, the hole clipping of screw head is the region between the heart and the diaphragm hole, and turning round handle can only be around the through hole axial rotation of screw head; Four, not only complex structure, difficult production of bolt structure two, and cost of production is also very high, is not easy to apply.

The model utility content

In order to address the above problem, the utility model provide a kind of simple in structure, use reliable, increase finger with turn round the handle area of contact easy to use, need not increase the width of turning round handle and can change the quick hand lock screw that arm of force length increases moment of torsion as required yet.

The technological scheme that its technical problem that solves the utility model adopts is: hand is locked screw fast, comprises screw head, screw rod and turns round handle, and screw head and screw rod are one-body molded, and screw head is provided with the through hole vertical with screw rod; Turn round handle and be made of hand part and end-to-end joint part, the two is one-body molded, the through hole transition fit of end-to-end joint part and screw head, and turning round handle can move radially along the through hole of screw head and axial rotation.

The described handle of turning round, its hand part are M shape or concave shape.

The described handle of turning round, the two-end-point level of its end-to-end joint part welds together relatively.

The described handle of turning round, the two-end-point level of its end-to-end joint part is relative, and in the position projection of respectively limiting away from the end points both sides.

Described screw, the end of its screw head are provided with a word or cross recess or are provided with interior hexagonal groove.

Advantage of the present utility model from the above is: owing to turn round the end-to-end joint part of handle and the through hole transition fit of screw head, this cooperation has only the application of force a little, just can allow and turn round handle mobile or rotation in the screw head through hole, turning round handle can arbitrarily not move radially or axial rotation along the screw head through hole, therefore guaranteed to turn round handle Security in use, can not damage product or component because of arbitrarily rotating.When completed knocked down products, only need to turn round the handle upset and erect, and move on to corresponding position along the screw head through hole and just can increase the moment of torsion of turning round handle, allow not only laborsaving but also the locking coupling that can be firm of user; And because the arm of force can change, turn round handle and can adjust with respect to the radius of gyration in screw rod axle center, in actual use, the user is adjusted to minimum with the radius of gyration as required, has increased the space of other structure like this.And the hand part of turning round handle is M or character cut in bas-relief shape, has in use not only increased the area of finger contact, allows the user better exert oneself, and has also increased the intensity of turning round handle simultaneously, makes relative end-to-end joint part, hand part more not yielding, has increased and has turned round the reliability that handle uses.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 has illustrated the generalized section of existing bolt structure one;

Fig. 2 has illustrated the perspective view of existing bolt structure one;

Fig. 3 has illustrated the perspective view of existing bolt structure two;

Fig. 4 has illustrated the three-dimensional exploded view of existing bolt structure two;

Fig. 5 has illustrated and has turned round the relative screw rod of handle axle center in the existing bolt structure one, two, and its turning radius is fixing structural representation;

Fig. 6 has illustrated embodiment one generalized section;

Fig. 7 turns round the stereogram that handle moves to the other end for relative Fig. 6;

Fig. 8 is used to connect the structural representation of LCD TVs complete machine and base Weight plate for embodiment one;

Fig. 9 is a screw locking base Weight plate schematic representation among Fig. 8;

Figure 10 in use turns round the variable as required structural drawing of handle turning radius for embodiment one;

Figure 11 turns round the view that handle is turned to horizontal position behind embodiment's one locking LCD TVs complete machine and the base Weight plate;

Figure 12 has illustrated embodiment two generalized section;

Figure 13 is in the phase diagram of screw rod leftward position for turning round handle;

Figure 14 is in the phase diagram of screw rod neutral position for turning round handle;

Figure 15 is in the phase diagram of screw rod right positions for turning round handle.

Embodiment

Embodiment one, please refer to Fig. 6, shown in Figure 7, hand lock screw comprises screw head 1, screw rod 2 and turns round handle 3 fast, and screw head 1 is one-body molded with screw rod 2, and the end of screw head 1 is provided with a word groove 11, and is provided with the through hole vertical with screw rod 12; Turning round handle 3 is made of hand part 31 and end-to-end joint part 32, the two is one-body molded, hand part 31 is the M shape, the two-end-point 33 of end-to-end joint part 32 welds together, and be located in the through hole, end-to-end joint part 32 is a transition fit with the through hole 12 of screw head 1, turning round handle 3 like this can move radially and axial rotation along the screw head through hole, all need to apply external force and just can produce but rotate still to move, can not allow and turn round handle 3 random in through hole, moving or rotating.

In the using process, turning round handle 3 is that rotate in the axle center with end-to-end joint part 32, both can erect, and as shown in Figure 6, pinches hand part 31 with hand and rotates and turn round handle and just can drive screw precession or back-out; When need increasing moment of torsion, move on to corresponding position, as shown in Figure 7, just can strengthen the arm of force, allow not only laborsaving but also the locking component that can be firm of user to reach purpose with turning round the through hole 12 of handle 3 along screw head 1; And owing to the arm of force can change, around the screw to allow bit space also not need too big, as shown in Figure 8, bolt structure with embodiment one connects liquid crystal base and complete machine 6, base is provided with Weight plate, it plays the effect of supporting and firm complete machine, because screw locking is on the Weight plate of base, therefore the intensity of Weight plate 5 is even more important, and reaches requirement so the Designer is provided with plurality of strengthening ribs 51 with Weight plate, as shown in Figure 9, if make bit space too big around the screw, 51 need of the stiffening rib length of Weight plate change little, so just influence the intensity of Weight plate, and are yielding.Adopt embodiment once bolt structure can address this problem, as shown in figure 10, because turning round handle can move radially along the through hole of screw head, that is to say that turning round the handle two ends is variable, adjustable around the radius b and the c of the rotation of screw rod axle center, it can move the position of turning round handle according to demand reducing to turn round the space of handle rotation, collides with contiguous stiffening rib when avoiding rotating; After screw screws, will turn round handle and turn to horizontal position, as shown in figure 11, so just do not need additionally to take up room; And the hand part 31 of turning round handle 3 is the M shape, has not only increased the area of finger contact during use, allows the user better exert oneself, and has also increased the intensity of turning round handle 3 simultaneously, makes 31 relative end-to-end joint parts 32, hand part more not yielding, has increased and has turned round the reliability that handle 3 uses.Especially now advocate the DIY operation that uses one's hands and brains of controlling oneself, the user need not can operate by instrument, and therefore the screw of this structure can extensively be promoted the use of in household electrical appliances, furniture or toy especially.

Embodiment two, as shown in figure 12, executing example one difference with enforcement is: the described handle 3 of turning round, two-end-point 33 levels of its end-to-end joint part 32 are relative, and be provided with a spacing preiection 34 away from the end points both sides, spacing preiection 34 plays restriction and turns round handle 3 in screw head 1 through hole 12 when radially mobile, its two-end-point 33 is in the through hole 12 all the time, can not expose, rotate two-end-point 33 dislocation incised wound hands when stressed to prevent to turn round handle, as Figure 13,14, shown in 15, no matter turn round handle is to the screw rod left side, still move on the right side, and the two-end-point 33 of its end-to-end joint part is positioned at the through hole of screw head always.

The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. hand is locked screw fast, comprises screw head, screw rod and turn round handle that screw head and screw rod are one-body molded, it is characterized in that: screw head is provided with the through hole vertical with screw rod; Turn round handle and be made of hand part and end-to-end joint part, the two is one-body molded, the through hole transition fit of end-to-end joint part and screw head, and turning round handle can move radially along the through hole of screw head and axial rotation.

2. quick hand lock screw according to claim 1, it is characterized in that: the described handle of turning round, its hand part are M shape or concave shape.

3. quick hand lock screw according to claim 1, it is characterized in that: the described handle of turning round, the two-end-point level of its end-to-end joint part welds together relatively.

4. quick hand lock screw according to claim 1 is characterized in that: the described handle of turning round, and the two-end-point level of its end-to-end joint part is relative, and in the position projection of respectively limiting away from the end points both sides.

5. quick hand lock screw according to claim 1, it is characterized in that: described screw, the end of its screw head are provided with a word or cross recess or are provided with interior hexagonal groove.