Elevator capable of preventing backflow

Abstract

The utility model belongs to the technical field of material conveying, and particularly relates to an elevator capable of preventing backflow, which comprises an elevator frame, a driven wheel and a driving wheel which are respectively arranged at the two ends of the elevator frame, and a material conveying crawler belt which is laid and wrapped at the two ends of the elevator frame, and the two ends of the material conveying crawler belt are respectively wrapped on the driving wheel and the driven wheel. The driving wheel is connected with an external driving part, the conveying crawler belt moves on the surface of the elevator frame through the driving wheel and the driven wheel, a limiting part used for stopping the driving wheel from rotating is arranged at the end, close to the driving wheel, of the elevator frame, and the limiting part comprises a fixing block, a stop block and a turnover arm, and the stop block and the turnover arm are arranged on the two sides of the fixing block. The utility model aims to effectively prevent the rotation problem of the elevator caused by the gravity of materials after power failure through the arrangement of the limiting piece, and improve the working stability and safety of the elevator.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material conveying technical field, concretely relates to a prevent backflow's elevator. BACKGROUND

[0002] Bucket elevator is a kind of fixed device mechanical conveying equipment, mainly suitable for the continuous vertical lifting of powdery, granular and small block materials, and the bucket lifts the materials from the lower storage, and then the materials are lifted to the top along with the conveying belt or chain, and then the materials are turned down after passing the top wheel, and the bucket elevator pours the materials into the receiving groove.

[0003] In the prior art, a certain amount of materials are usually loaded in the receiving compartment of the elevator during the working process of the elevator, and the materials will be lifted to the top of the elevator along with the material conveying belt during the normal operation of the elevator, however, if power failure occurs suddenly during the operation of the elevator, the elevator will stop working immediately, and in this case, the materials loaded on the top of the elevator may start to move downward due to the action of gravity. This movement may generate a certain pulling force on the elevator, causing the elevator to rotate to a certain extent, and the materials originally in the elevator may be thrown out, resulting in material spilling, which not only pollutes the surrounding environment, but also affects the normal operation of the equipment, and even threatens the safety of the operator.

[0004] The above information disclosed in the background section is only used to enhance the understanding of the background of the technology described herein, therefore, some information in the background may not form the prior art known in the country for those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model provides a prevent backflow's elevator, which aims to effectively prevent the rotation problem of the elevator caused by the gravity of the materials after power failure by the setting of the limiting piece, and improve the working stability and safety of the elevator.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The utility model provides an anti -backflow elevator, including elevator frame, driven wheel and drive wheel who sets apart in the both ends of elevator frame and the material conveyor belt who is laid and is wrapped in the both ends of elevator frame, wherein the both ends of material conveyor belt are wrapped in drive wheel and driven wheel respectively, drive wheel is connected with external driving part, and the material conveyor belt is moved on the surface of elevator frame through drive wheel and driven wheel, the one end of elevator frame is equipped with the limiting piece for blocking the rotation of drive wheel near drive wheel, the limiting piece includes fixed block, and the baffle and the turnover arm who sets up in the both sides of fixed block, wherein the baffle is the blocky convex of fixed block surface, the turnover arm is in parallel below the baffle, the movable through -inserting rod between the turnover arm and fixed block, the one end of turnover arm is equipped with the clamping jaw away from the baffle, and the clamping jaw clamps in the both sides of drive wheel.

[0008] As a preferred technical scheme, the baffle is arranged in a right triangle structure, and the turnover arm is arranged in a right trapezoidal structure, wherein the hypotenuse of the turnover arm is parallel to the hypotenuse of the baffle.

[0009] Further, the drive wheel comprises a ring groove and a shaft through hole, wherein the ring groove is annularly arranged outside the shaft through hole, and the ring groove is in close contact with the clamping jaw.

[0010] Further, the external driving member comprises a shaft, and the shaft passes through the shaft through hole and enters the drive wheel.

[0011] Further, the elevator frame is arranged at an inclination angle with the drive wheel on top and the driven wheel on bottom.

[0012] Further, the elevator frame is provided with support frames at both ends of the driven wheel and the drive wheel, wherein the support frame arranged at the end of the driven wheel extends in the horizontal direction, the support frame arranged at the end of the drive wheel extends in the vertical direction, and the two support frames are butt-jointed with each other to form a right triangle between the two support frames and the elevator frame.

[0013] Further, the surface of the material conveyor belt is provided with a plurality of parallel distribution of the baffle, wherein the two adjacent baffles and the material conveyor belt form a material receiving compartment.

[0014] As described above, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0015] Through the arrangement of the limiting piece, the rotation problem caused by the gravity of the material after the power failure of the elevator is effectively prevented, and the working stability and safety of the elevator are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be explained through examples and by referring to the drawings, wherein:

[0017] Figure 1The utility model provides a kind of structure schematic diagram of elevator of preventing backflow provided by the utility model;

[0018] Figure 2 The utility model provides a side view of elevator provided by the utility model;

[0019] Figure 3 The utility model provides a kind of connection structure schematic diagram of limit piece and driving wheel provided by the utility model.

[0020] Elevator frame-1;Material conveying belt-2;Partition-3;Support frame-4;Driven wheel-5;Connecting rod-6;Driving wheel-7;Limit piece-8;Stop block-9;Turnover arm-10;Inserting rod-11;Annular groove-12;Clamping jaw-13;Shaft hole-14. Specific embodiments

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0022] Embodiment one

[0023] In prior art, in the operation process of elevator, its receiving area will be filled with material according to preset standard, these materials will be smoothly conveyed to the top of elevator along the conveying belt when elevator is stably running, however, if power interruption is encountered in operation process, elevator will immediately enter stop state, after power interruption, due to the action of gravity, the material accumulated at the top of elevator can begin to fall down, this falling can exert certain pulling force on elevator, cause it to produce a certain degree of rotation, cause the material originally located in the interior of elevator can be thrown out, thereby causing the scattering of material, this condition can not only cause pollution to environment, but also can constitute a threat to normal operation of equipment, even bring potential risk to safety of operator.

[0024] Therefore, in order to solve the problem that existing elevator can rotate due to gravity of material after power interruption, cause material to spill, realize the function of avoiding rotation of elevator and improving the working stability of elevator, the utility model discloses a kind of elevator of preventing backflow, refer to Figures 2-3, including the elevator frame 1, the driven wheel 5 and the drive wheel 7 arranged at both ends of the elevator frame 1 respectively, and the material conveying belt 2 wrapped at both ends of the elevator frame 1, wherein the two ends of the material conveying belt 2 are wrapped on the drive wheel 7 and the driven wheel 5 respectively, the drive wheel 7 is connected with an external driving member, and the material conveying belt 2 moves on the surface of the elevator frame 1 through the drive wheel 7 and the driven wheel 5, specifically, the end of the elevator frame 1 close to the drive wheel 7 is provided with a limiting piece 8 for blocking the rotation of the drive wheel 7, the limiting piece 8 comprises a fixed block, and a blocking block 9 and a turnover arm 10 arranged on both sides of the fixed block, wherein the blocking block 9 is a block-shaped protrusion on the surface of the fixed block, the turnover arm 10 is parallelly arranged below the blocking block 9, a penetrating rod 11 is movably arranged between the turnover arm 10 and the fixed block, and a clamping jaw 13 is arranged at the end of the turnover arm 10 away from the blocking block 9 and clamped on both sides of the drive wheel 7;

[0025] In the embodiment, referring to Figure 2 , the external driving member comprises a rotating shaft and a motor, one end of the rotating shaft penetrates through the drive wheel 7 and is fixed thereto, and the other end of the rotating shaft is connected with the motor, when the motor is started, the rotating shaft can drive the drive wheel 7 to rotate clockwise, at this time, the material conveying belt 2 can move on the surface of the elevator frame 1 under the driving of the drive wheel 7, and the driven wheel 5 is driven to rotate, so as to realize the transmission of the material;

[0026] Secondly, referring to Figure 3 , the turnover arm 10 can be turned over on the fixed block with the penetrating rod 11 as the center, when the motor is not powered off and the drive wheel 7 is driven to rotate clockwise by the rotating shaft, at this time, the clamping jaw 13 is clamped on both sides of the drive wheel 7, and under the action of the rotation of the drive wheel 7, the clamping jaw 13 can move upward, and then the end of the turnover arm 10 close to the blocking block 9 will be correspondingly turned over downward and will not contact the blocking block 9, so as to make the drive wheel 7 rotate smoothly, when the motor is turned off and the rotating shaft no longer drives the drive wheel 7 to rotate, due to the gravity of the material on the material conveying belt 2, the drive wheel 7 will begin to rotate counterclockwise, at this time, the clamping jaw 13 will descend due to the rotation of the drive wheel 7, so that the end of the turnover arm 10 close to the blocking block 9 will correspondingly rise and will be in abutment with the blocking block 9, so as to make the blocking block 9 limit the turnover arm 10, and the turnover arm 10 can limit the drive wheel 7 to stop rotating;

[0027] Preferably, referring to Figure 3The stopper 9 is arranged in a right triangle structure, and the turnover arm 10 is arranged in a right trapezoidal structure, wherein the hypotenuse of the turnover arm 10 is parallel to the hypotenuse of the stopper 8, and the length of the hypotenuse of the turnover arm 10 is slightly larger than the length of the hypotenuse of the stopper 9, so that when the turnover arm 10 abuts against the stopper 9, the clamping jaw 13 can be firmly clamped on both sides of the driving wheel 7, thereby more effectively preventing the rotation of the driving wheel 7.

[0028] Further, the clamping jaw 13 part of the turnover arm 10 is made of wear-resistant material, such as wear-resistant rubber or hard alloy.

[0029] In the embodiment, referring to Figure 3 The driving wheel 7 comprises an annular groove 12 and a shaft through hole 14, wherein the annular groove 12 is arranged outside the shaft through hole 14, and the annular groove 12 is in close contact with the clamping jaw 13, which enables the clamping jaw 13 to closely contact the annular groove 12 of the driving wheel 7, thereby enhancing the stability and reliability of clamping.

[0030] In addition, in order to further improve the stability and safety of the elevator, the tension adjustment of the conveying belt 2 is also considered, and a tension adjusting device such as a spring tensioner can be arranged at both ends of the conveying belt 2, especially the part connected with the driven wheel 5, so as to ensure that the conveying belt 2 maintains appropriate tension during the entire operation process, avoids material sliding or accumulation due to insufficient tension, and further affects the normal operation of the elevator.

[0031] In the embodiment, the elevator frame 1 can be made of stainless steel material to provide sufficient strength and corrosion resistance.

[0032] In addition, considering the noise that may be generated during the operation of the elevator, a damping device such as a rubber damping pad or a damping spring can be arranged between the elevator frame 1 and the driving wheel 7 and the driven wheel 5 to reduce vibration and noise and improve the comfort of the working environment.

[0033] In summary, the elevator for preventing backflow provided in the embodiment effectively prevents the rotation problem of the elevator caused by the gravity of the material after power failure through the arrangement of the limiting piece 8, and improves the working stability and safety of the elevator.

[0034] Embodiment two

[0035] On the basis of embodiment one, the utility model also includes the use mode of the elevator for preventing backflow, referring to Figure 1Specifically, the lifting machine frame 1 is arranged at an inclined angle with the driving wheel 7 on top and the driven wheel 5 on bottom, and the lifting machine frame 1 is provided with support frames 4 at both ends of the driving wheel 7 and the driven wheel 5, wherein the support frame 4 arranged at the end of the driven wheel 5 extends horizontally, the support frame 4 arranged at the end of the driving wheel 7 extends vertically, and the two support frames 4 are butted against each other to form a right-angled triangle between the two support frames 4 and the lifting machine frame 1.

[0036] In the embodiment, when the lifting machine frame 1 is arranged in the above manner, the angle of inclination can be adjusted according to the actual material conveying requirements to optimize the material conveying efficiency and the operation stability of the lifting machine. The arrangement of the driving wheel 7 on top and the driven wheel 5 on bottom enables the material to be more smoothly conveyed upward along the material conveying track 2 under the action of gravity.

[0037] The design of the support frame 4 not only provides stable support for the lifting machine, but also enhances the overall structural strength of the lifting machine through its special arrangement. The horizontally extending support frame 4 can ensure the stability at the end of the driven wheel 5, while the vertically extending support frame 4 can effectively support the end of the driving wheel 7 to avoid excessive shaking during operation. The right-angled triangle structure formed by the butt joint of the two support frames 4 not only enhances the overall stability of the lifting machine, but also improves the overall strength of the support frame 4.

[0038] When using the lifting machine that prevents backflow, first, the material conveying track 2 needs to be correctly wrapped around the driven wheel 5 and the driving wheel 7, and the tension of the material conveying track 2 needs to be adjusted. Then, the motor is started to drive the driving wheel 7 to rotate clockwise, at which time the material conveying track 2 starts to work and conveys the material from the low end to the high end. When it is necessary to stop the lifting machine, the motor is simply turned off, at which time the driving wheel 7 will stop rotating due to the action of the limiting piece 8, thereby preventing the material from falling due to gravity.

[0039] In addition, in order to further improve the use effect of the lifting machine, optionally, anti-skid textures are arranged on the surface of the material conveying track 2 to increase the friction between the material and the material conveying track 2, thereby preventing the material from slipping during the conveying process.

[0040] Optionally, guardrails or safety nets are arranged on both sides of the lifting machine frame 1 to prevent the material from splashing or falling during the conveying process, thereby posing a safety threat to the operator.

[0041] Further, the surface of the material conveying track 2 is provided with a plurality of parallel distribution of partitions 3, wherein two adjacent partitions 3 and the material conveying track 2 form a material receiving compartment. The arrangement of the material receiving compartment enables the material to be orderly distributed on the material conveying track 2 during the conveying process, thereby preventing the mutual extrusion and mixing of the materials, and further improving the efficiency and accuracy of the material conveying.

[0042] Meanwhile, in order to prevent materials from overflowing or falling from the receiving grid during the transmission process, baffles or fences can optionally be installed on both sides of the conveyor belt 2. These baffles or fences can effectively prevent materials from slipping off the conveyor belt 2, reduce material waste and environmental pollution, and protect the safety of operators.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-backflow elevator comprising an elevator frame (1), a driven wheel (5) and a driving wheel (7) arranged at both ends of the elevator frame (1), and a material conveying belt (2) laid around both ends of the elevator frame (1), wherein, Two ends of the material conveying crawler belt (2) are wrapped on the driving wheel (7) and the driven wheel (5) respectively, the driving wheel (7) is connected with an external driving member, and the material conveying crawler belt (2) is moved on the surface of the elevator frame (1) through the driving wheel (7) and the driven wheel (5), characterized in that the elevator frame (1) is provided with a limiting piece (8) for blocking the rotation of the driving wheel (7) at one end close to the driving wheel (7), the limiting piece (8) comprises a fixed block, and a stop block (9) and a turnover arm (10) arranged on both sides of the fixed block, wherein the stop block (9) is a block-shaped protrusion on the surface of the fixed block, the turnover arms (10) are distributed in parallel below the stop block (9), a penetrating rod (11) is movably arranged between the turnover arms (10) and the fixed block, and a clamping jaw (13) is arranged at one end of the turnover arm (10) away from the stop block (9) and clamped on both sides of the driving wheel (7).

2. The backflow preventing elevator of claim 1, wherein The stop block (9) is arranged in a right triangle structure, and the turnover arm (10) is arranged in a right trapezoidal structure, wherein the hypotenuse of the turnover arm (10) is parallel to the hypotenuse of the stop block (8).

3. The backflow preventing elevator of claim 1, wherein The driving wheel (7) comprises an annular groove (12) and a rotating shaft through hole (14), wherein the annular groove (12) is annularly arranged outside the rotating shaft through hole (14), and the annular groove (12) is in close contact with the clamping jaw (13).

4. A backflow preventing elevator according to any one of claims 1 or 3, characterized in that The external driving member comprises a rotating shaft, and the rotating shaft penetrates into the driving wheel (7) through the rotating shaft through hole (14).

5. The backflow preventing elevator of claim 1, wherein The elevator frame (1) is arranged at an inclined angle with the driving wheel (7) above and the driven wheel (5) below.

6. The backflow preventing elevator of claim 5, wherein, The elevator frame (1) is provided with support frames (4) at both ends of the driven wheel (5) and the driving wheel (7), wherein the support frame (4) arranged at the end of the driven wheel (5) extends in the horizontal direction, the support frame (4) arranged at the end of the driving wheel (7) extends in the vertical direction, and the two support frames (4) are butt-jointed with each other, so that a right triangle is formed between the two support frames (4) and the elevator frame (1).

7. The backflow preventing elevator of claim 1, wherein The surface of the material conveying crawler belt (2) is provided with a plurality of parallel distributed partition plates (3), wherein two adjacent partition plates (3) and the material conveying crawler belt (2) form a material receiving compartment.

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