CN216920231U

CN216920231U - Check gate hoist with limiting protection effect

Info

Publication number: CN216920231U
Application number: CN202220406174.8U
Authority: CN
Inventors: 胡丹阳; 胡文圣
Original assignee: Lu'an Yuyuan Mechanical Equipment Co ltd
Current assignee: Lu'an Yuyuan Mechanical Equipment Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-08
Anticipated expiration: 2032-02-25

Abstract

The utility model provides a check gate hoist with a limiting protection effect, belongs to the technical field of check gate hoists, and is used for solving the problems that the existing check gate hoist can generate larger pressure on a screw rod and the service life of the screw rod is shortened. The worm-gear type lifting device comprises a base, wherein a cylindrical shell and a square shell are fixed on the base, a screw sleeve is arranged on the cylindrical shell, a worm wheel is fixed on the screw sleeve, two long notches are formed in the square shell, a worm is arranged between the two long notches, a fixing ring is rotatably arranged at the upper end of the screw sleeve, two ends of the worm are rotatably connected with lifting rings, and a fixing frame is connected between the fixing ring and the lifting rings; when the screw rod is blocked from descending, the worm and the worm wheel are lifted upwards, so that the pressure on the screw rod is prevented; the operator is prompted by the sense of hearing and the sense of hearing at the same time, so that the operator can stop rotating the crank in time; when the screw is stressed, the rotation resistance of the worm is increased, the stress is reduced as much as possible, and the screw is prevented from being bent or broken.

Description

Check gate hoist with spacing protection effect

Technical Field

The utility model belongs to the technical field of check gate opening and closing machines, and relates to a check gate opening and closing machine with a limiting protection effect.

Background

The check gate hoist is a machine used in various large-scale water supply and drainage, water conservancy and hydropower engineering and used for controlling the lifting of various large and medium-sized cast iron gates and steel gates to open and close. The sluice gate is characterized in that the sluice gate comprises a screw type hoist, has a very simple structure, is relatively simple and convenient to install, and is widely applied to opening and closing sluice gates on culvert gates and water diversion hubs of channels.

At present, the more check gate hoist used on the market is a manual screw hoist, and due to the threaded connection relation between a screw rod and a screw sleeve, the screw rod can be lifted only by rotating the screw sleeve, and in the descending process of the screw rod, if the bottom of a gate is blocked by impurities such as stones or the gate is descended in place, an operator still controls the screw rod to descend, so that the screw rod is easily bent, the screw rod is seriously broken even, and the service life of the screw rod is shortened.

Based on this, we have designed a check gate headstock gear with spacing protection effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a check gate hoist with a limiting protection effect, which aims to solve the technical problems that: how to reduce the pressure that causes the screw rod in the use of check gate headstock gear, increase screw rod life.

The purpose of the utility model can be realized by the following technical scheme:

a check gate hoist with a limiting protection effect comprises a base, wherein a cylindrical shell is fixed at the upper end of the base, a square shell is fixed at the side end of the cylindrical shell, mounting holes are formed in the upper side wall and the lower side wall of the cylindrical shell, screw sleeves are arranged in the mounting holes, screw rods are connected in the screw sleeves in a threaded mode, worm gears are fixed on the outer sides of the screw sleeves and located in the cylindrical shell, a thrust bearing is arranged between the bottom of the worm wheel and the cylindrical shell, two opposite side walls of the square shell are both provided with a long notch, a worm is arranged between the two long notches, and the worm is meshed with the worm wheel, a crank is fixed at one end of the worm, an annular groove is formed in the upper end of the screw sleeve, a fixing ring is rotatably arranged in the annular groove, two ends of the worm are respectively rotatably connected with lifting rings, the lifting rings are positioned outside the square shell, and a fixing frame is connected between the fixing ring and the two lifting rings.

The outside border of long notch is fixed with the rubber circle, and the side that promotes the ring and is close to square shell is fixed with the closing plate, and closing plate and rubber circle laminating.

Structure more than adopting, along with the lift of worm, the closing plate covers in the long notch outside all the time, prevents inside impurity such as rainwater or dust gets into square shell, provides the protection to worm wheel and worm.

The outer side of the square shell is fixed with a plurality of fixed blocks which are distributed at equal intervals, and the side end of the sealing plate is fixed with a metal elastic sheet.

Structure more than adopting, along with the closing plate rises, metal shrapnel slides along a plurality of fixed blocks to it is obstructed to send out the impact suggestion operating personnel gate bottom, needs the stall crank.

The upper end of cylindricality shell is fixed with the arc, and solid fixed ring's the outside is provided with the mark ring, and mark ring and arc are gone up along aligning.

Structure more than adopting, when the worm wheel rose, can drive solid fixed ring and rise, and operating personnel can judge whether the worm wheel rose through the alignment condition of observing mark ring sum arc top edge, makes things convenient for operating personnel more audio-visual observation worm wheel to rise, the stall crank.

And a plurality of friction plates which are distributed at equal intervals are fixed on the inner wall of the upper side of the long notch.

By adopting the structure, when the operator does not stop rotating the crank in time, the worm can continuously rise to be in contact with the friction plate and gradually increase the pressure between the worm and the friction plate, so that the operator is prevented from rotating the worm, and the pressure on the screw is prevented from further increasing.

An observation window is formed in the side end of the square shell, and a transparent acrylic plate is mounted on the observation window.

By adopting the structure, the working states of the worm wheel and the worm can be observed, and the worm wheel and the worm are convenient to overhaul and maintain in time.

Compared with the prior art, this check gate headstock gear with spacing protection effect has following advantage:

1. through swivel nut, square shell, cylindricality shell, worm and worm wheel, when the screw rod descends and is obstructed, upwards lifting worm and worm wheel prevent to cause pressure to the screw rod, and the operating personnel of being convenient for in time inform rotate the crank.

2. Through fixed block and metal shrapnel, indicate operating personnel from the sense of hearing direction, indicate operating personnel from the vision direction through arc and mark ring, the operating personnel of being convenient for in time received signal to the stall crank.

3. The rotation resistance of the worm is increased through the friction plate, when the screw is stressed, the force is reduced as much as possible, and the screw is prevented from being bent or broken.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a partial cross-sectional structural schematic view of a square housing and a cylindrical housing of the present invention;

FIG. 3 is a schematic structural view of a part of the components of the present invention;

FIG. 4 is an enlarged schematic view of the utility model at A in FIG. 2;

fig. 5 is a partial structural schematic diagram of the present invention.

In the figure: 1. a base; 2. a cylindrical housing; 3. a square housing; 4. a threaded sleeve; 5. a worm gear; 6. a long slot opening; 7. a worm; 8. a fixing ring; 9. a lifting ring; 10. a fixed mount; 11. a crank; 12. a rubber ring; 13. a sealing plate; 14. a metal spring sheet; 15. a fixed block; 16. a marker ring; 17. an arc-shaped plate; 18. a friction plate; 19. a transparent acrylic sheet; 20. and a thrust bearing.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-5, the embodiment provides a check gate hoist with a limiting protection effect, which comprises a base 1, a cylindrical shell 2 is fixed on the upper end of the base 1, a square shell 3 is fixed on the side end of the cylindrical shell 2, mounting holes are formed on the upper and lower side walls of the cylindrical shell 2, a screw sleeve 4 is arranged in the mounting hole, a screw rod is connected with the screw sleeve 4 through a thread, a worm wheel 5 is fixed on the outer side of the screw sleeve 4, the worm wheel 5 is positioned in the cylindrical shell 2, a thrust bearing 20 is arranged between the bottom of the worm wheel 5 and the cylindrical shell 2, long notches 6 are formed on two opposite side walls of the square shell 3, a worm 7 is arranged between the two long notches 6, the worm 7 is meshed with the worm wheel 5, a crank 11 is fixed on one end of the worm 7, an annular groove is formed on the upper end of the screw sleeve 4, a fixing ring 8 is rotatably arranged in the annular groove, two ends of the worm 7 are respectively rotatably connected with a lifting ring 9, the lifting rings 9 are located outside the square housing 3, and a fixing frame 10 is connected between the fixing ring 8 and the two lifting rings 9.

A rubber ring 12 is fixed at the outer side edge of the long notch 6, a sealing plate 13 is fixed at the side end of the lifting ring 9 close to the square shell 3, and the sealing plate 13 is attached to the rubber ring 12; along with the lift of worm 7, sealing plate 13 covers all the time in the long notch 6 outside, prevents that impurity such as rainwater or dust from getting into square shell 3 inside, provides the protection to worm wheel 5 and worm 7.

A plurality of fixing blocks 15 distributed at equal intervals are fixed on the outer side of the square shell 3, and metal elastic sheets 14 are fixed on the side ends of the sealing plate 13; as the sealing plate 13 rises, the metal elastic sheet 14 slides along the fixing blocks 15, and gives an impact sound to prompt an operator that the bottom of the gate is blocked and the rotation of the crank 11 needs to be stopped.

An arc-shaped plate 17 is fixed at the upper end of the cylindrical shell 2, a marking ring 16 is arranged on the outer side of the fixing ring 8, and the marking ring 16 is aligned with the upper edge of the arc-shaped plate 17; when worm wheel 5 rose, can drive solid fixed ring 8 and rise, and operating personnel can judge whether worm wheel 5 rose through the alignment condition of observing mark ring 16 and arc 17 upper limb, makes things convenient for operating personnel more audio-visual observation worm wheel 5 to rise, stop rotating crank 11.

A plurality of friction plates 18 which are distributed at equal intervals are fixed on the inner wall of the upper side of the long notch 6; when the operator does not stop rotating the crank 11 in time, the worm 7 continuously rises to be in contact with the friction plate 18, and the pressure between the worm 7 and the friction plate 18 is gradually increased, so that the operator is prevented from rotating the worm 7, and the pressure applied to the screw is prevented from further increasing.

An observation window is arranged at the side end of the square shell 3, and a transparent acrylic plate 19 is arranged on the observation window; the working states of the worm wheel 5 and the worm 7 can be observed, and the maintenance is convenient and timely.

In the present embodiment, the fixing means are all the most commonly used fixing connection means in the field, such as welding, bolt connection, etc.

The working principle of the utility model is as follows:

an operator rotates the crank 11 to drive the worm 7 to rotate, the worm 7 drives the worm wheel 5 and the screw sleeve 4 to rotate, so that the lifting of the screw rod is controlled, in the process of controlling the screw rod to descend, when the bottom of the gate is blocked, the screw rod can not continue to descend, the operator continues to rotate the crank 11, the screw sleeve 4 rotates to drive the worm wheel 5 and the worm 7 to move upwards, the worm 7 and the crank 11 are synchronously driven to move upwards through the fixing frame 10, the operator can judge that the bottom of the gate is blocked by sensing the upward movement of the crank 11, the crank 11 needs to be stopped to rotate, and along with the rising of the sealing plate 13, the metal elastic sheet 14 slides through the fixing blocks 15 and sends out an impact sound to prompt the operator that the bottom of the gate is blocked, the crank 11 needs to be stopped to rotate, in addition, when the worm wheel 5 rises, the fixing ring 8 can be driven to rise, the operator can observe the alignment condition of the upper edges of the marking ring 16 and the arc-shaped plate 17, judge whether worm wheel 5 rises, make things convenient for more audio-visual observation of operating personnel worm wheel 5 to rise, stop rotating crank 11, many-sided while is to the operating personnel suggestion, make operating personnel in time stop rotating crank 11, if operating personnel does not in time stop rotating crank 11, worm 7 can continuously rise to contact with friction disc 18, the screw rod receives pressure this moment, the screw rod receives on decurrent pressure counteracts worm 7, increase gradually its and friction disc 18 between pressure, stop operating personnel to rotate worm 7 with this, prevent that the pressure that the screw rod received from further increasing.

In conclusion, through the threaded sleeve 4, the square shell 3, the cylindrical shell 2, the worm 7 and the worm wheel 5, when the screw is blocked from descending, the worm 7 and the worm wheel 5 are lifted upwards, so that pressure on the screw is prevented, and an operator can conveniently and timely inform the rotating crank 11; the fixing block 15 and the metal elastic sheet 14 prompt an operator from the auditory direction, and the arc-shaped plate 17 and the marking ring 16 prompt the operator from the visual direction, so that the operator can receive signals in time, and the crank 11 stops rotating; the friction plate 18 increases the rotation resistance of the worm 7, and when the screw is stressed, the force is reduced as much as possible, so that the screw is prevented from being bent or broken.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A check gate hoist with limiting protection effect comprises a base (1) and is characterized in that a cylindrical shell (2) is fixed at the upper end of the base (1), a square shell (3) is fixed at the side end of the cylindrical shell (2), mounting holes are formed in the upper side wall and the lower side wall of the cylindrical shell (2), a threaded sleeve (4) is arranged in each mounting hole, a screw rod is connected with the threaded sleeve (4) in a threaded manner, a worm wheel (5) is fixed on the outer side of the threaded sleeve (4), the worm wheel (5) is located inside the cylindrical shell (2), a thrust bearing (20) is installed between the bottom of the worm wheel (5) and the cylindrical shell (2), long notches (6) are formed in two opposite side walls of the square shell (3), a worm (7) is arranged between the two long notches (6), the worm (7) is meshed with the worm wheel (5), a crank (11) is fixed at one end of the worm (7), the upper end of the screw sleeve (4) is provided with an annular groove, a fixing ring (8) is rotatably arranged in the annular groove, two ends of the worm (7) are respectively rotatably connected with lifting rings (9), the lifting rings (9) are positioned outside the square shell (3), and a fixing frame (10) is connected between the fixing ring (8) and the two lifting rings (9).

2. The check gate hoist with limit protection effect according to claim 1, characterized in that a rubber ring (12) is fixed at the outer edge of the long notch (6), a sealing plate (13) is fixed at the side end of the lifting ring (9) close to the square outer shell (3), and the sealing plate (13) is attached to the rubber ring (12).

3. The check gate hoist with limit protection effect according to claim 2, characterized in that a plurality of fixed blocks (15) are fixed on the outer side of the square housing (3) and are distributed at equal intervals, and a metal spring plate (14) is fixed on the side end of the sealing plate (13).

4. The check gate hoist with limit protection effect according to claim 1 or 2, characterized in that an arc-shaped plate (17) is fixed at the upper end of the cylindrical housing (2), a marking ring (16) is arranged at the outer side of the fixing ring (8), and the marking ring (16) is aligned with the upper edge of the arc-shaped plate (17).

5. The gate hoist with limiting protection effect according to claim 1, characterized in that a plurality of friction plates (18) are fixed on the inner wall of the upper side of the long notch (6) and are distributed at equal intervals.

6. The gate hoist with the limiting protection effect according to claim 1, wherein an observation window is formed in the side end of the square housing (3), and a transparent acrylic plate (19) is mounted on the observation window.