CN209276063U - Electric hoist lifting protector - Google Patents

Abstract

The utility model discloses a kind of electric hoist lifting protector, including suspension hook and lifting device, the lifting device is set in lifting box, the lifting box lower surface is equipped with the shield that both ends are provided with opening close to its edge, the transition box of cuboid is provided at the top of the suspension hook by branch, it is located at the positional symmetry above transition box on the inside of the shield and is equipped with two first pulleys, the first pulley is connect by connecting rope with lifting device, it is located at the position above first pulley on the inside of the shield and second pulley is equipped with by connecting plate, the connecting rope around first pulley passes through second pulley and connect with lifting device, installation cavity is provided in the transition box, bullet block is symmetrically arranged in the middle part of the installation cavity, the two bullet blocks are connect by connecting rod with first pulley, it is connected between the two bullet blocks by brute spring.Safety hazard caused by the problems such as the utility model can play a protective role during electric hoist is gone up and down, and prevent lifting fracture of rope.

Description

Electric hoist lifting protector

Technical field

The utility model belongs to protective device field, and in particular to a kind of electric hoist lifting protector.

Background technique

Electric hoist be in driving or crane for lifting component, stability influence lifting effect.Make During, situations such as fracture such as hoisting rope, the lifting part of lifting can rapidly drop, in acceleration of gravity Under effect, impact force will cause very big harm.If there is construction personnel is just past will result in great safe thing Therefore.But existing electric hoist does not have protective device during lifting, is not able to satisfy actual demand.

Utility model content

Technical problem to be solved in the utility model is in view of the above shortcomings of the prior art, to provide a kind of electric hoist Peace caused by the problems such as lifting protector can play a protective role during electric hoist is gone up and down, prevent lifting fracture of rope Full harm.

The technical scheme adopted by the utility model is a kind of electric hoist lifting protector, including suspension hook and lifting dress It sets, the lifting device is set in lifting box, and the lifting box lower surface is equipped with both ends close to its edge and is provided with opening Shield, the suspension hook top are provided with a transition box for cuboid by branch, transition box top are located on the inside of the shield Positional symmetry be equipped with two first pulleys, the first pulley is connect by connecting rope with lifting device, the shield inside Position above first pulley is equipped with second pulley by connecting plate, and the connecting rope around first pulley passes through second Pulley is connect with lifting device, and installation cavity is provided in the transition box, is symmetrically arranged with bullet block, two bullets in the middle part of the installation cavity Block is connect by connecting rod with first pulley, is provided with the adjusting for being connected to installation cavity and passing through for connecting rod at the top of the transition box Slot is connected by brute spring between the two bullet blocks, the two bullet blocks far from being equipped with connecting column in the middle part of one end of brute spring, Transition box lateral wall corresponding with connecting column is provided with and is connected to inside installation cavity and for the connection through slot that connecting column passes through, The connecting column extends on the outside of transition box far from one end of bullet block, and the bullet block is equipped with the side of connecting column around connection axis of a cylinder Line is equipped with several inserted links, and the inner sidewall position corresponding with inserted link that the transition box is provided with connection through slot is equipped with matched with inserted link Slot, the connecting column is located at the first stay hook of the setting that is equipped with that Open Side Down of one end on the outside of transition box, in the shield Sidewall symmetry is equipped with the second stay hook with the matched opening up setting of the first stay hook, and the brute spring is in and returns completely One end end face of the connecting column far from bullet block is concordant with transition box lateral wall when contracting state, and the brute spring is in exhibition completely First stay hook described in when open state is inserted on the inside of the second stay hook.

In one embodiment, the spacing between two first pulleys and second pulley is consistent.

In one embodiment, angle is consistent between the two adjacent inserted links.

In one embodiment, the brute spring is in when being fully retracted state, the first stay hook and transition box it Between acute angle be 45 °.

In one embodiment, the acute angle between second stay hook and shield is 45 °.

The utility model has the beneficial effects that: brute spring is arranged in the present apparatus in transition box, in the normal work of electric hoist When making, brute spring is in compressive state, and when connecting rope disconnects, brute spring can apply active force to bullet block, make to connect Column is mobile to two sides, cooperates its two groups of stay hooks, realizes the function of anti-tenesmus.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model transition box cross-sectional view.

In figure: 1, suspension hook；2, lifting device；3, lifting box；4, shield；5, bracket；6, transition box；7, first pulley； 8, connecting rope；9, second pulley；10, installation cavity；11, bullet block；12, connecting rod；13, regulating tank；14, brute spring；15, it connects Column；16, through slot is connected；17, inserted link；18, slot；19, the first stay hook；20, the second stay hook；21, connecting plate.

Specific embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.

As depicted in figs. 1 and 2, a kind of electric hoist lifting protector, including suspension hook 1 and lifting device 2, the lifting dress It sets 2 to be set in lifting box 3,3 lower surface of lifting box is equipped with the shield 4 that both ends are provided with opening, institute close to its edge The transition box 6 for being equipped with cuboid at the top of suspension hook 1 by bracket 5 is stated, the position of 6 top of transition box is located on the inside of the shield 4 It sets and is symmetrically arranged with two first pulleys 7, the first pulley 7 is connect by connecting rope 8 with lifting device 2,4 inside of shield Position above first pulley 7 is equipped with second pulley 9 by connecting plate 21, and the connecting rope 8 around first pulley 7 is worn It crosses second pulley 9 to connect with lifting device 2, installation cavity 10 is provided in the transition box 6, is symmetrically arranged in the middle part of the installation cavity 10 Bullet block 11, the two bullet blocks 11 are connect with first pulley 7 by connecting rod 12, are provided at the top of the transition box 6 and installation cavity 10 Connection and for the regulating tank 13 that connecting rod 12 passes through, is connected between the two bullet blocks 11 by brute spring 14, the two bullet blocks It is equipped with connecting column 15 in the middle part of 11 one end far from brute spring 14, the transition box 6 lateral wall corresponding with connecting column 15 is provided with It is connected to inside installation cavity 10 and for the connection through slot 16 that connecting column 15 passes through, the one end of the connecting column 15 far from bullet block 11 6 outside of transition box is extended to, the side that the bullet block 11 is equipped with connecting column 15 is equipped with several inserted links 17 around 15 axis of connecting column, The transition box 6 be provided with connection through slot 16 inner sidewall position corresponding with inserted link 17 equipped with the matched slot 18 of inserted link 17, First stay hook 19 of setting that one end that the connecting column 15 is located at the outside of transition box 6 is equipped with that Open Side Down, in the shield 4 Sidewall symmetry is equipped with the second stay hook 20 with the matched opening up setting of the first stay hook 19, and the brute spring 14 is in It is concordant with 6 lateral wall of transition box to be fully retracted one end end face of the connecting column 15 far from bullet block 11 when state, the strength bullet First stay hook 19 described in when spring 14 is in fully unfolded position is inserted into 20 inside of the second stay hook.

In the present embodiment, two first pulleys 7 are consistent with the spacing between second pulley 9.

In the present embodiment, angle is consistent between the two adjacent inserted links 17.

In the present embodiment, the brute spring 14 is in when being fully retracted state, between the first stay hook 19 and transition box 6 Acute angle be 45 °.

In the present embodiment, the acute angle between second stay hook 20 and shield 4 is 45 °.

The lifting device 2 referred in this protective device is 8 reel and the motor of driving reel rotation of restricting that be intertwined and connected, This is the prior art, and the application no longer individually repeats.For connecting with devices such as driving, tower cranes, connection type is lifting box 3 The prior art, the application no longer individually repeat.First pulley 7 and second pulley 9 are passed through into connecting rope 8 and upper when the present apparatus is installed The lifting device 2 of side connects, and whole device is made to reach working condition.Connecting rope 8 can slide the second of two sides in this process Wheel 9 applies the active force to 7 direction of first pulley, and second pulley 9 is allow to apply active force by 12 pairs of bullet blocks 11 of connecting rod, Brute spring 14 is compressed.In this condition, one end end face of the connecting column 15 far from bullet block 11 and 6 lateral wall of transition box are flat Together.When connecting rope 8 is broken, second pulley 9 applies active force by 12 pairs of bullet blocks 11 of connecting rod and disappears, and brute spring 14 flicks, Band block 11 of moving is mobile to both ends.Bullet block 11 is moved to 13 end of regulating tank, and inserted link 17 is inserted into slot 18 and realizes locking.First is solid It is mobile to 4 inner sidewall direction of shield under the action of connecting column 15 to determine hook 19, lock is realized in 20 inside of the second stay hook of insertion It is fixed, it prevents suspension hook 1 from falling and causes the accident.The article that the present apparatus lifts as needed determines the size of shield 4, to meet lifting Article is lifted in the process to be located on the inside of shield 4 for standard.

Specific embodiment of the present utility model above described embodiment only expresses, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.

Claims (5)

1. a kind of electric hoist lifting protector, including suspension hook and lifting device, it is characterised in that: the lifting device is set to In lifting box, the lifting box lower surface is equipped with the shield that both ends are provided with opening close to its edge, leads at the top of the suspension hook The transition box that branch is provided with cuboid is crossed, the positional symmetry being located above transition box on the inside of the shield is sliding equipped with two first Wheel, the first pulley are connect by connecting rope with lifting device, and the position above first pulley is located on the inside of the shield It is equipped with second pulley by connecting plate, is connect across second pulley with lifting device around the connecting rope of first pulley, institute It states and is provided with installation cavity in transition box, bullet block is symmetrically arranged in the middle part of the installation cavity, the two bullet blocks are sliding with first by connecting rod Wheel connection is provided at the top of the transition box and be connected to installation cavity and for the regulating tank that connecting rod passes through, logical between the two bullet blocks Brute spring connection is crossed, the two bullet blocks are equipped with connecting column, the transition box and connecting column far from one end middle part of brute spring Corresponding lateral wall is provided with and is connected to and inside installation cavity for the connection through slot that connecting column passes through, and the connecting column is far from bullet block One end extend on the outside of transition box, the side that the bullet block is equipped with connecting column is equipped with several inserted links, institute around connection mast axis State transition box be provided with connection through slot inner sidewall position corresponding with inserted link equipped with and the matched slot of inserted link, the connecting column position One end on the outside of transition box is equipped with the first stay hook that Open Side Down is arranged, and the shield inner sidewall is symmetrically arranged with and first Second stay hook of the matched opening up setting of stay hook, the brute spring are in and are fully retracted connecting column when state One end end face far from bullet block is concordant with transition box lateral wall, when the brute spring is in fully unfolded position described in first consolidate Determine hook to be inserted on the inside of the second stay hook.

2. electric hoist lifting protector according to claim 1, it is characterised in that: two first pulleys are sliding with second Spacing between wheel is consistent.

3. electric hoist lifting protector according to claim 1, it is characterised in that: angle between the two adjacent inserted links Unanimously.

4. electric hoist lifting protector according to claim 1, it is characterised in that: the brute spring is in and returns completely When contracting state, the acute angle between the first stay hook and transition box is 45 °.

5. electric hoist lifting protector according to claim 1, it is characterised in that: second stay hook and shield Between acute angle be 45 °.