CN205832753U - A kind of defecator with novel plastic syringe - Google Patents

Abstract

The utility model relates to a filter device with a novel plastic syringe, comprising a piston (1), a lever fixing device (2), a syringe main body (3), a lever type push rod support device (4), and a lever type push rod (5) , The connecting port (6) of the syringe main body (3) and the syringe filter (7), and the syringe filter (7). The purpose of the invention is to provide a filtering device which integrates a novel plastic syringe and a needle filter. The new plastic syringe has a lever-type push rod. Using the principle of leverage, it can effectively amplify the user's propulsion force, reduce the pressure on the user's hand, and reduce the number of filter paper replacements. The new syringe and needle filter are connected in a spiral manner so that the two will not separate during use, which brings great convenience to the filtration pretreatment in water treatment experiments.

Description

A filter device with a new type of plastic syringe

technical field

The utility model relates to a filter device with a novel plastic syringe, which is divided into two parts: a novel plastic syringe and a needle filter, and belongs to the field of water treatment experimental supplies.

Background technique

In the water treatment experiment, the needle is removed from the head of the ordinary syringe, and the needle filter is installed instead, and the syringe is pushed to pass the sewage in the syringe through the filter paper in the needle filter, which is an effective and commonly used small filter pretreatment device. However, the water samples that need to be pretreated usually contain suspended solids or the concentration of the water samples is too high, which is easy to block the filter paper. It is very difficult to advance with an ordinary syringe, and the syringe and needle filter are easily separated due to the high pressure during use, which hinders the progress of the experiment. The existing solution is to replace the filter paper, and the filter paper needs to be replaced two to three times for a 10mL water sample, which wastes the filter paper and is not environmentally friendly.

Contents of the invention

The purpose of the utility model is to propose a filter device with a new type of plastic syringe for the above existing deficiencies. The new plastic syringe has a lever-type push rod and a water outlet with an outer screw. Using the principle of leverage, the push rod of the lever structure can amplify the propulsion force of the user. When the filter paper is slightly blocked, the syringe push rod can be smoothly pushed forward. The water inlet of the syringe filter used for filtration is provided with an inner screw corresponding to the outer screw of the new syringe water inlet, so that the two are tightly combined in a helical manner and will not fall off by themselves during use.

In order to achieve the above object, the technical scheme of the utility model is as follows:

Filtration unit with new plastic syringe comprising piston (1), lever holding device (2), syringe body (3), lever type push rod support device (4), lever type push rod (5), syringe body (3) and The connector of the syringe filter (7), the syringe filter (7). The syringe main body (3) of the plastic syringe with a lever-type metal push rod has the same specification as the traditional syringe in volume, has a scale corresponding to the volume on it, and is made of plastic. A lever-type push rod support device (4) is installed on the outer wall of the upper part of the main body. It is made of metal. The support device surrounds the main body in a circle. push rod (5). The lever-type push rod is divided into two parts, one part is connected to the piston (1) inside the syringe body (3), and the other part is installed on the lever-type push rod support device (4) outside the syringe body (3), and the two parts are connected by screws . The lever fixing device (2) is installed in the middle of the syringe main body (3) and is made of soft plastic. The plastic ring surrounds the syringe main body (3), and there is a three-quarters circle on a certain place (the inner diameter is smaller than the outer diameter of the push rod). The diameter is slightly larger) soft plastic draw-in slot, and this draw-in slot supports the supporting point of its device (4) with the lever-type push rod on the same vertical line. When the syringe is not in use, the lever-type push rod (5) can be placed in the slot for fixing. The outer spiral of the water outlet of the novel plastic syringe is connected in a spiral manner with the water inlet of the syringe filter (7) at the connecting port (6) of the two.

Description of drawings

Figure 1 is a front view of a filter device with a novel plastic syringe.

Figure 2 is a right side view of the filtration device with the new plastic syringe.

Figure 3 is a front view of the filter device with the new plastic syringe in use.

Among them, (1) is the piston, (2) is the lever fixing device, (3) is the syringe main body, (4) is the lever type push rod supporting device, (5) is the lever type push rod, (6) is the syringe main body (3) ) and the connector of the syringe filter (7), (7) is the syringe filter.

detailed description

The following will clearly and completely describe the technical solution in the embodiment of the utility model in combination with the drawings in the embodiment of the utility model.

The utility model relates to a filter device with a novel plastic syringe. When in use, first take out the lever type push rod (5) from the plastic slot of the lever fixing device (2), lift up the lever type push rod (5) and push the piston (1) to the bottom of the syringe body (3), Then press down the lever push rod (5) to pull the piston (1) to the top of the syringe body (3), and the water sample is sucked into the syringe body (3). Connect the water outlet of the new plastic syringe with the water inlet of the syringe filter (7) equipped with filter paper in a screwed manner, and then lift the lever push rod (5), and the water sample is pressed through the syringe filter to be filtered. After use, the needle filter (7) is unscrewed, and the lever of the lever type push rod (5) of the novel syringe is fixed in the plastic slot of the lever fixing device (2), which is easy to place. The whole operation process is simple and easy. Based on the principle of leverage, the user can save 2-3 times the propulsion force, effectively reducing the pressure on the user's hand, and greatly reducing the replacement of filter paper, saving the environment.

Claims (3)

1. there is a defecator for novel plastic syringe, including piston (1), lever fixing device (2), syringe body (3), lever push rod support means (4), lever push rod (5), syringe body (3) and the seam of syringe filters (7) (6), syringe filters (7)；Syringe body (3) is connected with spiral with syringe filters (7).

A kind of defecator with novel plastic syringe the most according to claim 1, it is characterised in that used is new Plastic syringe, its outlet is provided with external spiral;Its lever push rod (5) is made up of two parts, and a part is positioned at syringe Being connected with piston (1) in main body (3), a part is arranged on lever push rod support means (4), is fixed on lever fixing device (2), in, both are connected with screw;Its lever push rod support means (4) is arranged on syringe body (3) top, by it On two arc metal plate tops screw through lever push rod (5) with reach support purpose；The fixing dress of its lever Put (2) and be arranged on the centre of syringe body (3), it has a flexible plastic draw-in groove, plastics draw-in groove support dress with lever push rod The arc metal plate putting (4) is positioned at same vertical curve.

A kind of defecator with novel plastic syringe the most according to claim 1, it is characterised in that pin used Head filter, its water inlet is provided with internal coiling corresponding with novel injector outlet.