CN210825065U

CN210825065U - Portable lifting mechanism for guardrail

Info

Publication number: CN210825065U
Application number: CN201921011009.7U
Authority: CN
Inventors: 王连军; 王萌; 石涛
Original assignee: Lihuayi Weiyuan Chemical Co ltd
Current assignee: Lihuayi Weiyuan Chemical Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-06-23
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a portable lifting mechanism for a guardrail, which comprises a fixing device, a rope limiting device and a speed reducing device; the fixing device comprises a supporting tube and a U-shaped fixing seat, wherein the opening of the U-shaped fixing seat faces downwards, and the supporting tube is horizontally fixed at the top of the U-shaped fixing seat. The speed reducer comprises a T-shaped rod, a U-shaped pull ring and a baffle plate, the tail part of the T-shaped rod is inserted from one end of a supporting tube, the baffle plate is arranged at the other end of the supporting tube, the baffle plate is provided with two insertion holes which can be inserted with the U-shaped pull ring, and the U-shaped pull ring is connected with the tail part of the T-shaped rod after being inserted into the insertion holes; the rope limiting device comprises a limiting ring, a pulley bracket and a pulley, wherein the limiting ring is fixed at the top of the supporting tube through a support, the pulley is arranged on the pulley bracket, and the pulley bracket is obliquely fixed at one end of the supporting tube, which is provided with a baffle. The utility model discloses simple structure, portable, simple to operate can be used to the light load hoist and mount operation of all kinds of guardrail formula platforms.

Description

Portable lifting mechanism for guardrail

Technical Field

The utility model relates to a hoist and mount technical field, concretely relates to portable hoisting mechanism for guardrail.

Background

The chemical plant area needs and maintains the convenience for the construction, adopts steel construction welding frame now mostly, patrols and examines and overhaul the operation safety for guaranteeing the personnel in factory, and high altitude frame border department, tower platform department, lighthouse platform, air cooler platform etc. have all set up the guardrail. When an operator maintains the motor and the lamp at the high-altitude platform, the operator needs to climb the stairs for multiple times of reciprocating transportation, time and labor are wasted, a handheld tool is used for climbing up and down the stairs, a large safety risk exists, but a professional lifting tool is installed on a platform guardrail at each position, the cost is too high, and the tool is not practical. The way that now operating personnel usually used is to use light rope made of hemp to drag the upper and lower transmission of accomplishing the instrument at platform guardrail edge manpower is reciprocal, there are more drawback and safe risk equally like this, it supports the application of force to all rely on the friction of rope and guardrail during hoist and mount, whole process does not play laborsaving effect, stay cord in-process operating personnel takes place to take off the hand or when transferring the speed at the excessive speed, only remedial measure is that operating personnel promptly drags the rope, it is very dangerous under the acceleration of gravity of load, it is injured and instrument or equipment damage to easily take place.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming that prior art exists, provide a portable hoisting mechanism for guardrail.

In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a portable hoisting mechanism for guardrail which characterized in that: comprises a fixing device, a rope limiting device and a speed reducing device; the fixing device comprises a supporting tube and a U-shaped fixing seat, the supporting tube is of a hollow cylindrical structure, the opening of the U-shaped fixing seat faces downwards, the supporting tube is horizontally fixed at the top of the U-shaped fixing seat, a threaded hole is formed in the side wall of the U-shaped fixing seat, and a fixing bolt is inserted into the threaded hole; the speed reducer comprises a T-shaped rod, a U-shaped pull ring and a baffle plate, the tail part of the T-shaped rod is inserted from one end of a supporting tube, the baffle plate is arranged at the other end of the supporting tube, the baffle plate is provided with two insertion holes which can be inserted with the U-shaped pull ring, and the U-shaped pull ring is connected with the tail part of the T-shaped rod after being inserted into the insertion holes; the rope limiting device comprises a limiting ring, a pulley support and a pulley, wherein the limiting ring is fixed to the top of the supporting pipe through a support, a pulley shaft is arranged on the pulley support, the pulley is sleeved with the pulley shaft, the pulley support is obliquely fixed to the top of one end, provided with the baffle, of the supporting pipe, and the pulley support extends outwards relative to the supporting pipe.

Further, the method comprises the following steps of; one end of the T-shaped rod, which is close to the top, is fixedly sleeved with a conical chuck, the diameter of the large end of the conical chuck is larger than the inner diameter of the supporting pipe, and the diameter of the small end of the conical chuck is smaller than the inner diameter of the supporting pipe.

Further, the method comprises the following steps of; the rope limiting device further comprises a limiting plate, the limiting plate is obliquely fixed at the bottom of one end, provided with the baffle, of the supporting pipe and extends outwards relative to the supporting pipe, and a through hole is formed in one end, extending outwards, of the limiting plate.

Further, the method comprises the following steps of; the U-shaped fixing seat is provided with a supporting plate at the bottom of the side wall of one end, close to the U-shaped pull ring, of the U-shaped fixing seat, and the supporting plate and the U-shaped fixing seat are integrally formed.

The utility model has the advantages that:

1) the utility model discloses simple structure, portable, simple to operate can be used to the light load hoist and mount operation of all kinds of guardrail formula platforms.

2) The utility model discloses a rope stop device, through the setting of spacing ring, pulley and locating plate, the relative stability of rope when can guaranteeing the hoist and mount operation prevents that the heavy object from shaking when dragging, has ensured the safety of hoist and mount operation.

3) The utility model discloses decelerator's setting can realize transferring the in-process speed reduction or hoist and mount rope made of hemp accident emergency braking when taking off the hand at the heavy object, has effectively ensured the security of hoist and mount operation.

Drawings

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

fig. 2 is a schematic structural view of the reduction gear of the present invention.

In the figure: 1. supporting a tube; 2. a U-shaped fixed seat; 3. a T-shaped rod; 4. a U-shaped pull ring; 5. a baffle plate; 6. a conical chuck 7 and a limiting ring; 8. a pulley bracket; 9. a pulley; 10. a limiting plate; 11. a support; 12. a through hole; 21. fixing the bolt; 22. and a support plate.

Detailed Description

Example (b):

as shown in fig. 1 and 2, the hoisting mechanism for the portable guardrail comprises a fixing device, a rope limiting device and a speed reducing device.

Fixing device includes stay tube 1 and U-shaped fixing base 2, stay tube 1 is the hollow circular cylinder structure, U-shaped fixing base 2 wholly is the cuboid structure, 2 openings of U-shaped fixing base are down, and its top level fixes stay tube 1, be equipped with the screw hole on the 2 both ends lateral walls of U-shaped fixing base, the downthehole fixing bolt 21 of pegging graft of screw hole.

Decelerator includes T shape pole 3, U-shaped pull ring 4 and baffle 5, T shape pole 3 is close to the fixed cover in top one end and connects toper dop 6, the major diameter of toper dop 6 is greater than 1 internal diameter of stay tube, the microcephaly diameter of toper dop 6 is less than 1 internal diameter of stay tube, 3 afterbody of T shape pole insert in the 1 centre bore of stay tube from 1 one end of stay tube, baffle 5 is fixed locates the 1 other end of stay tube, baffle 5 is equipped with two jacks that can peg graft U-shaped pull ring 4, U-shaped pull ring 4 inserts and stretches into 3 afterbody of fixed connection T shape pole in the 1 centre bore of stay tube after the jack, U-shaped pull ring 4 can follow the jack and remove. U-shaped fixing base 2 is close to 4 one end lateral wall bottoms of U-shaped pull ring and is equipped with backup pad 22, backup pad 22 and U-shaped fixing base 2 integrated into one piece.

Rope stop device includes spacing ring 7, pulley bracket 8, pulley 9 and limiting plate 10, spacing ring 7 passes through support 11 to be fixed at 1 top of stay tube, be equipped with the pulley shaft on the pulley bracket 8, pulley 9 cup joints the pulley shaft, pulley bracket 8 and limiting plate 10 slope respectively are fixed at the top and the bottom that stay tube 1 was equipped with baffle 5 one end, and relative stay tube 1 outwards stretches out, limiting plate 10 outwards stretches out one end and is equipped with through-hole 12.

When specifically using, to example maintenance air cooling platform motor, will the utility model discloses with ordinary hoist and mount rope made of hemp take the scene to, at first loosen fixing bolt 21 and make the horizontal pole of 2 grafting air cooling platform guardrails of U-shaped fixing base, make backup pad 22 be located the perpendicular pole outside of air cooling platform guardrail, then tighten fixing bolt 21 will the utility model discloses firm the installation on air cooling platform guardrail. Then the hoisting hemp rope penetrates through the limiting ring 7, sequentially penetrates through the U-shaped pull ring 4 and the through hole 12 through the pulley 9, is always put down to the ground layer, and after the tool is effectively tied up by the ground layer operating personnel, the air cooling platform operating personnel can finish the hoisting of the tool by pulling the hoisting hemp rope. In the hoisting process, the supporting plate 22 is supported on the vertical rod of the guardrail, thereby ensuring the stability of the utility model.

When the tool needs to be lowered, the tool is vertically lowered, the gravity acceleration exists, if the lowering speed is too high, the T-shaped rod 3 can be pulled, the U-shaped pull ring 4 is close to the baffle 5 relative to one end of the outer side of the support tube 1, and the purpose of lowering the tool at a reduced speed is achieved by extruding the hoisting hemp rope; when the hoisting operation is carried out, the possibility of releasing hands exists because the hoisting is carried out by dragging the hoisting by manpower, the T-shaped rod 3 can be pulled urgently at the moment to block the hoisting hemp rope, the purpose of effective braking is achieved, and the safety of the hoisting operation is ensured.

The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a portable hoisting mechanism for guardrail which characterized in that: comprises a fixing device, a rope limiting device and a speed reducing device;

the fixing device comprises a supporting tube and a U-shaped fixing seat, the supporting tube is of a hollow cylindrical structure, the opening of the U-shaped fixing seat faces downwards, the supporting tube is horizontally fixed at the top of the U-shaped fixing seat, a threaded hole is formed in the side wall of the U-shaped fixing seat, and a fixing bolt is inserted into the threaded hole;

the speed reducer comprises a T-shaped rod, a U-shaped pull ring and a baffle plate, the tail part of the T-shaped rod is inserted from one end of a supporting tube, the baffle plate is arranged at the other end of the supporting tube, the baffle plate is provided with two insertion holes which can be inserted with the U-shaped pull ring, and the U-shaped pull ring is connected with the tail part of the T-shaped rod after being inserted into the insertion holes;

the rope limiting device comprises a limiting ring, a pulley support and a pulley, wherein the limiting ring is fixed to the top of the supporting pipe through a support, a pulley shaft is arranged on the pulley support, the pulley is sleeved with the pulley shaft, the pulley support is obliquely fixed to the top of one end, provided with the baffle, of the supporting pipe, and the pulley support extends outwards relative to the supporting pipe.

2. The hoisting mechanism for a portable guardrail according to claim 1, characterized in that: one end of the T-shaped rod, which is close to the top, is fixedly sleeved with a conical chuck, the diameter of the large end of the conical chuck is larger than the inner diameter of the supporting pipe, and the diameter of the small end of the conical chuck is smaller than the inner diameter of the supporting pipe.

3. The hoisting mechanism for a portable guardrail according to claim 1, characterized in that: the rope limiting device further comprises a limiting plate, the limiting plate is obliquely fixed at the bottom of one end, provided with the baffle, of the supporting pipe and extends outwards relative to the supporting pipe, and a through hole is formed in one end, extending outwards, of the limiting plate.

4. The hoisting mechanism for a portable guardrail according to claim 1, characterized in that: the U-shaped fixing seat is provided with a supporting plate at the bottom of the side wall of one end, close to the U-shaped pull ring, of the U-shaped fixing seat, and the supporting plate and the U-shaped fixing seat are integrally formed.