CN220260814U - Impeller extractor - Google Patents

Abstract

The utility model discloses an impeller extractor, and relates to the technical field of drawing tools. The impeller extractor comprises a base, wherein a pulling rod is arranged on the base, one end of the pulling rod is provided with a connector for connecting an impeller, a gear is rotatably arranged on the base, a handle is fixed on the gear, and a meshing part capable of being meshed with the gear is arranged on the pulling rod. The utility model utilizes the cooperation of the gear and the meshing part to pull out the impeller, has convenient operation and labor saving, and has strong pull-out stability and difficult damage to the impeller.

Description

Impeller extractor

Technical Field

The utility model belongs to the technical field of drawing tools, and particularly relates to an impeller extractor.

Background

The water meter utilizes water flow to drive the impeller in the water meter to rotate, and then calculates the flow of the water flow by counting the number of turns of the impeller. The impeller of the water meter is easy to be blocked by welding slag or other blocky substances carried in the water, so that the water meter cannot normally operate, and the impeller needs to be disassembled for cleaning and maintenance.

When the impeller of the electronic water meter is disassembled to release the clamp, the impeller is knocked out by a hammer, a screwdriver and a pipe wrench, so that the impeller sealing ring and the positioning needle are easy to damage, and the operation is time-consuming and labor-consuming and is not easy to control.

Disclosure of Invention

The utility model aims to provide an impeller extractor which aims to solve the technical problem that an impeller of a water meter is difficult to detach in the prior art.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the impeller extractor comprises a base, wherein a pulling rod is arranged on the base, a connector for connecting an impeller is arranged at one end of the pulling rod, a gear is rotatably arranged on the base, a handle is fixed on the gear, and a meshing part capable of being meshed with the gear is arranged on the pulling rod.

The beneficial effects are that: the technical scheme is a further improvement on the prior art. After the connector in the technical scheme is connected with the impeller, an operator can press the handle to enable the gear to rotate, and the meshing effect of the meshing part and the gear can convert the rotation of the gear into the axial movement of the pulling rod, so that the impeller is pulled out. According to the technical scheme, the force applied by an operator can be amplified through the cooperation of the handle, the gear and the meshing part, and the impeller can be pulled out more easily. And the acting force applied to the impeller in the pulling-out process of the impeller is relatively uniform and controllable, so that the impeller can be prevented from being damaged.

As a further improvement, the engagement portion is an annular tooth formed on the pulling rod.

The beneficial effects are that: when the gear rotates, the drawing rod can be axially moved through the annular teeth. Meanwhile, when the pulling rod needs to be rotated to enable the connector to be connected with the impeller through threads, the annular teeth cannot interfere with the gears, and the pulling rod is convenient to rotate.

As a further improvement, one end of the drawing rod, which is far away from the connector, is provided with a sliding rod, a sliding hammer is arranged on the sliding rod in a sliding way, and a limiting part for bearing the knocking of the sliding hammer is arranged on the sliding rod.

The beneficial effects are that: when the impeller is difficult to take off, operating personnel can also use the limited portion of sliding hammer hammering to on the pull rod is transmitted to hammering vibration through the slide bar, thereby utilize the great instantaneous pulling force of hammering vibration to pull out the impeller, further improve the use convenience of this impeller puller.

As a further improvement, the slide bar is detachably connected with the pulling rod.

The beneficial effects are that: the sliding rod can be detached from the drawing rod, and when the sliding rod and the sliding hammer are not needed in general, the sliding rod and the sliding hammer can be stored, so that the weight and the volume of the impeller extractor are reduced, and the impeller extractor is convenient to carry and use.

As a further improvement, the connector is detachably connected with the pulling rod, and the pulling rod is provided with a replacement connector with a different size from the connector.

The beneficial effects are that: to the impeller of model difference, operating personnel can dismantle through changing the replacement joint, have further improved the use convenience of this impeller extractor.

As a further improvement, the connector is of a cylindrical structure provided with external threads.

The beneficial effects are that: an operator can connect the connector with the center hole of the impeller in a threaded manner, and then pull out the impeller.

As a further improvement, the base is provided with a connecting part for fixedly connecting with the water meter.

The beneficial effects are that: in the process of disassembling the impeller, after the base is fixedly connected with the water meter, the stability of the impeller extractor can be effectively improved, and the impeller is prevented from being unstable when being extracted, so that the impeller is prevented from being knocked.

As a further improvement, the connecting ring is provided with a plurality of threaded holes.

The beneficial effects are that: the impeller extractor can be connected with the water meter by utilizing the existing flange structure on the water meter, and the structure is simple and the operation is convenient.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1 of the present utility model;

fig. 2 is a schematic structural view of a connecting ring in embodiment 1 of the present utility model.

Reference numerals illustrate:

1. a base; 2. a connecting ring; 3. a connecting threaded hole; 4. pulling a rod; 5. a connector; 6. a plug; 7. a connecting pin; 8. a gear; 9. a handle; 10. annular teeth; 11. a slide bar; 12. a limit part; 13. a sliding hammer.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The present utility model is described in further detail below with reference to examples.

Specific example 1 provided by the utility model:

referring to fig. 1, an impeller extractor comprises a cylindrical base 1, one end of the base 1 is provided with a connecting part fixedly connected with a water meter, in this embodiment, the connecting part is a connecting ring 2 fixedly connected with the base 1, referring to fig. 2, a plurality of connecting threaded holes 3 are formed in the connecting ring, and the layout of the connecting threaded holes 3 in the connecting ring 2 is the same as that of a water meter flange, so that the base 1 can be connected with the water meter through bolts.

A pulling rod 4 is arranged in the base 1 in a penetrating way, and a connector 5 is arranged at one end of the pulling rod 4 extending into the base 1. In this embodiment, connector 5 is equipped with the cylinder column structure of external screw thread, and the jack has been seted up to the root of connector 5, and the tip integrated into one piece of drawbar 4 has with jack grafting complex plug 6, and the pin hole has all been seted up to the corresponding position of plug 6 and connector 5, is equipped with connecting pin 7 in the pin hole for make connector 5 and drawbar 4 form detachable and be connected, so that change not unidimensional connector 5 according to the impeller of different models. In other embodiments, the connector 5 and the drawing rod 4 may be detachably connected by using a threaded manner, or the connector 5 and the drawing rod 4 may be directly welded and fixed.

The base 1 is rotatably provided with two gears 8, the gears 8 are fixedly provided with handles 9, the handles 9 and the gears 8 are positioned on the same plane, and the drawing rod 4 is provided with a meshing part matched with the gears 8.

In this embodiment, the engagement portion is an annular tooth 10 integrally formed on the draw bar 4, and the cross-sectional shape of the annular tooth 10 is an isosceles trapezoid. The gear 8 is meshed with the annular teeth 10, and the handle 9 can be rotated to enable the gear 8 to rotate, so that the pulling rod 4 is driven to move through the meshing of the annular teeth 10 and the gear 8. Meanwhile, the annular teeth 10 can rotate relative to the gear 8, so that the connector 5 is connected with a threaded hole in the middle of the impeller by rotating the pulling rod 4 under the condition that the base 1 does not rotate.

The one end that connector 5 was kept away from to pull rod 4 is provided with slide bar 11, and the mounting hole that has the internal thread has been seted up to the tip of slide bar 11, and the corresponding tip integrated into one piece of pull rod 4 has the screw thread post, screw thread post and mounting hole screw thread fit to make slide bar 11 and pull rod 4 fixed connection. The end of the sliding rod 11 far away from the drawing rod 4 is fixedly provided with a limiting part 12, in this embodiment, the limiting part 12 is in a disc-shaped structure, and in other embodiments, the limiting part 12 may be a rod body perpendicular to the drawing rod 4. The slide bar 11 is provided with the slide hammer 13, the center of the slide hammer 13 is provided with a sliding hole, the slide hammer 13 is sleeved on the slide bar 11 through the sliding hole, and the slide hammer 13 cannot be separated from the slide bar 11 due to the limiting function of the limiting part 12, and the limiting part 12 can bear the hammering function of the slide hammer 13. The sliding rod 11 and the sliding hammer 13 can be detached from the drawing rod 4 in general, so that the impeller puller has the advantages of light weight, small volume and convenience in use and carrying.

When the water meter is used, the base 1 is fixedly mounted on the water meter through the bolts, then the pull rod 4 is pushed to enable the connector 5 to enter the water meter, and after the connector 5 contacts the impeller, the pull rod 4 is rotated to enable the connector 5 to be in threaded connection with the impeller. Then, the handles 9 are pressed to enable the two handles 9 to be close to each other, so that the gear 8 rotates synchronously with the handles 9, and the annular teeth 10 are meshed with the gear 8 to convert the rotation of the gear 8 into axial movement of the pulling rod 4, so that the impeller is pulled out of the water meter.

The handle 9 and the gear 8 form a lever mechanism, and the shaft of the gear 8 rotationally connected with the base 1 is used as a fulcrum. The structure can amplify the pressing force of operators, so that the impeller can be pulled out of the water meter more easily and in a labor-saving manner. Compared with the mode of using hammer, bottle opener and pipe tongs to knock out the impeller, this impeller extractor is because fixed with the water gauge through base 1, consequently the impeller can not be in the moment of taking off because inertia is suffered to collide with when pulling out, and stability is higher, is difficult for causing the damage to the impeller. And the impeller extractor is simple to operate and convenient to popularize and use.

When the impeller is difficult to pull out, the slide bar 11 and the slide hammer 13 can be additionally arranged on the drawing rod 4, the slide hammer 13 is used for hammering the limiting part 12, the impeller is pulled out by utilizing vibration, and the practicability of the impeller puller is enhanced.

The specific embodiment 2 provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the engagement portion includes a snap ring and racks fixed on two sides of the snap ring, the racks are parallel to the drawing rod 4, an annular groove is formed on the drawing rod 4, and the snap ring is embedded in the annular groove and is in running fit with the annular groove, so that the swivel and the drawing rod 4 can rotate relatively and cannot be separated.

The specific embodiment 3 provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the connector 5 may be replaced by a cylindrical structure with an internal thread formed thereon, for drawing and disassembling the shaft with the external thread, so as to enrich the functions of the impeller extractor.

The specific embodiment 4 provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the connector 5 includes a base body connected with the pull rod 4 and a plurality of parallel clamping rods connected with the base body through bolts, the clamping rods are located on the same circumference, the clamping rods are parallel to the pull rod, and a clamping hook is formed at one end of the clamping rod away from the base body.

When the impeller is used, the clamping rods can extend into the inner side of the impeller from the positions between the blades of the impeller, and then the inner side of the impeller is hooked by the clamping hooks, so that the impeller is pulled out.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The impeller extractor comprises a base and is characterized in that a pulling rod is arranged on the base, a connector for connecting an impeller is arranged at one end of the pulling rod, a gear is rotatably arranged on the base, a handle is fixed on the gear, and a meshing part capable of being meshed with the gear is arranged on the pulling rod.

2. The impeller of claim 1, wherein the engagement portion is an annular tooth formed on the pull rod.

3. The impeller extractor of claim 1, wherein a sliding rod is arranged at one end of the drawing rod far away from the connector, a sliding hammer is arranged on the sliding rod in a sliding manner, and a limiting part for bearing the knocking of the sliding hammer is arranged on the sliding rod.

4. The impeller extractor of claim 3 wherein the slide bar is removably connected to the pull rod.

5. The impeller extractor of claim 1 wherein the connector is detachably connected to the pull rod and the pull rod is configured with a replacement connector that is different in size from the connector.

6. The impeller of claim 5, wherein the connector is a cylindrical structure with external threads.

7. The impeller extractor of claim 1 wherein the base is provided with a connection for fixedly connecting to a water meter.

8. The impeller of claim 7, wherein the connection portion is a connection ring, and the connection ring is provided with a plurality of threaded holes.