CN213268864U - Pin key type scaffold - Google Patents

Abstract

The utility model relates to a cotter type scaffold. The wheel disc is fixedly arranged on the vertical rod, a plurality of jacks distributed at intervals in the circumferential direction around the axis of the vertical rod are arranged on the wheel disc, and the pins at one end part of the cross rod are inserted into one jack; the cross bar mounting assembly further comprises a screw cylinder and a pressing ring, the screw cylinder is fixedly sleeved on the vertical rod, the outer side wall of the screw cylinder is provided with external threads, the inner ring of the pressing ring is provided with internal threads, the pressing ring is sleeved outside the screw cylinder, and the internal threads are matched with the external nut; the pressing ring can be selectively pressed or separated from the cross rod when being screwed so as to lock or unlock the cross rod. The utility model discloses this technical scheme can lock the horizontal pole through setting up the clamping ring, avoids the accident of horizontal pole to break away from the rim plate, improves reliability and security. And the operation is convenient and quick, and only the pressing ring needs to be screwed.

Description

Pin key type scaffold

Technical Field

The utility model relates to a cotter type scaffold.

Background

The pin-key type scaffold is formed by overlapping rod pieces, has the characteristics of standardization and easy management, and is the scaffold which is most popularized and applied in China at present and has the best effect. Chinese utility model patent specification CN201411897Y discloses a two self-locking type multi-functional steel pipe scaffold of formula of cuting straightly (i.e. round pin key type scaffold), its mode through pegging graft can realize the equipment, but the plug of horizontal pole inserts the toper slot hole of rim plate, can take place to accidentally extract and break away from the phenomenon of rim plate, and the security remains to improve. Especially after repetitious usage, toper slot hole and plug can take place to warp, and the size of toper slot hole and plug changes, appears not hard up after the grafting, influences scaffold's reliability and security.

Disclosure of Invention

An object of the utility model is to provide a pin key type scaffold, including pole setting, horizontal pole and adjustable bracket, be equipped with multiunit horizontal pole installation component along the axis interval of pole setting in this pole setting, this adjustable bracket locates the top of pole setting, the both ends of this horizontal pole are equipped with the bolt respectively, this horizontal pole installation component package is fixedly installed the rim plate in pole setting, be equipped with a plurality of jacks distributed around the axis circumference interval of pole setting on this rim plate, the bolt of a horizontal pole tip inserts in a jack; the cross bar mounting assembly further comprises a screw cylinder and a pressing ring, the screw cylinder is fixedly sleeved on the vertical rod, the outer side wall of the screw cylinder is provided with external threads, the inner ring of the pressing ring is provided with internal threads, the pressing ring is sleeved outside the screw cylinder, and the internal threads are matched with the external nut; the pressing ring can be selectively pressed or separated from the cross rod when being screwed so as to lock or unlock the cross rod.

The utility model discloses this technical scheme can lock the horizontal pole through setting up the clamping ring, avoids the accident of horizontal pole to break away from the rim plate, improves reliability and security. And the operation is convenient and quick, and only the pressing ring needs to be screwed.

Drawings

Fig. 1 shows a front view of the present invention;

fig. 2 shows a perspective view of the present invention;

fig. 3 illustrates a perspective view of the cross bar mounting assembly of the present invention with the clamping ring locking the cross bar;

FIG. 4 shows a schematic view of the pressing ring after being twisted on the basis of FIG. 3 to disengage the pressing ring from the cross bar;

FIG. 5 shows an exploded perspective view of the cross bar mounting assembly;

figure 6 shows a perspective view of the adjustable bracket of the present invention;

figure 7 shows an exploded perspective view of the adjustable bracket of the present invention;

fig. 8 shows a cross-sectional view a-a of fig. 1.

Reference numerals:

10, erecting a rod;

20 cross bars, 201 pins;

30 wheel discs and 301 jacks;

40 screw cylinders;

50, pressing a ring;

60 brackets;

70 screw rods and 701 positioning grooves;

80 nuts, 801 radial rods, 802 radial holes;

the 90 positioning cylinder and the 901 positioning convex strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A pin-key scaffold as shown in fig. 1 to 5, comprising an upright 10, a cross bar 20 and an adjustable bracket, wherein a plurality of sets of cross bar mounting assemblies are arranged on the upright 10 at intervals along the axis of the upright, the adjustable bracket is arranged at the top end of the upright 10, two ends of the cross bar 20 are respectively provided with a pin 201, the cross bar mounting assemblies comprise a wheel disc 30 fixedly mounted on the upright 10, the wheel disc 30 is provided with a plurality of jacks 301 circumferentially distributed at intervals around the axis of the upright, and the pins 201 at one end of the cross bar are inserted into one jack 301;

the cross bar mounting assembly further comprises a screw cylinder 40 and a pressing ring 50, the screw cylinder 40 is fixedly sleeved on the vertical rod 10, the outer side wall of the screw cylinder 40 is provided with an external thread, the inner ring of the pressing ring 50 is provided with an internal thread, the pressing ring 50 is sleeved outside the screw cylinder 40, and the internal thread is matched with the external nut;

the clamping ring 50 is selectively tightened or loosened against the rail 20 to lock or unlock the rail 20 when it is twisted.

In this embodiment, the pressing ring presses the end of the cross rod to clamp and fix the end of the cross rod between the pressing ring and the wheel disc.

This technical scheme can lock the horizontal pole through setting up the clamping ring, avoids the accident of horizontal pole to break away from the rim plate, improves reliability and security.

Each jack 301 extends along the axis of the vertical rod and is in a long strip shape;

the length of each plug 201 is equal to or greater than the length of the socket 301.

This technical scheme reduces the risk that the jack warp through the intensity of lengthening the jack in order to improve the jack, improves reliability and security.

As shown in fig. 6 to 8, the adjustable bracket includes a bracket 60, a screw 70, a nut 80, and a positioning cylinder 90;

the nut 80 is rotatably mounted on the top end of the positioning cylinder 90, and the bottom end of the positioning cylinder 90 is fixedly mounted on the top end of the vertical rod 10;

the bracket 60 is fixedly arranged at the top end of the screw rod 70, the bottom end of the screw rod 70 penetrates through the nut 80 and then is inserted into the positioning cylinder 90, the axis of the screw rod 70 and the axis of the upright rod 10 are coincident, and the nut 80 is in threaded fit with the screw rod 70 so that the screw rod 70 is driven to lift when the nut 80 rotates;

a plurality of positioning grooves 701 extending along the axis of the screw are arranged on the screw 70, and all the positioning grooves 701 are circumferentially distributed at intervals around the axis of the screw;

a plurality of positioning convex strips 901 extending along the axis of the positioning cylinder are arranged in the positioning cylinder 90, and all the positioning convex strips 901 are circumferentially distributed at intervals around the axis of the positioning cylinder;

the number of the positioning ribs 901 is equal to the number of the positioning grooves 701, in the embodiment, the number of the positioning ribs is shown as 2, however, the number of the positioning ribs is not limited to the number shown in the figure, for example, the number of the positioning ribs is 3;

each positioning protrusion 901 is slidably engaged with one positioning groove 701 to limit the relative rotation between the screw 70 and the positioning cylinder 90.

The adjustable bracket disclosed by the technical scheme is simple in structure and convenient to implement. The guide screw rod can be guided to move up and down by the matching of the positioning convex strips and the positioning grooves.

In this embodiment, rim plate, spiral shell section of thick bamboo and a location section of thick bamboo all can be installed fixedly on the pole setting through the welded mode. The nut may be rotatably mounted on the positioning cylinder by a bearing.

The side wall of the nut 80 is provided with a radial stem 801 extending in the radial direction of the nut, the radial stem 801 being provided with a radial hole 802 extending in the radial direction of the nut.

In this embodiment, the rod is inserted into the radial hole, and then the nut is driven to rotate by pulling the rod, so that the nut can be rotated by means of a tool (rod) to lift the screw rod when the bracket supports the heavy object.

Claims (4)

1. The utility model provides a cotter type scaffold, includes pole setting, horizontal pole and adjustable bracket, is equipped with multiunit horizontal pole installation component along the axis interval of pole setting in this pole setting, and the top of pole setting is located to this adjustable bracket, and the both ends of this horizontal pole are equipped with the bolt respectively, and this horizontal pole installation component package is installed the rim plate in the pole setting fixedly, is equipped with a plurality of jacks around the axis circumference interval distribution of pole setting on this rim plate, and the bolt of a horizontal pole tip inserts in a jack, its characterized in that:

the cross bar mounting assembly further comprises a screw cylinder and a pressing ring, the screw cylinder is fixedly sleeved on the vertical rod, the outer side wall of the screw cylinder is provided with external threads, the inner ring of the pressing ring is provided with internal threads, the pressing ring is sleeved outside the screw cylinder, and the internal threads are matched with the external nut;

the pressing ring can be selectively pressed or separated from the cross rod when being screwed so as to lock or unlock the cross rod.

2. The pin-and-socket scaffolding of claim 1, wherein:

each jack extends along the axis of the vertical rod and is in a long strip shape;

the length of each plug pin is equal to or greater than the length of the jack.

3. The pin-and-socket scaffolding of claim 2, wherein:

the adjustable bracket comprises a bracket, a screw rod, a nut and a positioning cylinder;

the nut is rotatably arranged at the top end of the positioning cylinder, and the bottom end of the positioning cylinder is fixedly arranged at the top end of the upright rod;

the bracket is fixedly arranged at the top end of the screw rod, the bottom end of the screw rod penetrates through the nut and then is inserted into the positioning cylinder, the axis of the screw rod and the axis of the upright rod are overlapped, and the nut is in threaded fit with the screw rod so that the screw rod is driven to lift when the nut rotates;

the screw is provided with a plurality of positioning grooves extending along the axis of the screw, and all the positioning grooves are circumferentially distributed at intervals around the axis of the screw;

a plurality of positioning convex strips extending along the axis of the positioning cylinder are arranged in the positioning cylinder, and all the positioning convex strips are circumferentially distributed around the axis of the positioning cylinder at intervals;

the number of the positioning convex strips is equal to that of the positioning grooves;

each positioning convex strip is matched with one positioning groove in a sliding mode so as to limit the relative rotation of the screw rod and the positioning cylinder.

4. The pin-and-socket scaffolding of claim 3, wherein: the side wall of the nut is provided with a radial rod extending in the radial direction of the nut, the radial rod being provided with a radial hole extending in the radial direction of the nut.

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