Elevator with head pressure relief device

Abstract

According to the technical scheme, the pressure relief device and a sealing piece are additionally arranged on a charging barrel at the head of the elevator, the pressure relief device comprises an elastic piece, a rotating piece and a cover plate, the elastic piece can adjust and automatically close the rotating piece and the cover plate, and the cover plate covers a pressure relief opening of the charging barrel. The cover plate moves and adjusts the swing angle through the rotating piece, when the pressure of stacked materials in a material barrel at the head of the elevator is too large, the materials jack the cover plate open, the cover plate is lifted upwards through the rotating piece, the excessively stacked materials are discharged from the pressure relief opening, the pressure of the head of the elevator is reduced, and when the pressure of the head of the elevator recovers to the normal standard, the cover plate is lifted upwards through the rotating piece. The cover plate is automatically buckled back to the pressure relief opening through the rotating piece, the pressure relief opening is closed, automatic pressure relief is achieved, manual intervention is not needed, the structure is simple, operation is convenient, the pressure of the head of the elevator can be effectively reduced, the safety and stability of equipment are improved, and meanwhile due to automatic control of the pressure relief device, the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of elevators, and particularly to an elevator with a head pressure relief device. Background Art

[0002] With the development of modern industry, elevators, as important vertical transportation equipment, are widely used in various scenarios. Among them, the head structure of the elevator is one of its key parts. In the prior art, during the actual use of the elevator, due to reasons such as load changes and improper operation, the head pressure is often too high, posing a safety hazard and affecting the stable operation of the elevator. Content of the Utility Model

[0003] The main purpose of the utility model is to propose an elevator with a head pressure relief device, aiming to solve the technical problem of potential safety hazards when the head pressure of the elevator is too high or exceeds a predetermined value.

[0004] To achieve the above object, the utility model proposes an elevator with a head pressure relief device. Specifically, it includes:

[0005] A lifting motor, the output shaft of the lifting motor is provided with a first sprocket;

[0006] A speed reducer, the output shaft of the speed reducer is provided with a second sprocket;

[0007] A chain, the first sprocket and the second sprocket are connected by the chain in a transmission manner;

[0008] A barrel, located at the head of the elevator, a pressure relief port is opened at the upper end of the barrel;

[0009] A pressure relief device, which is used to automatically open the pressure relief port when the accumulated material pressure in the head barrel of the elevator exceeds a predetermined value, so that the accumulated material in the elevator barrel flows out from the pressure relief port to release the pressure; and

[0010] A seal, which is used to prevent material leakage and dust flying during the operation of the elevator.

[0011] Further, the pressure relief device includes an elastic member, a rotating member and a cover plate, and the elastic member can adjust the rotating member to drive the cover plate to automatically open or close.

[0012] Further, the cover plate covers the pressure relief port of the barrel and can swing between a position covering the pressure relief port and a position away from the pressure relief port.

[0013] Further, the rotating member is a hinge, one end of the hinge is connected to the cover plate, the other end of the hinge is connected to the barrel, and the hinge serves as a fulcrum for opening and closing to change the swing angle of the cover plate.

[0014] Further, the elastic member is a button spring, the button spring is arranged on the rotating shaft of the hinge, and the number of the button springs is at least one.

[0015] Further, the seal is a baffle plate, which is arranged inside the cover plate. When the cover plate covers the pressure relief port, the baffle plate seals the pressure relief port.

[0016] Further, the number of baffle plates is at least one, and the baffle plates are arranged inside the cover plate.

[0017] Further, a locking member is also arranged at the other end of the cover plate and the barrel relative to the rotating member, and the locking member tightly fastens the cover plate and the barrel.

[0018] Further, the locking member is a snap member, and the snap member includes a first snap and a second snap.

[0019] Further, a maintenance platform is arranged on one side of the barrel where the elevator is located, and the maintenance platform is supported by the frame opened by the elevator.

[0020] The technical solution of the present utility model adds a pressure relief device and a seal on the barrel at the head of the elevator. The pressure relief device includes an elastic member, a rotating member and a cover plate. The elastic member can adjust and automatically close the rotating member and the cover plate. The cover plate covers the pressure relief port of the barrel. The cover plate moves through the rotating member and adjusts the swing angle. When the pressure of the material accumulated in the barrel at the head of the elevator is too high, the material pushes open the cover plate, and the cover plate is lifted upward through the rotating member. The excessive accumulated material is discharged from the pressure relief port, reducing the pressure at the head of the elevator. When the pressure at the head of the elevator returns to the normal standard, the cover plate automatically snaps back to the pressure relief port by the rotating member, and the pressure relief port is closed, realizing automatic pressure relief without manual intervention. The structure of the present utility model is simple and easy to operate, which can effectively reduce the pressure at the head of the elevator, improve the safety and stability of the equipment. At the same time, due to the automatic control of the pressure relief device, the difficulty and error of manual operation are reduced, and the work efficiency is improved. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the present utility model;

[0022] Figure 2 is a partial enlargement of the barrel part of the present utility model Figure 1 ;

[0023] Figure 3 is a partial enlargement of the barrel part of the present utility model Figure 2 ;

[0024] Figure 4 is a partial enlargement of the cover plate part of the present utility model Figure 1 ;

[0025] Figure 5 is a partial enlargement of the cover plate part of the present utility model Figure 2 .

[0026] Among them, the above-mentioned drawings include the following reference numerals:

[0027] 1. Hoist; 11. Hoist motor; 111. First sprocket; 12. Chain; 13. Tail section; 14. Bending section; 15. Maintenance section; 16. Intermediate section; 17. Base; 18. Chassis assembly; 2. Barrel; 21. Pressure relief port; 22. Discharge port; 3. Pressure relief device; 31. Cover plate; 32. Rotating part; 33. Elastic part; 4. Seal; 5. Locking part; 51. First buckle; 52. Second buckle; 6. Reducer; 61. Second sprocket; 7. Maintenance platform; 8. Frame. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there is a description involving "first" or "second" in the embodiments of the present invention, then the description of "first" or "second" is only for descriptive purposes and cannot be understood as indicating or implying its relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] The present invention provides a hoist 1 with a head pressure relief device 3. In the embodiments of the present invention, as Figures 1 to 5As shown, the utility model includes the following contents: a lifting motor 11, the output shaft of the lifting motor 11 is provided with a first sprocket 111, the lifting motor 11 provides power for the elevator 1 to realize the operation of the elevator 1; a reduction box 6, the output shaft of the reduction box 6 is provided with a second sprocket 61, the effect of the reduction box 6 is to reduce the load at startup and protect the chain 12; a chain 12 is arranged between the lifting motor 11 and the reduction box 6, wherein the first sprocket 111 and the second sprocket 61 are connected by the chain 12; a barrel 2, located at the head of the elevator 1, and a pressure relief port 21 is opened at the upper end of the barrel 2; a pressure relief device 3, the pressure relief device 3 is used to automatically open the pressure relief port 21 when the pressure of the accumulated material in the barrel 2 at the head of the elevator 1 exceeds a predetermined value, so that the accumulated material in the barrel 2 of the elevator 1 flows out from the pressure relief port 21 to release the pressure; and a sealing member 4, used to prevent leakage and dust from flying when the elevator 1 is running.

[0032] In this embodiment, the pressure relief device 3 includes an elastic member 33 , a rotating member 32 and a cover plate 31 . The elastic member 33 can adjust the rotating member 32 to drive the cover plate 31 to open or close automatically.

[0033] Specifically, the cover plate 31 covers the pressure relief port 21 of the barrel 2 , and can swing between a position covering the pressure relief port 21 and a position away from the pressure relief port 21 .

[0034] Specifically, the rotating member 32 is a hinge, one end of the hinge is connected to the cover plate 31 , and the other end of the hinge is connected to the barrel 2 . The hinge serves as a fulcrum for opening and closing and can change the swing angle of the cover plate 31 .

[0035] Specifically, the elastic member 33 is a torsion spring, which is arranged on the rotating shaft of the hinge. There is at least one torsion spring. The elasticity of the torsion spring drives the rotating member 32 to rotate the cover plate 31, so that the cover plate 31 can automatically release pressure under the action of elastic force.

[0036] Specifically, the sealing member 4 is a material baffle plate, which is disposed on the inner side of the cover plate 31 . When the cover plate 31 covers the pressure relief port 21 , the material baffle plate and the pressure relief port 21 are sealed.

[0037] Specifically, the number of baffle plates is at least one, and the baffle plate is arranged on the inner side of the cover plate 31. The baffle plate is arranged so as to cover the inner side of the cover plate 31. When the pressure relief device 3 is in operation, it can prevent the material from flying and leaking.

[0038] In this embodiment, a locking member 5 is further provided at the other end of the cover plate 31 and the barrel 2 relative to the rotating member 32 , and the locking member 5 enables the cover plate 31 and the barrel 2 to be tightly buckled.

[0039] Specifically, the locking member 5 is a snap member. The snap member includes a first snap 51 and a second snap 52. The middle section of the first snap 51 and the second snap 52 are fixedly connected. When closed, the second snap 52 lands on the side wall of the barrel 2, achieving the function of relatively fastening the cover plate 31 and the barrel 2.

[0040] In this embodiment, a discharge port 22 is provided on the side of the barrel for daily discharging work.

[0041] In this embodiment, a maintenance platform 7 is provided on one side of the elevator 1 and is supported by a frame 8 provided on the elevator 1.

[0042] In this embodiment, the elevator 1 includes a tail section 13, a bending section 14, and an intermediate section 16 from bottom to top. At the same time, an inspection section 15 is provided in the bending section 14 and the intermediate section 16, and the elevator 1 further includes a base 17 and a chassis assembly 18.

[0043] The following content is the working principle description of the present invention:

[0044] 1. When the present invention operates, materials are continuously transported to the barrel 2. When the stacking pressure at the barrel 2 part is too high, that is, exceeds the predetermined value, due to the pressure relief device 3 provided, at this time, the torsion spring affected by external force or torque application deforms and stores energy. At this time, the molecular structure inside the elastic material is twisted, resulting in a change in the spiral shape of the torsion spring. The cover plate 3 is pushed open by the materials accumulated at the pressure relief port 21 with the rotating member 32 and the elastic member (torsion spring) 33 as the fulcrums. The accumulated materials are discharged from the pressure relief port 21, thereby reducing the stacking pressure at the head of the elevator 1. When the pressure accumulated at the barrel 2 part returns to the normal standard, due to the pressure relief device 3 provided, at this time, the external force or torque applied to the torsion spring disappears, and the torsion spring begins to release the stored energy. It will gradually return to its original shape, and the cover plate 31 automatically closes back to the upper end of the pressure relief port 21 with the rotating member 32 and the elastic member 33 as the fulcrums, and the pressure relief port 21 is closed by the cover plate 31. A baffle plate 31 is also provided below the cover plate 3 of the present invention to prevent problems such as material leakage or material fluttering and pollution during the operation of the pressure relief device 3.

[0045] 2. The present invention automatically relieves pressure on the head of the elevator 1, that is, the position of the barrel 2, through the pressure relief device 3. The predetermined value of automatic pressure relief is adjusted by replacing the elastic member 33. According to the elastic strength of the elastic member 33, the elastic member generates different pressure relief thresholds. In this embodiment, the spring member 33 is a torsion spring.

[0046] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. Hoist with a head pressure relief device, characterized in that, Including: A lifting motor, the output shaft of the lifting motor is provided with a first sprocket; A speed reducer, the output shaft of the speed reducer is provided with a second sprocket; A chain, the first sprocket and the second sprocket are connected by chain drive; A barrel, located at the head of the elevator, a pressure relief port is opened at the upper end of the barrel; A pressure relief device, which is used to automatically open the pressure relief port when the accumulated material pressure in the barrel at the head of the elevator exceeds a predetermined value, so that the accumulated material in the elevator barrel flows out from the pressure relief port to release the pressure; and A seal, which is used to prevent material leakage and dust flying when the elevator is running.

2. The elevator with a head pressure relief device as described in claim 1, characterized in that: The pressure relief device includes an elastic member, a rotating member and a cover plate, and the elastic member can adjust the rotating member to drive the cover plate to open or close automatically.

3. The elevator with a head pressure relief device as described in claim 2, characterized in that: The cover plate covers the pressure relief port of the barrel and can swing between a position covering the pressure relief port and a position away from the pressure relief port.

4. The elevator with a head pressure relief device according to claim 2, characterized in that: The rotating member is a hinge, one end of the hinge is connected to the cover plate, the other end of the hinge is connected to the barrel, and the hinge serves as a fulcrum for opening and closing to change the swing angle of the cover plate.

5. The elevator with a head pressure relief device according to claim 4, characterized in that: The elastic member is a torsion spring, the torsion spring is arranged on the rotating shaft of the hinge, and the number of torsion springs is at least one.

6. The elevator with a head pressure relief device according to claim 2, characterized in that: The seal is a baffle plate, the baffle plate is arranged inside the cover plate, and when the cover plate covers the pressure relief port, the baffle plate seals the pressure relief port.

7. The elevator with a head pressure relief device according to claim 6, characterized in that: The number of baffle plates arranged is at least 1, and the baffle plates are arranged inside the cover plate.

8. The elevator with a head pressure relief device according to claim 2, characterized in that: A locking member is further arranged at the other end of the cover plate and the barrel relative to the rotating member, and the locking member tightly fastens the cover plate and the barrel.

9. The elevator with a head pressure relief device according to claim 8, characterized in that: The locking member is a snap member, and the snap member includes a first snap and a second snap.

10. The elevator with a head pressure relief device according to claim 1, characterized in that: A maintenance platform is arranged on one side of the elevator where the barrel is located, and the maintenance platform is supported by a frame opened on the elevator.

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