CN211058088U - Cross column belt wheel lifting square sleeve for exhibition - Google Patents

Abstract

The utility model relates to a cross post band pulley liftable side cover is used in exhibition. The device comprises a guide sleeve, wherein the top and the bottom of the guide sleeve are both connected with a plurality of groups of roller assemblies and are provided with open slots; the peripheral wall of the guide sleeve is connected with a connecting sleeve; the upper part of the guide sleeve is connected with a plurality of groups of connecting lug plates; the roller assembly comprises a sleeve mounting plate fixedly connected to the outer peripheral wall of the guide sleeve, bearing sleeves are fixedly connected to the outer end portions of the sleeve mounting plate, roller shafts transversely arranged are arranged in the two bearing sleeves in a penetrating mode, rollers are coaxially sleeved on the outer peripheral wall of each roller shaft, and the rollers can translate along the axial direction of the roller shafts but cannot rotate along the circumferential direction of the roller shafts; the bearing sleeve is rotationally connected with the roller shaft, and end covers positioned between the bearing sleeve and the roller shaft are fixedly connected to two ends of the bearing sleeve; both sides of the roller are provided with springs sleeved on the roller shaft, and both ends of the springs are respectively tightly propped against the roller and the end cover. The utility model discloses simple structure, liftable arbitrary height and operation are stable safety.

Description

Cross column belt wheel lifting square sleeve for exhibition

Technical Field

The utility model belongs to the technical field of the architectural equipment, especially, relate to a cross post band pulley liftable side cover is used in exhibition.

Background

In daily life, we can see places such as large shopping malls, exhibition halls and the like, and in these places, various display properties such as exhibition booths, exhibition stands, display backgrounds, temporary buildings and the like are temporarily built.

When the exhibition stand is built, a large number of trusses or transversely arranged column pieces are required to be connected with the longitudinal supporting pieces to build the top of the exhibition stand, the trusses or transversely arranged column pieces and the longitudinal supporting columns are connected in a welding or bolt mode, workers are required to climb to a certain height to conduct dismounting and maintenance in the process, safety is poor, in addition, the dismounting and mounting of the connecting mode are long in time consumption, and a large amount of manpower, material resources and financial resources are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, liftable arbitrary height and the stable safe square cover of cross post band pulley for exhibition that moves for the technical problem who exists among the solution well-known technique.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a cross-column belt wheel lifting square sleeve for exhibition comprises a guide sleeve which is longitudinally arranged, wherein the top and the bottom of the guide sleeve are respectively connected with a plurality of groups of roller assemblies, and the guide sleeve is provided with an open slot through which the roller assemblies can pass; the outer peripheral wall of the guide sleeve is connected with a connecting sleeve positioned outside the roller component through a plate; the upper part of the guide sleeve is connected with a plurality of groups of connecting ear plates provided with through holes; the roller assembly comprises sleeve mounting plates which are fixedly connected to the outer peripheral wall of the guide sleeve and are positioned on two sides of the open slot, bearing sleeves which are transversely arranged are fixedly connected to the outer end portions of the sleeve mounting plates, roller shafts which are transversely arranged penetrate through the two bearing sleeves, rollers are coaxially sleeved on the outer peripheral walls of the roller shafts, and the rollers can translate along the axial direction of the roller shafts but cannot rotate along the circumferential direction of the roller shafts; the bearing sleeve is rotatably connected with the roller shaft through a rolling bearing, and end covers positioned between the bearing sleeve and the roller shaft are fixedly connected to two ends of the bearing sleeve; both sides of the roller are provided with springs which are sleeved on the peripheral wall of the roller shaft, and both ends of the springs are respectively tightly propped against the roller and the end cover.

The utility model has the advantages that: the utility model provides a cross column belt wheel lifting square sleeve for exhibition, which can be sleeved outside a support column and connected with the support column in a rolling way by arranging a guide sleeve with a roller component, so that the guide sleeve can do lifting motion with any height along the peripheral wall of the support column; the roller can translate along the axial direction of the roller shaft, when the roller moves to the damage or deformation position of the support column, the roller slides on the roller shaft and generates larger compression on the spring in the sliding direction, when the support column returns to be flat and straight, the roller returns to the middle part of the roller shaft under the thrust action of the spring, the arrangement enables the pressure on the roller shaft to be equal, the roller is prevented from being blocked and deformed, the service life of the lifting square sleeve is prolonged, and the stability of lifting operation is improved; the setting of adapter sleeve is convenient for the utility model discloses can dismantle with truss or other crossbeam spare and be connected the top that constitutes the stand, can avoid the staff to scramble the take the altitude through other drive arrangement drive adapter sleeve lifts such as electric block and carry out the dismouting, improved the security of dismouting and maintenance process.

Preferably: a thrust ball bearing sleeved on the roller shaft is arranged between the spring and the corresponding end cover, the outer ring of the thrust ball bearing is in interference fit with the end cover, and the inner ring of the thrust ball bearing is in interference fit with the roller shaft; two ends of the spring are respectively tightly propped against the roller and the thrust ball bearing.

Preferably: four groups of roller assemblies are connected to the top and the bottom of the guide sleeve, and the roller assemblies are distributed at equal angles along the circumferential direction.

Preferably: the peripheral wall of the connecting sleeve is provided with a through hole and is connected with a cross column through a bolt and a locking nut which are arranged in the through hole in a penetrating way.

Preferably: the outer circumferential surface of the roller shaft is sleeved with an external spline, an internal spline extending along the axial direction of the roller is in interference fit in the roller, and the internal spline is in sliding fit with the external spline.

Drawings

Fig. 1 is a schematic view of the partial sectional structure of the front view of the present invention;

fig. 2 is a schematic top view partially in section;

fig. 3 is a schematic sectional structural view of the roller assembly of the present invention.

In the figure: 1. a support pillar; 2. connecting sleeves; 3. a guide sleeve; 3-1, opening grooves; 4. a roller assembly; 4-1, mounting a sleeve; 4-2, a thrust ball bearing; 4-3, roller shaft; 4-4, end cover; 4-5, bearing sleeve; 4-6, rolling bearings; 4-7, a spring; 4-8, rollers; 5. connecting the ear plates; 6. a cross-shaped column.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:

referring to fig. 1 and 2, the cross-post belt wheel lifting square sleeve for exhibition of the present invention comprises a guide sleeve 3 vertically arranged, four groups of roller assemblies 4 are connected to the top and bottom of the guide sleeve 3, the roller assemblies 4 are distributed along the circumferential direction at equal angles, and an open slot 3-1 for the roller assemblies 4 to pass through is provided on the guide sleeve 3. When the device is used, the guide sleeve 3 is aligned to the support column 1 and sleeved, and the roller assembly 4 clamps the support column 1 and is in rolling connection with the peripheral wall of the support column 1.

As shown in fig. 3, the roller assembly 4 comprises a sleeve mounting plate 4-1 fixedly connected to the outer peripheral wall of the guide sleeve 3 and located at two sides of the open slot 3-1, a transversely arranged bearing sleeve 4-5 fixedly connected to the outer end of the sleeve mounting plate 4-1, a transversely arranged roller shaft 4-3 passing through the two bearing sleeves 4-5, a roller 4-8 arranged on the outer peripheral wall of the roller shaft 4-3, wherein the roller 4-8 can translate along the axial direction of the roller shaft 4-3 but cannot rotate along the circumferential direction of the roller shaft 4-3; specifically, an external spline is sleeved on the peripheral surface of the roller shaft 4-3, an internal spline extending along the axial direction of the roller shaft is in interference fit in the roller 4-8, and the internal spline is in sliding fit with the external spline. The bearing sleeve 4-5 is rotationally connected with the roller shaft 4-3 through a rolling bearing 4-6, and end covers 4-4 positioned between the bearing sleeve 4-5 and the roller shaft 4-3 are fixedly connected with two ends of the bearing sleeve 4-5; springs 4-7 sleeved on the outer peripheral wall of the roller shaft 4-3 are arranged on two sides of the roller 4-8, a thrust ball bearing 4-2 sleeved on the roller shaft 4-3 is arranged between the spring 4-7 and the corresponding end cover 4-4, the outer ring of the thrust ball bearing 4-2 is in interference fit with the end cover 4-4, and the inner ring of the thrust ball bearing 4-2 is in interference fit with the roller shaft 4-3; two ends of the spring 4-7 are respectively tightly propped against the roller 4-8 and the thrust ball bearing 4-2.

The operating principle of the roller assembly 4 is as follows: after the support column 1 is used for a long time, the peripheral wall of the support column can be damaged or deformed, so that the phenomenon of blocking of the rollers 4-8 when the rollers move to the position is caused, and the stability of lifting operation and the service life of the lifting square sleeve are influenced. Through the arrangement, the roller 4-8 can translate along the axial direction of the roller shaft 4-3, when the roller 4-8 runs to the damage or deformation position of the outer peripheral wall of the support column 1, the roller 4-8 slides on the roller shaft 4-3 along with the offset direction of the damage or deformation, the springs 4-7 are arranged on two sides of the roller 4-8, when the roller 4-8 slides on the roller shaft 4-3, the spring 4-7 in the sliding direction is compressed greatly under the pressure, so that the pushing force to the roller 4-8 can be formed, when the support column 1 is leveled and flat, the roller 4-8 can be restored to the middle part of the roller shaft 4-3 under the thrust action of the spring 4-7, so that the pressure applied to the roller shaft 4-3 is equal, the deformation of the roller shaft 4-3 is prevented, the service life is prolonged, and the stability of lifting operation is improved; one end of the spring 4-7 is fixedly connected with the side surface of the roller 4-8, and the other end of the spring 4-7 is fixedly connected with the thrust ball bearing 4-2, so that the friction between the spring 4-7 and the end cover 4-4 is converted into the rolling friction of the thrust ball bearing when the spring 4-7 rotates along with the roller 4-8, and the resistance of the roller 4-8 in the running process is reduced.

The outer peripheral wall of the guide sleeve 3 is connected with a connecting sleeve 2 positioned outside the roller component 4 through a plate; the cross-section of adapter sleeve 2 is the hexagon, has seted up multiunit through-hole on the periphery wall of adapter sleeve 2. The upper part of the guide sleeve 3 is connected with a plurality of groups of connecting ear plates 5 provided with through holes.

The working principle is as follows: when the device is used, the guide sleeve 3 is aligned to the support column 1 and sleeved, and the roller assembly 4 clamps the support column 1 and is in rolling connection with the peripheral wall of the support column 1. Wear to be equipped with the bolt in the through-hole on the periphery wall of adapter sleeve 2 and can dismantle through bolt and lock nut and be connected with cross post 6 or truss, according to the needs at the top of stand, the other end of cross post 6 or truss or with wear to locate the adapter sleeve 2 in the liftable square sleeve on other support column 1 can dismantle the connection, perhaps carry out the butt joint with other cross post 6 or truss and then can dismantle the connection with the periphery wall of adapter sleeve 2 in the liftable square sleeve of wearing to locate on other support column 1. The multiple groups of lifting square sleeves and the cross columns 6 form the top of the exhibition stand; a steel wire rope playing a role in reinforcement is connected between the top of the guide sleeve 3 and the cross column 6 or the truss, the cross column 6 or the truss is connected with a connecting piece with a through hole, and two ends of the steel wire rope are respectively connected with the connecting piece and the connecting lug plate 5; the top of the supporting column 1 is connected with an electric hoist, and a rope is bound on the connecting sleeve 2 and hooked on a hook of the electric hoist. The electric hoist pulls the rope to drive the top of the exhibition stand formed by the liftable square sleeve and the cross column 6 or the truss to lift, and the rollers 4-8 in the roller component 4 tightly hold the support column 1 and are in rolling connection with the support column 1, so that the stability of the lifting process of the liftable square sleeve is improved, and the top of the exhibition stand is locked after running to a proper position.

Claims (5)

1. The utility model provides a cross post band pulley liftable side cover for exhibition, characterized by: the device comprises a guide sleeve (3) which is longitudinally arranged, wherein the top and the bottom of the guide sleeve (3) are both connected with a plurality of groups of roller assemblies (4), and the guide sleeve (3) is provided with an open slot (3-1) through which the roller assemblies (4) can pass; the outer peripheral wall of the guide sleeve (3) is connected with a connecting sleeve (2) positioned outside the roller component (4) through a plate; the upper part of the guide sleeve (3) is connected with a plurality of groups of connecting ear plates (5) provided with through holes;

the roller assembly (4) comprises sleeve mounting plates (4-1) which are fixedly connected to the outer peripheral wall of the guide sleeve (3) and located on two sides of the open slot (3-1), bearing sleeves (4-5) which are transversely arranged are fixedly connected to the outer end portions of the sleeve mounting plates (4-1), roller shafts (4-3) which are transversely arranged penetrate through the two bearing sleeves (4-5), rollers (4-8) are sleeved on the outer peripheral wall of each roller shaft (4-3) in a coaxial mode, and the rollers (4-8) can translate along the axial direction of the roller shafts (4-3) but cannot rotate along the circumferential direction of the roller shafts (4-3); the bearing sleeve (4-5) is rotationally connected with the roller shaft (4-3) through a rolling bearing (4-6), and end covers (4-4) positioned between the bearing sleeve (4-5) and the roller shaft (4-3) are fixedly connected with two ends of the bearing sleeve (4-5); springs (4-7) sleeved on the outer peripheral wall of the roller shaft (4-3) are arranged on two sides of the roller (4-8), and two ends of each spring (4-7) are tightly propped against the roller (4-8) and the end cover (4-4) respectively.

2. The exhibition cross-post pulley liftable square sleeve as claimed in claim 1, wherein: a thrust ball bearing (4-2) sleeved on the roller shaft (4-3) is arranged between the spring (4-7) and the corresponding end cover (4-4), the outer ring of the thrust ball bearing (4-2) is in interference fit with the end cover (4-4), and the inner ring of the thrust ball bearing is in interference fit with the roller shaft (4-3); two ends of the spring (4-7) are respectively tightly propped against the roller (4-8) and the thrust ball bearing (4-2).

3. The exhibition cross-post pulley liftable square sleeve as claimed in claim 1, wherein: four groups of roller assemblies (4) are connected to the top and the bottom of the guide sleeve (3), and the roller assemblies (4) are distributed at equal angles along the circumferential direction.

4. The exhibition cross-post pulley liftable square sleeve as claimed in claim 1, wherein: the peripheral wall of the connecting sleeve (2) is provided with a through hole and is connected with a cross column (6) through a bolt and a locking nut which are arranged in the through hole in a penetrating way.

5. The exhibition cross-post pulley liftable square sleeve as claimed in claim 1, wherein: the outer circumferential surface of the roller shaft (4-3) is sleeved with an external spline, an internal spline extending along the axial direction of the roller shaft is in interference fit in the roller (4-8), and the internal spline is in sliding fit with the external spline.

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