CN214828398U - Concrete pipe sheet demoulding clamp - Google Patents

Abstract

The utility model provides a concrete pipe piece drawing of patterns anchor clamps, relates to a mechanical fixture, especially concrete pipe piece drawing of patterns anchor clamps, belongs to the mechanical engineering field. It includes the four-bar linkage that quarter butt and stock are constituteed, and two quarter butt one ends are passed through the lifting hook board axis of rotation and are connected with the lifting hook board, and the quarter butt other end passes through the connecting axle with stock one end and is connected, sets up the connecting hole in the middle part position of stock, and the connecting hole lifts by crane department for the driving hook after passing through the connecting axle and connects, and the clamp plate is installed respectively to the other end of stock, installs the limiting plate between stock middle part connecting hole and clamp plate. The key technology is that a locking hook is arranged on a connecting shaft in the middle of a long rod, a hook and a handle are arranged on a rotating shaft of the locking hook, and a tenon is arranged on the inner side of a clamping plate. The utility model has the advantages that: the tenon with the same shape as the segment mortise is designed on the clamp clamping plate and inserted into the segment mortise, so that the segment can be prevented from sliding off in the hoisting process, and the safety is high.

Description

Concrete pipe sheet demoulding clamp

Technical Field

The utility model provides a concrete pipe piece drawing of patterns anchor clamps, relates to a mechanical fixture, especially concrete pipe piece drawing of patterns anchor clamps, belongs to the mechanical engineering field.

Background

At present, the subway construction in China is stepped into a rapid development stage, and subway construction projects in various big cities are proposed. The construction of most of domestic subways is carried out by a shield method, concrete segments are main assembly members for shield construction, the concrete is poured into a mold, and the concrete segments are taken out of the mold after the concrete is solidified to form the concrete segments. Because of the structural characteristics and technical requirements of the duct piece, the duct piece is in a state that the inner arc surface faces downwards in the mold during production, and the vacuum chuck demolding or the hydraulic clamp demolding is generally adopted during demolding. The vacuum chuck demoulding mode has higher requirements on the flatness, smoothness and the like of the outer arc surface of the duct piece, the clamping is not firm, the accident is caused by easy falling off in the process, and the safety is lower. Although the hydraulic clamp is firm in demoulding, the stroke is slow and the efficiency is low due to the structural characteristics of a hydraulic system.

Disclosure of Invention

The to-be-solved problem of the utility model is just not enough to provide a security height more than, not high to outer cambered surface roughness of section, smoothness requirement, anchor clamps that the suitability is strong. The technical scheme is as follows:

the utility model provides a concrete pipe piece drawing of patterns anchor clamps, includes the four-bar linkage that quarter butt and stock are constituteed, and two quarter butt one end is passed through the lifting hook board axis of rotation and is connected with the lifting hook board, and the quarter butt other end passes through the connecting axle with stock one end to be connected, sets up the connecting hole at the middle part position of stock, and the connecting hole lifts by crane department for the driving lifting hook after passing through the connecting axle connection, and the clamp plate is installed respectively to the other end of stock, installs the limiting plate between stock middle part connecting hole and clamp plate. The key technology is that a locking hook is arranged on a connecting shaft in the middle of a long rod, a hook and a handle are arranged on a rotating shaft of the locking hook, and a tenon is arranged on the inner side of a clamping plate.

An anti-skid gasket is arranged on the inner side of the clamping plate.

And a positioning conical plate is arranged on the outer side of the clamping plate, and a conical pin is arranged on the positioning conical plate.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. the four-bar mechanism that quarter butt and stock are constituteed drives the angle change realization of stock and quarter butt and presss from both sides tightly through the lifting hook board when lifting by crane, and the device can convert the gravity of section of jurisdiction self into the clamp force of anchor clamps, need not to exert external force.

2. The tenon with the same shape as the segment mortise is designed on the clamp clamping plate and inserted into the segment mortise, so that the segment can be prevented from sliding off in the hoisting process, and the safety is high.

3. The two side positioning conical plates and the middle limiting baffle plate enable the clamping pipe piece of the clamp not to deviate.

4. The anti-skid gasket is arranged on the clamping plate to increase the friction force between the clamping plate and the duct piece, and the large-plane clamping plate can clamp the duct piece to reduce local damage.

5. The fixture has low requirements on the flatness and smoothness of the outer arc surface of the duct piece and strong applicability.

Drawings

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

FIG. 2 is a schematic view of the locking state of the locking hook of the present invention;

FIG. 3 is a schematic view of the positioning and clamping state of the present invention;

fig. 4 is a schematic view of the clamping state of the clamp of the present invention.

Detailed Description

Referring to fig. 1-4, a concrete pipe piece demolding anchor clamps, four-bar linkage including quarter butt 3 and stock 5 constitution, two quarter butt one end is passed through lifting hook board axis of rotation 1.1 and is connected with lifting hook board 1, the 3 other ends of quarter butt are passed through connecting axle 4 with 5 one end of stock and are connected, set up the connecting hole in the middle part position of stock 5, for driving a vehicle lifting hook department after the connecting hole passes through connecting axle 4 and connects, clamp plate 6 is installed respectively to the other end of stock 5, install limiting plate 8 between 5 middle part connecting holes of stock and clamp plate 6. The key technology is that a locking hook 2 is installed on a long rod middle connecting shaft 4, the locking hook 2 is provided with a hook 2.2 and a handle 2.3 on a locking hook rotating shaft 2.1, a tenon 9 is arranged on the inner side of a clamping plate 6, the tenon 9 is matched with the shape of a tenon hole on a segment, and when the clamping is carried out, the tenon 9 is embedded into the tenon hole to play a positioning effect and play a role in preventing slipping during lifting.

An anti-slip gasket 7 is provided on the inner side of the clamping plate 6.

Set up location taper plate 10 in the outside of pinch-off blades 6, set up taper pin 10.1 on the location taper plate 10, during the locating hole on the mould left and right sides board 11.1 was inserted to taper pin 10.1 on the location taper plate 10 when placing anchor clamps to the centre gripping position of locating anchor clamps on the section of jurisdiction makes the section of jurisdiction can not take place the skew.

In the figure, 11.2 is a front plate and a rear plate of the mould, and 11.3 is a mould trolley.

When the clamp does not clamp the duct piece 12, the handle 2.3 of the locking hook 2 is pulled to enable the locking hook rotating shaft 2.1 to rotate, the hook 2.2 hooks the hook plate rotating shaft 1.1, the hook plate rotating shaft 1.1 cannot freely move up and down, and therefore the clamp is locked, and the clamp is enabled to be kept in an open state. When needing to use anchor clamps centre gripping section of jurisdiction 12, place anchor clamps on section of jurisdiction 12 through the driving a vehicle, locking hook 2 can drive locking hook axis of rotation 2.1 because of the gravity of handle 2.3 and rotate to automatic unblock. During hoisting, the hook plate 1 drives the short rod 3 and the long rod 5 to change angles through the hook plate rotating shaft 1.1 to realize clamping, and the anti-skid gasket 7 is made of rubber woven belts, so that the friction coefficient between the duct piece 12 and the clamping plate 6 is increased, and further the friction force is increased; when the clamp is lowered downwards, the limiting plate 8 contacts the outer arc surface of the duct piece 12, the positioning conical plate 10 is inserted into the positioning holes of the left plate 11.1 and the right plate 11.1 of the die, and the clamp is placed in place; when the clamp is placed in place, the tenon 9 on the clamping plate 6 is just in place, when the clamp is lifted upwards, the tenon 9 is embedded into the mortise of the duct piece 12, the duct piece is prevented from dropping, and the clamping plate 6 is tightly attached to the side surface of the duct piece 12 to lift the duct piece. When the duct piece 12 is put down, after the duct piece 12 is placed stably, the locking hook 2 is lifted upwards, the locking hook hooks the rotating shaft 1.1 of the hook plate, and therefore the clamp is locked and fixed.

Claims (3)

1. The utility model provides a concrete pipe piece demolding anchor clamps, four-bar linkage including quarter butt (3) and stock (5) constitution, two quarter butt one end are passed through hook plate axis of rotation (1.1) and are connected with hook plate (1), quarter butt (3) other end is passed through connecting axle (4) with stock (5) one end and is connected, set up the connecting hole in the middle part position of stock (5), the department of lifting by crane after the connecting hole passes through connecting axle (4) and connects, grip block (6) are installed respectively to the other end of stock (5), install limiting plate (8) between stock (5) middle part connecting hole and grip block (6), characterized by installs locking hook (2) on stock middle part connecting axle (4), locking hook (2) are equipped with couple (2.2) and handle (2.3) on locking hook axis of rotation (2.1), inboard at grip block (6) sets up tenon (9).

2. The concrete pipe stripping jig as claimed in claim 1, wherein an anti-slip pad (7) is provided on the inner side of the clamping plate (6).

3. The concrete pipe stripping jig as claimed in claim 1, wherein a positioning conical plate (10) is arranged on the outer side of the clamping plate (6), and a conical pin (10.1) is arranged on the positioning conical plate (10).

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