CN203821205U

CN203821205U - Novel bush hammer

Info

Publication number: CN203821205U
Application number: CN201420071927.XU
Authority: CN
Inventors: 冯家忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-19
Filing date: 2014-02-19
Publication date: 2014-09-10
Anticipated expiration: 2024-02-19

Abstract

The utility model provides a novel bush hammer which comprises a bush hammer main body, a piston rod arranged in the bush hammer main body and a detachable bush hammer head body arranged at the front end of the piston rod. According to the technical scheme of the novel bush hammer provided by the utility model, as the piston rod and the bush hammer head body are detachably connected, a new bush hammer main body can be directly used once the bush hammer main body is damaged without changing the piston rod by detaching the bush hammer, thereby not only lowering the changing cost, but also bring great installation and change convenience to the user.

Description

A kind of novel dabbing machine

Technical field

The utility model relates to highway or bridge engineering field of mechanical technique, relates to particularly a kind of novel dabbing machine.

Background technology

In the construction in highway, bridge or tunnel, often to again watering on the smooth surface of the concrete products having poured, while particularly some old road surfaces being safeguarded to laying again, in order to improve new, the surperficial adhesive power of old concrete, must carry out dabbing processing to the concrete smooth surface of having watered, namely concrete smooth surface is carried out to coarse processing, improve the puckery sense of grabbing of concrete surface.In prior art, there is hand-held or mechanical dabbing machine to carry out the coarse processing on road surface, but these dabbing machines are all generally by piston driving piston rod, on piston rod head, make striking head, but, dabbing machine majority is to carry out dabbing processing on stronger surface, very easily causes the wearing and tearing of striking head, also just means that piston rod must change once striking head breaks down, the cost of changing is larger, has caused the serious waste of resource.

Utility model content

The utility model proposes a kind of novel dabbing machine, solved dabbing machine striking head in prior art and destroyed the wasting of resources problem causing, and made the simple in structure of dabbing machine, easy to operate.

Technical solutions of the utility model are achieved in that

A kind of novel dabbing machine, comprises dabbing owner body, is located at the piston rod in dabbing owner body and is arranged on a detachable dabbing body of described piston rod front end.

Further, for making convenient disassembly and strengthening the stability being connected of a dabbing body and piston rod, in a described dabbing body side surface and piston rod side, be equipped with corresponding pin-and-hole, a described dabbing body carries out interference fit with piston rod by elastic cylindrical pin and described pin-and-hole and is connected.

Further, for a dabbing body is more firmly installed, a described dabbing body rear end also can be connected by conical surface self-locking mode with described piston rod front end.

Further, the stability connecting for strengthening self-locking, the self-locking angle of a described dabbing body rear end and the described piston rod front end conical surface is 3 °～5 °.

Further, the self-locking angle of the conical surface of a described dabbing body rear end and described piston rod front end is 4 °, to reach best self-locking and dismounting effect.

Use technical solutions of the utility model, because piston rod is detachable connection with a dabbing body, once there is damaging a dabbing body that can directly more renew in a dabbing body, and need not dismantle dabbing machine, piston rod is changed, not only reduce replacement cost, also brought the convenience of great installation and replacing to user.

Brief description of the drawings

In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during the utility model embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is dabbing machine structural representation in the utility model specific embodiment one;

Fig. 2 is the structural representation after the assembling of dabbing machine structure in the utility model specific embodiment one;

Fig. 3 is dabbing machine structural representation in the utility model specific embodiment two;

Fig. 4 is the enlarged drawing at the conical surface angle of inclination of A part in Fig. 3;

Fig. 5 is the enlarged drawing at the conical surface angle of inclination of B part in Fig. 3;

Fig. 6 is the structural representation after two kinds of dabbing machine structure assemblings of the utility model specific embodiment.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

See Fig. 1 and Fig. 2, in the utility model specific embodiment, a kind of novel dabbing machine, comprises dabbing owner body 1, is located at the piston rod 2 in dabbing owner body 1 and is arranged on a detachable dabbing body 3 of described piston rod 2 front ends.

See Fig. 1, in the utility model specific embodiment one, the side of a dabbing body 3 is provided with pin-and-hole 31, and the side of piston rod 2 is provided with corresponding pin-and-hole 21, and the pin-and-hole 31 of a dabbing body 3 and the pin-and-hole 21 of piston rod 2 carry out interference fit connection by pin 4.

See Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the utility model specific embodiment two, for a dabbing body 3 is more firmly installed, a dabbing body 3 rear ends can preferably be connected by conical surface self-locking mode with piston rod 2 front ends.

See Fig. 4 and Fig. 5, the stability connecting for strengthening self-locking, in the utility model specific embodiment two, the conical surface self-locking angle [alpha] of a dabbing body 3 rear ends and piston rod 2 front ends is 3 °～5 °.The angle of inclination of the front end of piston rod 2 shown in Fig. 4 is α/2; The angle of inclination of the end face of a dabbing body 3 rear ends that are connected with piston rod 2 front ends shown in Fig. 5 is also α/2.

In the utility model specific embodiment two, the conical surface self-locking angle [alpha] of a dabbing body 3 rear ends and piston rod 2 front ends is installed fixing the most firm in the time of 4 °, and more time saving and energy saving when dismounting, and Comparatively speaking the self-locking angle of 4 ° is best self-locking angle.

Use technical solutions of the utility model, because piston rod 2 and a dabbing body 3 are detachable connection, once there is damaging a dabbing body 3 that can directly more renew in a dabbing body 3, and will after the dismounting of dabbing machine, not change a whole piston rod, when having reduced cost, also reduce the complexity of installing and changing.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a novel dabbing machine, is characterized in that: described dabbing machine comprises dabbing owner body, is located at the piston rod in dabbing owner body and is arranged on a detachable dabbing body of described piston rod front end.

2. novel dabbing machine according to claim 1, is characterized in that: a described dabbing body side surface and piston rod side are equipped with corresponding pin-and-hole, a described dabbing body carries out interference fit with piston rod by elastic cylindrical pin and described pin-and-hole and is connected.

3. novel dabbing machine according to claim 1, is characterized in that: a described dabbing body rear end is connected by conical surface self-locking mode with described piston rod front end.

4. novel dabbing machine according to claim 3, is characterized in that: the self-locking angle of a described dabbing body rear end and the described piston rod front end conical surface is 3 °～5 °.

5. novel dabbing machine according to claim 4, is characterized in that: the self-locking angle of the conical surface of a described dabbing body rear end and described piston rod front end is 4 °.