阅读说明：本技术 一种新型信号蜗轮头 (Novel signal worm wheel head ) 是由 胡春斌 于 2018-07-27 设计创作，主要内容包括：本发明涉及一种新型信号蜗轮头,包括壳体、壳盖、蜗轮及蜗杆及信号指示器,在壳体内蜗轮和蜗杆啮合连接,在壳体外的蜗杆与手轮固装,蜗轮从壳盖穿出,蜗轮的顶面与壳盖顶面平齐,在蜗轮的顶面同轴固装一底盘,在底盘顶面同轴固装一限位套,在限位套内插装信号指示器的凸轮支撑轴,所述的信号指示器包括两个凸轮、凸轮支撑轴、两个接触开关、接线端子、指示盘、指示盘罩壳、圆形支撑盖。所述的圆形支撑盖插装固定在壳盖顶面制有的两圈凸起之间,凸轮支撑轴的下部从圆形支撑盖穿出插入限位套内,并与限位套卡装固定。本蜗轮头,仅需在罩壳处固定几条螺栓或卡扣,其余为插装,操作简单,省时省力。(The invention relates to a novel signal worm wheel head, which comprises a shell, a shell cover, a worm wheel, a worm and a signal indicator, wherein the worm wheel and the worm are meshed and connected in the shell, the worm outside the shell is fixedly installed with a hand wheel, the worm wheel penetrates out of the shell cover, the top surface of the worm wheel is flush with the top surface of the shell cover, a chassis is coaxially and fixedly installed on the top surface of the worm wheel, a limiting sleeve is coaxially and fixedly installed on the top surface of the chassis, a cam supporting shaft of the signal indicator is inserted in the limiting sleeve, and the signal indicator comprises two cams, a cam supporting shaft, two contact switches, a wiring terminal, an indicating dial cover and a circular supporting. The circular supporting cover is inserted and fixed between two circles of bulges arranged on the top surface of the shell cover, and the lower part of the cam supporting shaft penetrates out of the circular supporting cover to be inserted into the limiting sleeve and is clamped and fixed with the limiting sleeve. This worm wheel head only needs several bolts or buckles of fixed in housing department, and the rest is the cartridge, easy operation, labour saving and time saving.)

1. The utility model provides a novel signal worm wheel head, includes casing, cap, worm wheel and worm and signal indicator, and worm wheel and worm meshing are connected in the casing, and worm and hand wheel dress outside the casing are adorned admittedly, and the worm wheel is worn out from the cap, and a chassis is adorned admittedly to the top surface and the cap top surface parallel and level of worm wheel in the top surface is coaxial, its characterized in that: a limiting sleeve is coaxially and fixedly arranged on the top surface of the chassis, a cam supporting shaft of a signal indicator is inserted in the limiting sleeve, the signal indicator comprises two cams, a cam supporting shaft, two contact switches, a wiring terminal, an indicating dial cover shell and a circular supporting cover, the circular supporting cover is inserted and fixed between two rings of bulges arranged on the top surface of the cover shell, the lower part of the cam supporting shaft penetrates out of the circular supporting cover and is inserted in the limiting sleeve and is fixedly clamped with the limiting sleeve, the two cams are sleeved and fixed on the upper part of the cam supporting shaft, the indicating dial is coaxially and fixedly arranged at the top end of the cam supporting shaft, a pointer is arranged at one side of the indicating dial, the lower part of the pointer is fixedly arranged on the top surface of the circular supporting cover, the indicating dial cover shell is fixedly arranged above the circular supporting cover, wire outlet holes at one side are arranged below the indicating dial cover shell, the two cams, the two contact switches are arranged on the top surface of the circular support cover through a support, the contact switches are connected with wiring terminals fixedly arranged on the top surface of the circular support cover through wires, and outgoing wires of the wiring terminals are led out from side outgoing wire holes in the side wall of the indicating disc cover shell and are connected with the central control room.

2. The novel signal worm-gear head according to claim 1, characterized in that: the limiting sleeve is connected with the cam supporting shaft through a buckle or a bolt.

3. The novel signal worm-gear head according to claim 1, characterized in that: the circular supporting cover is connected with the outer ring bulge through a bolt or a buckle.

Technical Field

The invention belongs to the field of valves, relates to a worm gear head, and particularly relates to a novel signal worm gear head.

Background

The worm gear head is a mechanism for controlling the opening of the valve and the medium flow, the traditional worm gear head indicator and the worm gear head shell are complex to install, the worm gear head shell is complex in processing and manufacturing, and the manufacturing cost is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a novel signal worm gear head, which can be used for assembling a worm gear head shell and a signal indicator in a short time, is simple to operate, can be produced in batch during manufacturing and reduces the manufacturing cost.

The technical scheme adopted by the invention for solving the technical problem is as follows:

a novel signal worm wheel head comprises a shell, a shell cover, a worm wheel, a worm and a signal indicator, wherein the worm wheel and the worm are meshed and connected in the shell, the worm and a hand wheel outside the shell are fixedly installed, the worm wheel penetrates out of the shell cover, the top surface of the worm wheel is flush with the top surface of the shell cover, a chassis is coaxially and fixedly installed on the top surface of the worm wheel, a limiting sleeve is coaxially and fixedly installed on the top surface of the chassis, a cam supporting shaft of the signal indicator is inserted in the limiting sleeve, the signal indicator comprises two cams, a cam supporting shaft, two contact switches, a connecting terminal, an indicating disc cover and a circular supporting cover, the circular supporting cover is inserted and fixed between two circles of bulges formed on the top surface of the shell cover, the lower part of the cam supporting shaft penetrates out of the circular supporting cover and is inserted in the limiting sleeve and fixedly clamped with the limiting sleeve, the two cams are sleeved and fixed on, the pointer is installed on one side of the indicating disc, the lower portion of the pointer and the top surface of the circular supporting cover are fixedly installed, an indicating disc cover shell is fixedly installed above the circular supporting cover, a wire outlet hole is formed in one side of the lower portion of the indicating disc cover shell, the two cams are arranged at intervals up and down, the two cams correspond to one contact switch respectively, the two contact switches are installed on the top surface of the circular supporting cover through a support, the contact switches are connected with wiring terminals fixedly installed on the top surface of the circular supporting cover through wires, and wires of the wiring terminals are led out from side wire outlet holes in the side wall of the indicating disc cover shell and are connected with a central.

And the limiting sleeve is connected with the cam supporting shaft through a buckle or a bolt.

And the circular support cover is connected with the outer ring bulge through a bolt or a buckle. The invention has the advantages and positive effects that:

1. the worm gear head can be produced in a module mode in batch, and the manufacturing cost and the installation cost are reduced.

2. The worm gear head only needs to fix a plurality of bolts or buckles at the housing, and the rest are inserted, so that the worm gear head is simple to operate, time-saving and labor-saving.

Drawings

FIG. 1 is a front view of the novel signal worm gear head;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is an exploded view of the new signal worm head.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.

A novel signal worm wheel head comprises a shell 1, a shell cover 2, a worm wheel 16, a worm 6 and a signal indicator, wherein the worm wheel and the worm are connected in a meshed mode in the shell, the worm outside the shell is fixedly installed with a hand wheel 5, the worm wheel penetrates out of the shell cover, the top surface of the worm wheel is flush with the top surface of the shell cover, a chassis 15 is coaxially and fixedly installed on the top surface of the worm wheel, a limiting sleeve 17 is coaxially and fixedly installed on the top surface of the chassis, a cam supporting shaft 11 of the signal indicator is inserted in the limiting sleeve, the signal indicator comprises two cams 9, a cam supporting shaft, two contact switches 10, a wiring terminal 12, an indicating disc 7, an indicating disc housing 4 and a circular supporting cover 14, the circular supporting cover is inserted and fixed between two circles of bulges 3 formed on the top surface of the shell cover, and the lower portion of the cam supporting shaft penetrates out of the circular. The upper part of the cam supporting shaft is fixedly sleeved with two cams, the top end of the cam supporting shaft is coaxially and fixedly provided with an indicating disc, one side of the indicating disc is provided with a pointer 8, the lower part of the pointer is fixedly arranged with the top surface of the circular supporting cover, an indicating disc cover shell is fixedly arranged above the circular supporting cover, and a wire outlet hole 18 at one side is formed below the indicating disc cover shell. The two cams are arranged at intervals up and down, the two cams correspond to one contact switch respectively, the two contact switches are installed on the top surface of the circular supporting cover through a support 13, the contact switches are connected with wiring terminals fixedly installed on the top surface of the circular supporting cover through wires, and outgoing wires of the wiring terminals are led out from side outgoing wire holes in the side wall of the indicating disc cover shell and are connected with the central control room.

Furthermore, a limiting lug 21 is arranged on the inner wall of the limiting sleeve, a limiting groove 20 is arranged at the lower part of the cam supporting shaft, and the cam supporting shaft and the limiting sleeve are connected in a clamping mode through the limiting groove and the limiting lug.

A plurality of threaded holes 22 are formed in the outer ring bulge of the shell cover in a radial symmetrical mode, a plurality of threaded blind holes 19 are formed in the outer wall of the circular supporting cover and the outer ring bulge correspondingly, and the circular supporting cover is connected with the outer ring bulge through bolts or buckles.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept, and these changes and modifications are all within the scope of the present invention.