JPH019658Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an injector for injecting viscous substances such as grease and compounds, and the work is facilitated by an attached motor.

Examples will be described with reference to the drawings. Case 1
This is a cylindrical body having a bottom portion 1a and a handle 1b.A motor M capable of forward and reverse rotation is housed near the bottom, and a battery B is housed in the handle. The case 1 also includes a motor forward/reverse rotation switch 2 and a start/stop switch 3. The cylinder 4 is integrally connected to the bottom of the case 1. The threaded rod 5 is rotatably supported by the bottom portion 1a in the solid portion, connected to the motor M, and has a thread cut into the extending portion within the cylinder, with its free end serving as a stopper 5a. The nut body 6 is threadedly engaged with the threaded rod 5, and has an annular ridge 6 in a direction perpendicular to the axis.
Equipped with a. The seal ring 7 is a cup-shaped body with appropriate elasticity, and is fixed to the rim of the nut body.
Press the inner surface of the cylinder at all times. The lid 8 is removably screwed onto the open end of the cylinder, and has a discharge hole 8a in the center.

The present invention is constructed as described above. When the motor M rotates, the threaded rod 5 also rotates, but the nut body 6 does not rotate due to the frictional resistance between the end face of the seal ring and the inner surface of the cylinder, and the frictional resistance between the side face of the seal ring and the viscous material. moves relatively little in the axial direction. First, the nut body is moved back to the vicinity of the bottom portion 1a by rotating the motor, and a viscous substance is filled from the open end of the cylinder, and the lid 8 is attached. A nipple N is screwed into the injection hole of the object C into which the viscous substance is to be injected. Switch switch 2 to advance the nut body, press the discharge hole 8 of the syringe against the end of the nipple, and press switch 3. The nut body moves forward and injects the viscous substance into the nipple. The end of the nipple and the discharge hole 8a are formed in spherical contact so that injection is performed regardless of the angle at which the injector is pressed against the nipple.

A conventional syringe has a nut body with a seal attached to the inner end of a threaded rod that penetrates the bottom of a bottomed cylinder and is screwed into the bottom of the cylinder.
In addition, a handle was fixed to each outer end, and when the handle was turned, it was a nut body that rotated and moved forward to push out the viscous material. When the nut body is moved back to fill with a viscous substance, the threaded rod comes out and the overall length of the syringe becomes longer. When injecting, you must hold the syringe with your left hand and turn the handle at the end of the threaded rod with your right hand. Performing the above two manual operations while accurately pressing the discharge hole of the syringe against the end of the nipple is laborious, apart from the time and labor issues, and may also cause leakage to the outside of the nipple. On the other hand, in the present invention, the threaded rod does not come off and the syringe can be held in a fixed position with both hands, making it possible to accurately press it against the end of the nipple.
It also saves a lot of time. The above are the features of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a front view of the present invention, and FIG. 2 is a front view of the nipple. 1...Case, 1a...Bottom, 1b...Handle,
2, 3... Switch, 4... Cylinder, 5... Threaded rod, 5a... Stopper, 6... Nut body, 6a
...Annular ridge, 7...Seal ring, 8...Lid, 8a...Discharge hole, M...Motor, B...Battery, C...Object, N...Nipple.

Claims (1)

[Scope of utility model registration request] A cylindrical case with a bottom that houses a forward and reverse rotation motor, a cylinder that is integrated into the bottom of the case,
A threaded rod that is rotatably supported at the bottom of the case and connected to the motor shaft and extends into the cylinder, a nut body that is screwed onto the threaded rod, a seal ring that is fixed to the nut body and presses into contact with the inner surface of the cylinder, and a cylinder. An electric injector for viscous substances consisting of a lid that can be attached to and removed from the open end and has a discharge hole in the center.