CN216339009U - Special device of demolising of bridge expansion joint waterstop - Google Patents

Abstract

The utility model discloses a special dismantling device for a bridge expansion joint waterstop, which comprises an expansion joint waterstop, a special iron drill and an electric hammer, wherein two sides of the expansion joint waterstop are respectively clamped in a notch of expansion joint section steel, the front end of the special iron drill is a tip, the middle section of the special iron drill is a reverse bending section, the rear end of the special iron drill is an embedded end, the embedded end stretches into a clamping groove of the electric hammer for connection, when the expansion joint waterstop is dismantled, the tip of the special iron drill obliquely stretches into the notch to abut against the waterstop, the special iron drill can penetrate out from between two pieces of expansion joint section steel due to the existence of the reverse bending section, and the tip pushes the expansion joint waterstop to continuously separate from the notch through power generated by vibration of the electric hammer.

Description

Special device of demolising of bridge expansion joint waterstop

Technical Field

The utility model relates to the field of highway and municipal expansion joint maintenance, in particular to a special dismounting device for a water stop belt of a bridge expansion joint.

Background

The expansion joints must be arranged at the bridge head positions of the roads and municipal works and between every two bridges, so that a displacement space is provided for the bridge body after expansion with heat and contraction with cold, and damage caused by mutual extrusion is avoided. Rubber water stops are arranged between reserved gaps of the expansion joint, and the main function of the expansion joint is to prevent dust and impurities from falling into the expansion joint to influence the normal expansion and contraction of the expansion joint; secondly, prevent that the rainwater from passing through in the gap gets into the expansion joint, play the effect of water conservancy diversion that blocks water. The waterstop of the expansion joint is made of rubber, is easy to age in the field environment, loses the elastic expansion function, cracks in the repeated stretching process to cause damage, and has a service life which is different from several years to ten years, so that the waterstop of the expansion joint is a part which needs to be replaced frequently in bridge maintenance.

The waterstop both sides chucking of expansion joint could guarantee its normal use in the recess of expansion joint shaped steel, as shown in fig. 1, need take out it from the recess when demolising the waterstop, ordinary iron borer often is difficult to take out it because the not enough (the space is only 2 ~ 4 cm) of operating space, takes time longer, and the efficiency of construction is very low. Therefore, the application provides a device is demolishd in bridge expansion joint waterstop special use to solve the problem that proposes in the above-mentioned background art.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a special dismantling device for a water stop of a bridge expansion joint, which comprises the water stop of the expansion joint, a special iron chisel and an electric hammer, wherein two sides of the water stop of the expansion joint are respectively clamped in a groove of expansion joint section steel, the front end of the special iron chisel is a pointed end, the middle section of the special iron chisel is a reverse bending section, the rear end of the special iron chisel is an embedded end, and the embedded end extends into a clamping groove of the electric hammer to be connected.

Preferably: the reverse bending section is formed by a first bending section and a second bending section, the bending directions of the first bending section and the second bending section are opposite, and the lengths of the first bending section and the second bending section are 2-4 centimeters, preferably 3 centimeters.

Preferably: the first bending angle in the reverse bending section is b =100 ~ 105 DEG, and the second bending angle is a =105 ~ 120 deg.

Preferably: the embedded end is processed into a quadrangle.

Preferably: the tip length is 2 ~ 3cm, and the flat front end of rear end area point.

The utility model has the technical effects and advantages that:

1. the device is composed of a special iron chisel with a reverse bend and a sharp head at the front end and an embedded electric hammer at the rear end. The reverse bending of device front end can conveniently stretch into the tip in the notch of the expansion joint shaped steel of waterstop installation, demolishs the expansion joint waterstop fast through the power that the vibrations of electric hammer provided. The device can effectively improve the efficiency of demolising of expansion joint waterstop, practices thrift the construction cost of labor, shortens the engineering time, reduces the influence to traffic operation.

2. The quick dismantling device for the bridge expansion joint water stop provided by the utility model has the advantages that the tip is conveniently stretched into the expansion joint section steel notch of the installation of the expansion joint water stop through the reverse bending of the special iron drill rod, and meanwhile, the electric hammer at the rear end vibrates to provide chiseling power, so that the construction labor intensity is reduced.

3. The device is adopted to remove the waterstop of the bridge expansion joint, so that the construction efficiency can be improved by times, the labor cost is saved, the construction time is shortened, and the influence on traffic operation is reduced.

Drawings

Fig. 1 is a schematic view of an installation structure of a water stop of an expansion joint;

FIG. 2 is a schematic structural diagram of the present application;

in the figure: 1. expansion joint profile steel; 2. a notch; 3. an expansion joint waterstop; 4. special iron drill rod; 41. a tip; 42. a reverse bend section; 43. an embedded end; 5. an electric hammer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Referring to fig. 1 to 2, in the present embodiment, a special dismantling device for a water stop of a bridge expansion joint is provided, which includes an expansion joint water stop 3, a special iron rod 4 and an electric hammer 5, two sides of the expansion joint water stop 3 are respectively clamped in a notch 2 of an expansion joint section steel 1, as shown in fig. 1, a front end of the special iron rod 4 is a pointed end 41, a middle section is a reverse bending section 42, the reverse bending section 42 has a first bending angle b =100 to 105 °, a second bending angle a =105 to 120 °, and the bending directions of the two sections are opposite, and the lengths of the two sections are both 2 to 4 centimeters, preferably 3 centimeters; the rear end of the special iron chisel 4 is an embedded end 43 which is processed into a quadrangle, and the embedded end 43 extends into a clamping groove of the electric hammer 5 to be connected.

When the expansion joint water stop 3 is dismantled, the tip 41 of the special iron bar 4 obliquely extends into the groove opening 2 to abut against the water stop 3, the special iron bar 4 can penetrate out from the two expansion joint section steels 1 due to the existence of the reverse bending section 42, and the tip 41 pushes the expansion joint water stop 3 to continuously break away from the groove opening 2 through the power generated by the vibration of the electric hammer 5.

The pointed end 41 is 2-3 cm long, and the rear end is flat and the front end is pointed;

the working principle of the utility model is as follows: the expansion joint waterstop 3 is dismantled fast:

(1) the embedded end 43 of the special iron chisel 4 is embedded into the clamping groove of the electric hammer 5 to complete connection, and the electric hammer 5 is electrified;

(2) the special iron drill rod 4 is inclined, and the pointed end 41 extends into the notch 2 of the expansion joint section steel 1 through the reverse bending section 42 to prop against the expansion joint water stop 3;

(3) start electric hammer 5, electric hammer 5 provides the tip 41 that power made and promotes expansion joint waterstop 3 and break away from in notch 2, and the manual work promotes electric hammer 5 and advances with same angle, and expansion joint stagnant water 3 continuously breaks away from in notch 2.

It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims (5)

1. The utility model provides a device is demolishd in bridge expansion joint waterstop special use, includes expansion joint waterstop (3), special drill rod (4) and electric hammer (5), and the both sides of expansion joint waterstop (3) block respectively in notch (2) of expansion joint shaped steel (1), its characterized in that, the front end of special drill rod (4) is tip (41), and the middle section is reverse bending section (42), and the rear end of special drill rod (4) is for embedding end (43), and embedding end (43) stretch into the draw-in groove internal connection of electric hammer (5).

2. The special dismantling device for the waterstop of the bridge expansion joint according to claim 1, wherein the reverse bending section (42) is composed of a first bending section and a second bending section, the bending directions of the first bending section and the second bending section are opposite, and the length of the first bending section and the length of the second bending section are both 2-4 cm.

3. The special dismantling device for the waterstop of a bridge expansion joint according to claim 2, wherein the first bending angle in the reverse bending section (42) is b = 100-105 °, and the second bending angle is a = 105-120 °.

4. The special dismantling device for the waterstop of a bridge expansion joint according to claim 1, wherein said embedded end (43) is formed in a quadrilateral shape.

5. The special dismantling device for the waterstop of the bridge expansion joint according to claim 1, wherein the length of the pointed end (41) is 2-3 cm, and the rear end of the pointed end is flat and the front end is provided with a pointed end 2.

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