TWM567316U - Safety hook - Google Patents

Abstract

The present invention relates to a safety hook, which changes the relationship between the hook body, the valve and the control handle, and further presses and forms a recess on the outer surface of the two panels to control the inner surface of the two panels. a limiting block having upper and lower opposite upper and lower blocking surfaces, and further controlling the upper and lower blocking surfaces to be perpendicular to the enclosure for supporting the stress of the valve being accidentally opened The surface and the lower stop surface can stably transfer the stress between the hook body and the valve, so that the valve and the restriction block have the progress of being difficult to deform and the service life is long, and the overall safety of use is greatly improved.

Description

Safety hook

The novel provides a safety hook with better structure, long service life and economical manufacturing requirements.

The prior art is as shown in US7437806 "Safety hook". The case control (31) is used to lock the valve (41) through the cylindrical limit post (32) to prevent accidental opening of the opening (20), but When the valve (41) is subjected to the stress of the accidental contact, the limit between the limit column (32) and the valve (41) is "linear" to withstand the stress, and the stability of the stress is relatively reduced due to the small contact area. As a result, the valve (41) is easily deformed due to stress concentration, and the deformation problem directly affects the smoothness of the valve (41) or the control handle (31), and the valve (41) or the control handle (31) , can not continue to use.

Please refer to Figures 1 and 2, which are the main structural diagrams of the US 20120042487 "Double locking snap hook device background of the invention", which controls the 90 series into a frame of a 断面-shaped section, and has a position end plate 91 and The two panels 92 are stamped with a recess 93 on the outer surface of the end plate 91 for projecting a restriction block 94 on the inner surface of the end plate 91. The restriction block 94 is used to withstand the stress of the accidental opening, but the end plate 91 is connected. The corner portion S of the block 94 is restrained, and the internal stress of the punching pocket 93 and the inner end of the bent end plate 91 are present. The force, the double internal stress greatly affects the structurality of the restricting block 94, causing the corner block S to be torn or deformed when the restraining block 94 is subjected to stress.

The main content of the new type is to change the relationship between the hook body, the valve and the control handle, and further to press and form a concave hole on the outer surface of the two panels, and to protrude the opposite restriction block on the inner surface of the two panels. The limiting block has upper and lower opposite upper and lower blocking surfaces, and further controls the upper and lower blocking surfaces to be perpendicular to the enclosure, for supporting the upper and lower surfaces of the valve when the stress of the valve is accidentally touched The system can stably transfer the stress between the hook body and the valve, so that the valve and the limiting block can be easily deformed and the service life is long, and the damage of the corner portion of the US 20120042487 can be further improved, and the damage is greatly improved. Overall use security.

10‧‧‧ hook body

11‧‧‧ hook hole

110‧‧‧Hook

12‧‧‧Hook mouth

121‧‧‧ buckle

13‧‧‧ shaft seat

14‧‧‧ first hole

15‧‧‧First space

16‧‧‧Second space

17‧‧‧掣面面

171‧‧‧ card block

18‧‧‧ second hole

19‧‧‧ hanging holes

20‧‧‧ valve

21‧‧‧ motherboard

211‧‧‧ buttonhole

22‧‧‧ visor

23‧‧‧ third hole

24‧‧‧ first axis

25‧‧‧First spring

26‧‧‧Baffle

27‧‧‧Fracture

30‧‧‧Control

31‧‧‧End plate

32‧‧‧

33‧‧‧ fourth hole

34‧‧‧second axis

35‧‧‧Restriction block

350‧‧‧ recess

351‧‧‧Upper face

352‧‧‧ Lower stop

353‧‧‧Upper cut

354‧‧‧ lower cut

36‧‧‧Second spring

37‧‧‧Necking area

38‧‧‧ reinforcement bolt

381‧‧‧5 hole

Conventional part:

90‧‧‧Control

91‧‧‧End board

92‧‧‧

93‧‧‧ recess

94‧‧‧Restriction block

S‧‧‧ corner area

The first and second figures are schematic diagrams of the control structure of the US 20120042487 case.

Figure 3 is a schematic exploded view of the present invention.

Figure 4 is a partial schematic view of the longitudinal section of the novel control.

Figure 5 is a top plan view of the transverse section of the novel control.

Figure 6 is a schematic view of the three-dimensional combination of the present invention.

Figure 7 is a partial cross-sectional view of Figure 6.

Figure 8 is a schematic front elevational view of the novel valve when it is locked.

Figure 9 is a schematic diagram showing the relative position of the novel release restriction block.

Figure 10 is a schematic view of the relative position of the present invention when the valve is opened.

Referring to Figures 3 to 10, the present invention includes at least a hook body 10 having a hook hole 11 extending through the front and rear sides, and a hook opening 110 having a connecting hook hole 11 on one side, and defining a sentence. Above the 110 is a hook-and-loop 12, and the hook-and-loop 12 is provided with a buckle block 121 at a position adjacent to the hook-hole 11 . The front and rear sides of the hook body 10 are symmetrically protruded below the hook-port 110 to form a shaft seat 13 and are arranged at the shaft seat. A first hole 14 is defined in the range of 13; the hook body 10 is further recessed with a first space 15 extending through the front and rear faces, and a second space 16 above the first space 15, the bottom of the first space 15 The end is defined as a swaying surface 17, and the outer end edge of the swaying surface 17 is provided with a yoke block 171 which symmetrically protrudes the front and rear sides of the hook body 10, and the slanting surface 17 and the squeezing block 171 are viewed from above. The hook body 10 is further provided with a second hole 18 extending through the front and rear faces at the intersection of the first space 15 and the second space 16. The hook body 10 is provided with a front and a rear through the bottom edge. a two-sided hanging hole 19; a valve 20, which is a hollow frame having a substantially 断面-shaped cross section, having a main plate 21 spanning the hook opening 110, and two ends symmetrically covering the first hole 14 The main board 21 is provided with a buttonhole 211 which can be combined with the buckle block 121. The width of the groove formed by the two shutters 22 is relatively larger than the thickness formed by the front and rear sides of the hook body 10. The third hole 23 matching the first hole 14 is coupled to the first hole 14 and the third hole 23 by the first shaft 24, so that the valve 20 can swing around the first shaft 24, and the button hole 211 is operated to buckle. a block 121 for opening and closing the hook opening 110; the shaft seat 13 is wound around the first spring 25, the first One end of the spring 25 abuts against the hook body 10, and the other end provides the pre-pressure of the valve 20, so that the buckle hole 211 has the potential of the combination buckle 121 at any time to form the first segment positioning structure for maintaining the closing hook hole 11; The baffle 22 is provided with a baffle 26 along the front and rear sides of the hook body 10, so that the bottom end of the baffle 26 is just above the latching block 171, and the flange 27 and the baffle 26 are provided with a flange 27 at the joint. The structure of the baffle 22 and the baffle 26 is strengthened, and the groove width formed by the two baffles 26 can be further controlled to be necked by the two baffles 22 so as to be approximately equal to the thickness of the hook body 10, so that the two The baffle 26 can be slid on the front and rear sides of the hook body 10 to perform limit sliding, so that the valve 20 has a better hand feeling when the hook 20 is opened and closed, and a control handle 30 is a generalized ㄇ The frame of the profiled section has an end plate 31 which is open across the first space 15 and the second space 16, and two surrounding plates 32 symmetrically covering the two ends of the second hole 18, so that the two panels 32 are formed. The groove width is just enough to cover the card block 171 and the two baffles 26 therein, and the two coaming plates 32 are provided with a fourth hole 33 matching the second hole 18 at a middle position for the second 34 is pivoted to the second hole 18 and the fourth hole 33, so that the control handle 30 can swing around the second shaft 34. Please cooperate with the third, fourth, fifth, seventh and eighth views, and the outer surface of the two panels 32 is The position of the first space 15 is stamped and formed with opposing trapezoidal cavities 350 for projecting a correspondingly shaped restricting block 35 on the inner surface of the shroud 32. The restricting block 35 is formed with upper and lower opposite upper facing surfaces 351 and lower. The upper surface 351 and the lower surface 352 are sheared by the punching die, and the upper cutting opening 353 is formed at the intersection of the top end of the recess 350 and the upper surface 351, and the recess 350 is formed. A lower cut port is formed at a junction between the bottom end and the lower stop surface 352 354, the upper shearing opening 353 and the lower shearing opening 354 are longitudinally and symmetrically communicating with the inside and outside of the recessed pocket 350, so as to eliminate the arc angle naturally generated during the stamping process of the upper stop surface 351 and the lower stop surface 352, because When the sheet metal drawing restriction block 35 is formed by the stamping die, an arc angle is formed at the interface between the surface of the restricting block 35 and the panel 32. For the same reason, the present invention connects the panel 32 to each side of the restricting block 35. The corner portion must also generate an arc angle. The present invention uses the upper shearing opening 353 and the lower shearing opening 354 to remove the arc angle, thereby controlling the upper blocking surface 351 and the lower blocking surface 352 to be perpendicular to the surrounding panel 32, so that the upper blocking surface The 351 and the lower stop surface 352 are less likely to generate a horizontal component when the stress is transmitted, so as to maintain the structure of the baffle 26 and the restricting block 35. Specifically, if the two upper blocking faces 351 are connected to the corners of the coaming plate 32, At the arc angle, during the stress-bearing process, it is easy to guide the bottom end of the two baffles 26 to deform toward each other, causing the two baffles 26 to interfere with the front and rear surfaces of the hook body 10. Therefore, the present invention defines the upper baffle 351 and the lower side. The face 352 is perpendicular to the louver 32, which is a necessary core technology. The use of the upper shearing port 353 and the lower shearing port 354 to achieve the above-mentioned core technology is more economical to manufacture today; the second shaft 34 is wound around the two surrounding plates 32 with a second spring 36. One end of the two springs 36 abuts against the hook body 10, and the other end of the top push control handle 30 end plate 31, the upper stop surface of the dam interlocking block 35 is held under the baffle 26, and the lower lower stop surface 352 is kept at the 掣The moving surface 17 and the lower portion of the clamping block 171 are configured to constitute a second positioning structure for ensuring the locking hook 110 of the valve 20, and the regulating handle 30 can only swing in the direction of the second space 16 centering on the second shaft 34; The top edge of the two panels 32 is formed with a necking region 37 to make it approximate to the hook body. 10 thickness is equivalent, so that the necking zone 37 can be attached to the front and rear sides of the hook body 10 for the limit slip, and can enter and exit between the two shutters 22, so as to avoid interference, and the present invention is to strengthen the two The louver 32 is structurally stressed. The louver 32 has a fifth hole 381 disposed above the limiting block 35 for bridging a reinforcing bolt 38. The reinforcing bolt 38 is located opposite the bottom end of the baffle 26.

Please cooperate with Figures 3, 9 and 10. If you want to open the hook 110, you must first press the top handle to enter the second space 16 so that the limit block 35 of the bottom edge of the handle 30 is in the case of no interference. Swinging toward the opening direction of the first space 15 allows the restricting block 35 to be disengaged from the position between the bottom end of the baffle 26 and the latching block 171 for releasing the locked state of the valve 20, and then the valve 20 can be operated toward the hook hole 11 The swinging opening hook 110 allows it to be unloaded or loaded.

According to the above structural description, the present invention has at least the following features:

1. The present invention is designed such that the upper cutting opening 353 eliminates the curved forming arc angle generated by the connecting portion of the upper blocking surface 351 and the surrounding plate 32, and the lower cutting opening 354 eliminates the lower blocking surface 352 and the surrounding plate. The curved forming arc angle generated by the connecting portion 32 is effective to control the upper blocking surface 351 and the lower blocking surface 352 perpendicular to the surrounding panel 32, so that the upper blocking surface 351 and the lower blocking surface 352 are subjected to the stress of the valve 20 being accidentally opened. When the upper surface 351 and the lower surface 352 can vertically transmit the stress between the hook body 10 and the valve 20, the two baffles 26 of the valve 20 are less likely to cause horizontal force deformation, the same reason, the upper block The surface 351 and the lower surface 352 also have an effect of being less susceptible to deformation.

2. The control handle 30 of the present invention is provided with a limiting block 35 on each of the two surrounding panels 32. When the two limiting blocks 35 are subjected to the stress of the valve 20 being accidentally opened, the upper blocking surface 351 and the lower blocking surface 352 are planar. The stress between the intermediate hook body 10 and the valve 20 is transmitted, so the force area of the valve 20 is far greater than that of the US7437806 case. Therefore, the present invention can effectively disperse the stress of the valve 20, and has a progressively less deformable progress. The total force area of the restriction block 35 is also increased compared to the US 20120042487 case, so that the valve 20 and the restriction block 35 have the advantages of a longer service life.

3. The present invention is provided with a restriction block 35 in each of the two panels 32, which can effectively reduce the internal stress of the corner portion of the end plate 31, improve the safety hazard of the US 20120042487 case, and greatly improve the overall safety of use.

In summary, the overall structural features of the present invention can be said to be unprecedented in the existing structure, and is a rather outstanding and excellent design, and no similar creation or disclosure is found in the similar products. Published, it is in line with the application requirements of the new patent, and is submitted in accordance with the law. However, the above is only a preferred embodiment of the present invention. When it is not possible to limit the scope of the creation of the creation, that is, the equal variation and modification of the patent application scope of the creation is within the scope of the creation. .

Claims (10)

A safety hook includes at least one hook body having a hook hole penetrating the front and rear sides, and a hook opening for connecting the hook hole on one side of the hook body, and a first space recessed on the other side, the first space The bottom end of the space is defined as a swaying surface; a valve is pivotally connected to the bottom of the hook with a first axis, and the first spring pushes the valve to close the hook, and the valve is further connected along the front and rear sides of the hook body. a baffle; and a control handle, which is provided with two baffles corresponding to the two baffles, and the two coaming plates are pivotally connected to the hook body by the second shaft, and the two coaming plates are respectively stamped and formed with a recess for An opposing restricting block protrudes from the inner surface of the two panels, the restricting block has upper and lower opposite upper and lower blocking surfaces, and further controls the upper and lower blocking surfaces to be perpendicular to the surrounding plate, and then the second spring Pushing the control handle, the upper stop surface is kept below the baffle plate, and the lower baffle surface is maintained above the swaying surface to ensure that the valve locks the hook, but when the operation control swings around the second axis, The restriction block can be disengaged from the position between the baffle and the clamp block to release the valve from being locked. The safety hook according to claim 1 is characterized in that an upper shearing opening is provided at the intersection of the top end of the pocket and the upper blocking surface, and a lower shearing opening is provided at the intersection of the bottom end of the recess and the lower blocking surface. The lower shearing port is a longitudinally communicating inner and outer cavity for eliminating the arc angle generated during the stamping and forming process of the upper and lower stop faces, thereby controlling the vertical retaining surface of the upper and lower stop faces. The safety hook according to claim 1 or 2, wherein the two surrounding plates are provided with a fifth hole above the limiting block for bridging a reinforcing bolt, and the bottom ends of the two baffles are maintained above the tilting surface, and further The reinforcing bolt is controlled to be located outside the bottom end of the baffle. The safety hook according to claim 1 or 2, wherein the outer edge of the swaying surface is provided with a symmetrical block protruding from the front and rear sides of the hook body, so that the groove width formed by the two slats can be wrapped. The block is therein, and further controlling the lower stop surface of the limiting block is maintained above the swaying surface and the clamping block to ensure that the valve locks the hook. The safety hook according to claim 1 or 2, wherein the hook body defines a hook mouth above the hook mouth, and the hook mouth is provided with a buckle block at a position adjacent to the hook hole, and the hook body further has a first through the hook mouth The valve has a main plate spanning the hook and two shielding plates symmetrically covering the two ends of the first hole; the main plate is provided with a button hole which can be combined with the buckle block, and the groove width formed by the two shielding plates is relatively The thickness formed by the front and rear sides of the hook body is large, and a third hole matching the first hole is formed, and then the first hole and the third hole are coupled by the first shaft, so that the valve can be the first axis For the center swing, the button hole is engaged with the buckle to open and close the hook. The safety hook according to claim 5, wherein the front and rear sides of the hook body are symmetrically protruded below the hook opening, and a first hole is penetrated in the shaft seat; the first spring is disposed around the shaft seat. The first spring is abutted on the hook body, and the other end provides the valve pre-pressure, so that the buckle hole has the potential of the combined buckle at any time, and is used to form the first positioning structure for maintaining the closing hook hole. The safety hook according to claim 5, wherein the two shutters are provided with a baffle along the front and rear sides of the hook body, and a flange is arranged at the joint between the shutter and the baffle to further control the groove formed by the two baffles. The wide neck is necked away from the two shutters, so that the two baffles can be placed on the front and rear sides of the hook body to perform limit sliding. The safety hook according to claim 5, wherein the top edge of the two panels is formed with a necking zone, so that the necking zone can be attached to the front and rear sides of the hook body for limiting sliding, and can enter and exit the two coverings. The groove width formed by the plate. The safety hook according to claim 1 or 2, wherein the hook body is provided with a second space on the other side of the first space, and the hook body is provided with a second hole at the intersection of the first space and the second space; An end plate spanning the first space, the second space opening, and two surrounding plates symmetrically covering the two ends of the second hole, and the two surrounding plates are provided with a fourth hole matching the second hole at a middle position for The second shaft pivots the second hole and the fourth hole. The safety hook according to claim 9, wherein the second shaft is disposed with a second spring between the two panels, the second spring is abutted against the hook body, and the other end is pushed to the end plate, and The limit control can only swing in the second space direction centered on the second axis to release the valve lock state.