CN209306776U - Anti-dropping safety device for lifting means - Google Patents

Abstract

The utility model relates to a kind of anti-dropping safety devices for lifting means, including braced frame, lifting assembly, connection component and locking assembly；It plays suspending bars one end and passes through at the top of the braced frame and keep away a hole；Braced frame side offers guide groove, and linkage portion is fixed in one end of connecting rod, and the other end is pierced by guide groove and affixed with vertical push rod one end, to drive vertical push rod to move along vertical side；Mounting base is fixed in braced frame side, and has a guide chute, and vertical push rod penetrates guide chute far from one end of connecting rod, and affixed with lateral push rod；Two latch segments are fixed in the both ends of lateral push rod, and two latch segments are configured as sliding in corresponding moving track away from each other or closely；During lateral push rod moves downward, promoting two latch segments, separate direction is mobile towards each other, at this point, two latch segments it is away from one another from side friction catch face and braking member cooperation brake, in this way, response in time, safe fall-proof and high reliablity.

Description

Anti-dropping safety device for lifting means

Technical field

The utility model relates to lifting means technical fields, fill more particularly to a kind of safe fall-proof for lifting means It sets.

Background technique

With the quickening of China's modernization, elevator is in construction, industrial and mining enterprises, multilayer workshop and storage field Etc. more and more being used.And for elevator, anti-fall device is a kind of indispensable safety device, By the operating of control carriage or plate, the contingency to avoid carriage or plate from falling occurs.Currently, traditional liter The falling proof device of drop machine, generally only carriage or plate drop to leveling or specific position just and can be carried out anti-fall movement, respond Not in time, there are security risks.

Utility model content

Based on this, it is necessary to be responded not in time for the falling proof device of traditional elevator, there are asking for security risk Topic provides a kind of raising safety and reliability, response the fast anti-dropping safety device for lifting means.

Anti-dropping safety device for lifting means, comprising:

Braced frame；

Lifting assembly, including playing suspending bars, being sheathed on the guide rod seat and the first elastic component for playing suspending bars, and support Below the guide rod seat and suspending bars are fixedly connected with described linkage portion, be additionally provided in the braced frame be located at it is described Supporting part at the top of braced frame, the supporting part, which has, keeps away a hole through it, and described suspending bars one end is from the support Frame roof pass through it is described keep away a hole, first elastic component be set to it is described keep away a hole, and be located at the guide rod seat with it is described Between braced frame；

Connection component, including connecting rod and vertical push rod, the braced frame side offer guide groove, and the one of the connecting rod The linkage portion is fixed at end, and the other end is pierced by the guide groove and affixed with described vertical push rod one end, described perpendicular to drive It is moved along the vertical direction to push rod；

Locking assembly, including mounting base, lateral push rod, two latch segments and two the second elastic components, the mounting base are solid It is connected to the braced frame side, and there is a guide chute, the vertical push rod penetrates described far from one end of the connecting rod Guide chute, and contacted with the lateral push rod；Two latch segments are fixed in the both ends of the lateral push rod, the installation Seat is set there are two moving track, and two latch segments are configured as away from each other or closely in the corresponding moving track Interior sliding, two second elastic components are respectively arranged in the corresponding moving track, and one end is connected to the movement The end of track, the other end are connected to the latch segment；

Wherein, two latch segments side relative to each other has the guide surface being obliquely installed, two latch segments It is away from one another from side have for braking member cooperation braking friction catch face, it is described transverse direction push rod both ends cooperation In the guide surface of the corresponding latch segment, to push two locks in the lateral push rod vertically motion process Tight block is moved away from towards each other.

Above-mentioned anti-dropping safety device, when the wirerope connecting with suspending bars is broken, in the work of the first elastic component Guide rod seat is promoted to move downward under, so that linkage portion, connecting rod, vertical push rod and lateral push rod linkage be made to move downward.Due to There is the guide surface being obliquely installed to promote two during lateral push rod moves downward for two latch segments side relative to each other Separate direction is mobile towards each other for a latch segment.At this point, two latch segments it is away from one another from side friction catch face and system Dynamic element cooperation, locks by frictional force and brakes, to play anti-fall effect.In this way, response in time, safe fall-proof and can By property height.

In one embodiment, the guide surface is a lozenges.

In one embodiment, the friction catch face, which is equipped with, increases rubbing device.

In one embodiment, the connecting rod is removably attachable to the linkage far from one end of the vertical push rod Portion.

In one embodiment, the lifting assembly further includes lifting sleeve, and described lifting sleeve one end is from the branch Support frame top of the trellis keeps away a hole described in passing through, and affixed with the linkage portion, and described suspending bars are arranged in the lifting sleeve, and It is affixed with the linkage portion.

In one embodiment, the braced frame roof is close in first elastic component one end, and the other end passes through institute It states and keeps away a hole abutting guide rod seat, make the guide rod seat that there is the pretightning force for vertically moving down trend for providing.

In one embodiment, the mounting base includes the backing plate being fixed on the outside of the braced frame and is fixed on institute The mounting plate of backing plate is stated, the mounting plate and the backing plate cooperatively form the guide chute；

The moving track includes the limit sliding chutes for being set to the mounting plate and matching with the latch segment, and is set to The guide chute of the backing plate, the latch segment is set to the limit sliding chutes, and the latch segment is equipped with and the guide chute The guide part of matching, second elastic component one end are connected to the end of the limit sliding chutes, and the other end is connected to the locking Block.

In one embodiment, the anti-dropping safety device further includes two directive wheels, and two directive wheels can turn It is set to the mounting base dynamicly, for contacting guiding with the braking member.

In one embodiment, the anti-dropping safety device further includes disconnected rope trigger member and is electrically connected with motor power Trigger switch, the disconnected rope trigger member is installed in the vertical push rod, and the trigger switch is located at the disconnected rope trigger member In movement routine, with during the vertical push rod moves down, contact triggers the trigger switch.

In one embodiment, the anti-dropping safety device further includes cushion cap mounting plate, and the cushion cap mounting plate is fixed In the braced frame other side opposite far from the locking assembly.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the anti-dropping safety device for lifting means in one embodiment of the utility model；

Fig. 2 is the knot at another visual angle of the anti-dropping safety device for lifting means in one embodiment of the utility model Structure schematic diagram；

Fig. 3 is the partial structurtes signal of the anti-dropping safety device for lifting means in one embodiment of the utility model Figure.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model The understanding of disclosure is more thorough and comprehensive.

It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more related listed items.

As shown in Figures 1 and 2, the anti-dropping safety device 10 for lifting means in one embodiment of the application, including Braced frame 12, lifting assembly, connection component and locking assembly.

Main body frame of the braced frame 12 as anti-dropping safety device 10, for each element to be supported and is fixed, and It is connect with carriage or loading platform.Specifically, which includes top plate 122, bottom plate 124 and connection top plate 122 and bottom plate 124 two side plates 126 form an installation space between two side plates 126.It should be understood that the top plate 122, bottom plate 124 And side plate 126 can selective integrated molding according to the actual situation, for example, in one embodiment, the bottom plate 124 and two Side plate 126 is integrally formed, and is made up of bending technique, which is welded in two tops of the side plate 126 far from bottom.

It is appreciated that the structure of the braced frame 12 includes but is not limited to this, herein not in some other embodiment It limits.

Lifting assembly has included that (figure is not for suspending bars 142, the guide rod seat 144 for being sheathed on suspending bars 142 and the first elastic component Show), and the linkage portion 148 for being supported in 144 lower section of guide rod seat and being fixedly connected with suspending bars 142.In braced frame 12 also Equipped with the supporting part 128 for being located at 12 top of braced frame, supporting part 128, which has, keeps away a hole through it, plays 142 one end of suspending bars It is arranged at the top of braced frame 12 and keeps away a hole, the first elastic component, which is set to, keeps away a hole, and is located at guide rod seat 144 and braced frame Between 12.

Specifically, which is linkage angle iron, plays suspending bars 142 for connecting with wirerope, works as lifting means In uphill process, plays suspending bars 142 and linkage portion 148 is pulled to move upwards, linkage portion 148 acts on guide rod seat 144, the guide rod Seat 144 abuts supporting part 128, so as to drive braced frame 12 to rise, and then carriage or loading platform is driven to rise.First elasticity Part one end is connected to 12 roof of braced frame, and the other end, which passes through, keeps away a hole abutting guide rod seat 144, makes guide rod seat 144 for providing With the pretightning force for vertically moving down trend.

Specific in embodiment, the guide rod seat 144 is cylindrical, and radial dimension is greater than the radial dimension for keeping away a hole, The supporting part 128 is limited in make guide rod seat 144 that can abut.The top plate 122 offers via hole, plays suspending bars 142 from the mistake Hole penetrates, and is pierced by by keeping away a hole and is fixedly connected with linkage portion 148.First elastic component is compressed spring, at least partly It is contained in and keeps away in a hole, the top plate 122 of braced frame 12 is close in one end, and the other end is close to guide rod seat 144；When the safe fall-proof fills When setting 10 in propradation, the abutting of guide rod seat 144 is limited in supporting part 128, and the first elastic component is in compressive state.

It is appreciated that the supporting part 128 also can be a shell-like structure in some other embodiment, have one to hold It carries and sets, the first elastic component is located in bogey, and guide rod seat 144 can abut the lower end for being limited in the supporting part 128.

In one embodiment, this plays suspending bars 142 and is removably attachable to linkage portion 148.Specifically, this plays suspending bars 142 protrude into one end in braced frame 12 equipped with external screw thread, which offers mounting hole, this plays 142 screw thread of suspending bars It is connected to the mounting hole.In this way, it is easy to disassemble, it is easy-to-use.Further, which further includes locking nut, the lock Tight nut thread is connected to this and plays one end that suspending bars 142 stretch out mounting hole above-mentioned.In this way, can further guarantee that lifting is drawn The reliability that bar 142 is connect with linkage portion 148.

In one embodiment, which further includes lifting sleeve 150, lifts by crane 150 one end self-supporting frame 12 of sleeve Top passes through and keeps away a hole, and affixed with linkage portion 148, plays a suspending bars 142 and is arranged in lifting sleeve 150, and with linkage portion 148 Affixed, specifically, which is bolted to the side of lifting well-bucket 150.In this way, being risen to suspending bars 142 are played To guiding and protective effect.

Connection component includes connecting rod 162 and vertical push rod 164, and 12 side of braced frame offers guide groove 129, connecting rod Linkage portion 148 is fixed in 162 one end, and the other end is pierced by guide groove 129 and affixed with vertical 164 one end of push rod, perpendicular to drive It is moved along the vertical direction to push rod 164.Specifically, which is set to a side plate 126 of braced frame 12, the guiding Slot 129 is vertically extending, and 162 one end of connecting rod is arranged in linkage portion 148, and passes through nut check.Vertical push rod 164 is substantially vertical Ground is fixed in the other end of connecting rod 162.

Specific in embodiment, the connecting rod 162 is in the shape of a rod, and cross sectional shape is circle, which is waist type Slot.

Locking assembly includes mounting base 182, lateral push rod 184 (see Fig. 3), two latch segments 186 and two second elasticity Part 188.Mounting base 182 is fixed in 12 side of braced frame, and has a guide chute, and vertical push rod 164 is far from connecting rod 162 One end penetrates guide chute, and affixed with lateral push rod 184.Two latch segments 186 are fixed in the both ends of lateral push rod 184, peace Dress seat 182 is set there are two moving track, and two latch segments 186 are configured as away from each other or being closely slidedly arranged on corresponding movement Track, two the second elastic components 188 are respectively arranged in corresponding moving track, and one end is connected to the end of moving track, The other end is connected to latch segment 186.

Two latch segments 186 side relative to each other has the guide surface that is obliquely installed, two latch segments 186 phase each other The side deviated from has for the friction catch face 1862 with braking member cooperation braking, and the both ends of lateral push rod 184 are matched with The guide surface of corresponding latch segment 186, to push two latch segments 186 in lateral push rod 184 vertically dropping process It is moved away from towards each other.Specifically, which is I-steel or channel steel, the friction catch face of two latch segments 186 The 1862 two inside face contact friction catches opposite with I-steel or channel steel.

When with play the wirerope that connect of suspending bars 142 and be broken, promote guide rod seat 144 under the action of the first elastic component It moves downward, so that linkage portion 148, connecting rod 162, vertical push rod 164 and the lateral linkage of push rod 184 be made to move downward.Due to two A latch segment 186 side relative to each other has the guide surface being obliquely installed, and during lateral push rod 184 moves downward, promotees Making two latch segments 186, separate direction is mobile towards each other.At this point, two latch segments 186 it is away from one another from side friction Braking surface 1862 and braking member cooperate, and lock and brake by frictional force, to play anti-fall effect.

In this way, responding timely, safe fall-proof and high reliablity.

In one embodiment, mounting base 182 includes being fixedly connected with the backing plate 1822 in 12 outside of braced frame and being fixed on pad The mounting plate 1824 of plate 1822, mounting plate 1824 and backing plate 1822 cooperatively form guide chute above-mentioned.Moving track includes peace The guide chute of loading board 1824 and the limit sliding chutes 189 to match with latch segment 186 and backing plate 1822, latch segment 186 are limiting Sliding in the sliding slot 189 of position, and latch segment 186 is equipped with the guide part 1864 to match with guide chute.Second elastic component, 188 one end connects It is connected to the end of limit sliding chutes 189, the other end connects latch segment 186.

Specifically, which is tension spring, in the separate direction moving process towards each other of latch segment 186 In, the elastic force for making latch segment 186 have direction mobile trend close towards each other is provided.There are two being set on each latch segment 186 Guide part 1864, the guide part 1864 are guide post, and backing plate 1822 is equipped with two guide chutes to match with guide part 1864. In this way, making that sliding block can steadily separate or close direction, i.e., front-rear direction as shown in Figure 1 be mobile towards each other.

Further, which further includes locking cover board 15, which is removably installed in 1824 side of mounting plate further ensure that anti-dropping safety device 10 to prevent latch segment 186 from falling off from limit sliding chutes 189 Safety and reliability.

In one embodiment, which is a lozenges, and the both ends of the transverse direction push rod 184 are respectively provided with and lozenges phase Matched mating surface, the mating surface correspond to a lozenges.During lateral push rod 184 moves down, mating surface and guiding Face bonding and promote latch segment 186 to be displaced outwardly, to make the friction catch face 1862 opposite with guide surface of latch segment 186 Friction catch is contacted with braking member.

In one embodiment, which is rough surface.Further, friction catch face 1862 is equipped with and rubs Wipe device.In this way, the coefficient of friction of contact of the friction catch face 1862 with braking member is increased, to improve braking effect Fruit, and then improve anti-fall safety and reliability.

In one embodiment, which further includes two directive wheels 19, and two directive wheels 19 are rotationally It is set to mounting base 182, for contacting guiding with braking member.Specifically, two directive wheels 19 keep height consistent, and two The shaft of a directive wheel 19 is arranged in backing plate 1822, and directive wheel 19 is rotatablely arranged at one that shaft stretches out mounting plate 1824 End.It should be understood that the directive wheel 19 is used for during 10 rise and fall of anti-dropping safety device, with braking member (work Word steel or channel steel) two inner surfaces opposite with the friction catch face 1862 of latch segment 186 contact guiding, therefore, this is led Mounting plate 1824 should be at least partly protruded out to wheel 19.

In one embodiment, which further includes disconnected rope trigger member 11 and the touching that is electrically connected with motor power Switch 13 is sent out, disconnected rope trigger member 11 is housed, and trigger switch 13 is located at the movement routine of disconnected rope trigger member 11 on vertical push rod 164 On, to trigger the trigger switch 13 during vertical push rod 164 moves down.Specifically, which is contact Switch, which is elastic slice, and when disconnected rope occurs, vertical push rod 164 is moved down with dynamic circuit breaker rope trigger member 11, To trigger the trigger switch 13.The trigger switch 13 and control power electric connection, in this way, motor power can be closed in time, into Improve safety and reliability to one step.

It is understood that the trigger switch 13 can reset to original state, and not after the wirerope of fracture connects State before triggering.

In one embodiment, which further includes cushion cap mounting plate 17, which is fixed on The other side opposite far from locking assembly of braced frame 12.

The above-mentioned anti-dropping safety device 10 for lifting means compared with prior art, has the advantage that

1) friction catch face 1862 and braking member cooperate, and lock and brake by frictional force, such mechanical anti-falling lock Tightly, structure is simple, and safety index is high, and easily construction, at low cost.

2) whether it is broken using the variation response wirerope of the elastic potential energy of the first elastic component, response is timely, safe fall-proof Property and high reliablity.

3) mechanical anti-falling locking and the electric-controlled switch of contact are used cooperatively, and further increase response speed, And improve anti-fall safety and reliability.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. being used for the anti-dropping safety device of lifting means characterized by comprising

Braced frame；

Lifting assembly including a suspending bars, is sheathed on the guide rod seat and the first elastic component for playing suspending bars, and is supported in institute The linkage portion being fixedly connected below guide rod seat and with described suspending bars is stated, is additionally provided in the braced frame positioned at the support The supporting part of frame roof, the supporting part, which has, keeps away a hole through it, and described suspending bars one end is from the braced frame Top be arranged in it is described keep away a hole, first elastic component be set to it is described keep away a hole, and be located at the guide rod seat and the branch Between support frame frame；

Connection component, including connecting rod and vertical push rod, the braced frame side offer guide groove, and one end of the connecting rod is solid Due to the linkage portion, the other end is pierced by the guide groove and affixed with described vertical push rod one end, described is vertically pushed away with driving Bar moves along the vertical direction；

Locking assembly, including mounting base, lateral push rod, two latch segments and two the second elastic components, the mounting base are fixed in The braced frame side, and there is a guide chute, the vertical push rod penetrates the guiding far from one end of the connecting rod Sliding slot, and contacted with the lateral push rod；Two latch segments are fixed in the both ends of the lateral push rod, and the mounting base is set There are two moving track, two latch segments are configured as away from each other or sliding closely in the corresponding moving track Dynamic, two second elastic components are respectively arranged in the corresponding moving track, and one end is connected to the moving track End, the other end is connected to the latch segment；

Wherein, two latch segments side relative to each other has the guide surface being obliquely installed, and two latch segments are each other The side being away from each other has for the friction catch face with braking member cooperation braking, and the both ends of the transverse direction push rod are matched with pair The guide surface for the latch segment answered, to push two latch segments in the lateral push rod vertically motion process It is moved away from towards each other.

2. the anti-dropping safety device according to claim 1 for lifting means, which is characterized in that the guide surface is one Lozenges.

3. the anti-dropping safety device according to claim 1 for lifting means, which is characterized in that the friction catch face Equipped with increase rubbing device.

4. the anti-dropping safety device according to claim 1 for lifting means, which is characterized in that the connecting rod is far from institute The one end for stating vertical push rod is removably attachable to the linkage portion.

5. the anti-dropping safety device according to claim 4 for lifting means, which is characterized in that the lifting assembly is also Including lifting by crane sleeve, described lifting sleeve one end be arranged in from the top of the braced frame described in keep away a hole, and with the linkage Portion is affixed, and described suspending bars are arranged in the lifting sleeve, and affixed with the linkage portion.

6. the anti-dropping safety device according to claim 1 for lifting means, which is characterized in that first elastic component One end is connected to the braced frame roof, and the other end keeps away a hole described in and is connected to the guide rod seat, makes institute for providing Stating guide rod seat has the pretightning force for vertically moving down trend.

7. the anti-dropping safety device according to claim 1 for lifting means, which is characterized in that the mounting base includes The backing plate that is fixed on the outside of the braced frame and the mounting plate for being fixed on the backing plate, the mounting plate and the backing plate cooperate Form the guide chute；

The moving track includes the limit sliding chutes for being set to the mounting plate and matching with the latch segment, and is set to described The guide chute of backing plate, the latch segment is set to the limit sliding chutes, and the latch segment is equipped with and matches with the guide chute Guide part, second elastic component one end is connected to the end of the limit sliding chutes, and the other end is connected to the latch segment.

8. the anti-dropping safety device according to claim 1 for lifting means, which is characterized in that the safe fall-proof dress Setting further includes two directive wheels, and two directive wheels are rotatablely arranged at the mounting base, is used for and the braking member Contact guiding.

9. described in any item anti-dropping safety devices for lifting means according to claim 1~8, which is characterized in that described Anti-dropping safety device further includes disconnected rope trigger member and the trigger switch that is electrically connected with motor power, and the disconnected rope trigger member is installed in The vertical push rod, and the trigger switch is located in the movement routine of the disconnected rope trigger member, with the vertical push rod to During lower movement, contact triggers the trigger switch.

10. described in any item anti-dropping safety devices for lifting means according to claim 1~8, which is characterized in that described Anti-dropping safety device further includes cushion cap mounting plate, and the cushion cap mounting plate is fixed on the braced frame far from the locking assembly The opposite other side.