CN200978788Y - A single cylinder suction device for vacuum bags - Google Patents

Abstract

The utility model discloses a single-cylinder air exhaust device of vacuum bag. The vacuum bag comprises an air exhaust nozzle and an air exhaust tube which are arranged on a vacuum bag body, and is technically characterized in that the air exhaust tube is a single-tube air exhaust tube, a tube mouth of the air exhaust tube is provided with threads, and the air exhaust nozzle is provided with threads matched with the tube mouth; the outer circular wall of the cylinder nozzle can be provided with threads, and the inner circular wall of the air suction nozzle matched with the cylinder nozzle is provided with threads; or the inner circular wall of the cylinder nozzle is provided with screw threads, and the outer circular wall of the matched air suction nozzle is provided with screw threads. The utility model overcomes the defects of the prior art and provides a single-cylinder air extractor with a good matching between the cylinder nozzle of a manual air extractor and the air extracting nozzle of a vacuum bag. The utility model discloses simple structure, laborsaving, evacuation is efficient, convenient operation, can not take place to reveal when bleeding.

Description

A single cylinder suction device for vacuum bags

【Technical field】

The utility model relates to a single cylinder suction device for a vacuum bag.

【Background technique】

Vacuum storage bags are used to store clothes. When the clothes are put into the bag body, seal the mouth of the bag, and then use a manual air pump to pump air from the suction nozzle of the storage bag. The suction nozzle of the storage bag is generally assembled There is a one-way valve plate that can only draw air but not take in air, so that the vacuum storage bag is drawn into a vacuum after repeated pumping by the air extractor.

However, the mouth of the existing manual air pump does not cooperate well with the air suction nozzle of the storage bag. Often the air pump will come out of the air suction nozzle, resulting in a waste of air. Inflator is just more troublesome and laborious to operate.

【Content of utility model】

The purpose of the utility model is to overcome the disadvantages of the above-mentioned technical problems, and provide a single cylinder air extraction device in which the mouth of the manual air extraction cylinder and the air extraction nozzle of the vacuum bag cooperate well. The utility model has the advantages of simple structure, labor saving, high vacuum pumping efficiency, convenient operation and no leakage during pumping.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A single cylinder pumping device for a vacuum bag, comprising a suction nozzle and a suction cylinder arranged on the vacuum bag body, the suction cylinder is a single cylinder suction cylinder, the nozzle of the suction cylinder is provided with threads, and the suction nozzle is provided with Threads to match the above nozzles;

The outer circular wall of the nozzle is provided with threads, and the matching air nozzle is provided with threads on the inner circular wall;

The inner circular wall of the nozzle is provided with threads, and the matching air nozzle is provided with threads on the outer circular wall;

The single-cylinder air pump includes a sleeve and a nozzle, and a piston is arranged in the sleeve, and the piston is connected to the handle through a pull rod;

A layer of baffle is arranged in the air suction nozzle, and an air outlet is arranged on the baffle, and an installation hole is also arranged on the partition; Into the installation hole of the partition, the air outlet is within the range covered by the blocking sheet;

The air extraction nozzle includes a valve seat, a floating plug, an annular gasket, a valve cover, and a compression cock. The bottom surface of the valve seat is provided with an air inlet pad, and the valve seat is provided with a circular cylinder hole. There is a middle air intake hole, and a floating plug is set on the middle air intake hole; the ring gasket is set on the valve seat, and the valve cover and the valve seat are fastened by the circular cylinder cover and the thread in the circular cylinder hole, and the valve cover is equipped with Compress the cock, and press the bottom of the cock against the floating plug;

The air extraction nozzle includes a valve seat, a retaining ring and a sealing cover, and an air outlet is provided on the valve seat; an air flow channel connected with the air outlet is also provided on the valve seat, and an energy Elastic choke piece for unidirectional flow of air.

Compared with the prior art, the utility model has the following advantages: 1. Large air pumping capacity, labor saving and high vacuum pumping efficiency; OK, easy to operate; 3. Simple structure, short pumping distance.

【Description of drawings】

Fig. 1 is a perspective view of a single-cylinder air pump;

Figure 2 is an exploded view of a single cylinder pump;

Fig. 3 is a sectional view of a single cylinder air pump;

Fig. 4 is the structural representation of embodiment one;

Fig. 5 is an enlarged view of part A of Fig. 4;

Fig. 6 is the sectional view of embodiment two;

Fig. 7 is the explosion diagram of embodiment two;

Fig. 8 is the sectional view of embodiment three;

Fig. 9 is a perspective view of the third embodiment;

Fig. 10 is an exploded view of the third embodiment.

【Detailed ways】

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

A single-cylinder air extraction device for a vacuum bag, comprising an air extraction nozzle 1 and an air extraction cylinder 2 arranged on a vacuum bag body, the air extraction cylinder is a single cylinder air extraction cylinder, and the nozzle 210 of the air extraction cylinder is provided with a screw thread 2100 (see figure 1, 2, 3), the air suction nozzle 1 is provided with the thread 1000 (seeing Fig. 5, 7) that is matched with the above-mentioned nozzle.

It can be that the outer circular wall of the nozzle of the air pump is provided with threads, and the matching air nozzle is provided with threads on the inner circular wall; The air extraction nozzle is provided with threads on the outer circular wall. In this way, when pumping air, the nozzle of the suction tube is screwed on the suction nozzle of the vacuum bag, and there is no need to consider that the nozzle will come out of the suction nozzle when pumping air, which is quite convenient and will not cause air leakage.

(See Figures 1, 2, 3) The single-cylinder air pump (2) includes a sleeve (211) and a nozzle (210). The sleeve is a hollow cavity, and a piston (212) is arranged in the sleeve. The piston The pull rod (213) is connected with the handle (214), and the piston in the pull sleeve is drawn by hand on the handle.

Embodiment one (see Fig. 4, 5): one layer partition 100 is provided with in the suction nozzle 10, has more than one air outlet 101 on this partition 100, is also provided with installation hole 102 on the partition; The mouth is also provided with a blocking piece 103, and the mounting shaft 104 of the blocking piece is pressed into the installation hole 102 of the dividing plate 100 tightly. 100 is in full contact; the blocking sheet is a thin sheet made of soft material; when the air is pumped, the blocking sheet 103 is deformed and tilted around, so the air in the bag passes through the gap between the blocking sheet 103 and the partition 100 through the air outlet 101 After entering the pumping tube, it is pulled out; then when the piston is pushed back into the pumping tube, under the action of compressed air in the pumping tube, the blocking piece 103 resets to block the air outlet 101 to prevent the residual air in the pumping nozzle from entering the vacuum bag.

Embodiment 2 (see Figures 6 and 7): The air extraction nozzle 11 includes a valve seat 111, a floating plug 112, an annular gasket 113, a valve cover 114, and a compression cock 115. The bottom surface 1111 of the valve seat 111 is provided with an air inlet pad 1112 , the valve seat is provided with a circular cylinder hole 1114, the circular cylinder hole is provided with a middle air inlet hole 1115, and a floating plug 112 is set on the middle air inlet hole; the ring gasket 113 is set on the valve seat 111, and the valve cover 114 It is fastened with the valve seat 111 through the threads in the circular cylinder cover 114 and the circular cylinder hole 1114. The valve cover 114 is equipped with a compression cock 115, and the bottom end of the compression cock presses on the floating plug 112. When pumping air, the inner wall of the vacuum bag is close to the air intake cushion 1112 of the bottom surface 1111 of the valve seat 111, and the air in the bag flows to the middle air intake hole 1115 in the valve seat 111 through the air holes 1113 around the air intake cushion 1112, and the air in the middle The air in the hole 1115 then promotes the floating plug 112 inserted in the hole, and flows to the air pump. After the air pump has exhausted the air in the bag, the compression cock 115 can be installed on the valve cover 114 to compress the cock. 115 then presses the floating plug 112 in the circular barrel hole 1114 tightly on the middle air inlet 1115, so that the air from the outside cannot enter the vacuum bag, so the vacuum bag is kept in a vacuum state all the time.

Embodiment three (see Figures 8, 9, 10): the suction nozzle 12 includes a valve seat 121, a retaining ring 122 and a sealing cover 123, and the vacuum bag is fixed between the valve seat 121 and the retaining ring 122; The air outlet hole 1211 is also provided with an air flow channel 124 connected with the air outlet hole on the valve seat, and an elastic blocking piece 1212 that can make the air flow flow out in one direction is arranged between the air outlet hole 1211 and the air flow channel 124, and the gas in the vacuum bag is elastically Under the effect of blocking piece, can only flow out in one direction; During pumping, under the effect of pumping cylinder, elastic blocking piece is opened, and gas flows out outwards (the screw thread of pumping nozzle is not shown in the figure).

Claims (7)

1. A single-cylinder air extraction device for a vacuum bag, comprising an air extraction nozzle (1) and an air extraction cylinder (2) arranged on the vacuum bag body, characterized in that the air extraction cylinder is a single cylinder air extraction cylinder, and the nozzle of the air extraction cylinder (210) is provided with screw thread (2100), and air suction nozzle (1) is provided with the screw thread (1000) that is matched with above-mentioned nozzle. 2. A single-cylinder air extraction device for a vacuum bag according to claim 1, characterized in that the outer circular wall of the nozzle is provided with threads, and the matching air extraction nozzle is provided with threads on the inner circular wall. There are threads. 3. A single-tube pumping device for a vacuum bag according to claim 1, characterized in that the inner wall of the nozzle is provided with threads, and the matching air nozzle is provided with threads on the outer wall. There are threads. 4. A single-cylinder air pumping device for a vacuum bag according to claim 2 or 3, characterized in that the single-cylinder air pump (2) includes a sleeve (211) and a nozzle (210). A piston (212) is arranged in the cylinder, and the piston is connected with the handle (214) through a pull rod (213). 5. A single-cylinder air pumping device for a vacuum bag according to claim 4, characterized in that said air pumping nozzle (10) is provided with a layer of partition (100), on which there is an outlet The air hole (101) is also provided with an installation hole (102) on the partition; the air suction nozzle is also provided with a blocking piece (103), and the installation shaft (104) of the blocking piece is pressed into the installation hole of the partition tightly. The vent hole is within the range covered by the blocking sheet. 6. A single-cylinder air pumping device for a vacuum bag according to claim 4, characterized in that the air pumping nozzle (11) includes a valve seat (111), a floating plug (112), an annular gasket (113 ), the valve cover (114), and the compression cock (115). The bottom surface of the valve seat is provided with an air inlet pad (1112), and the valve seat is provided with a circular cylinder hole (1114). The circular cylinder hole is provided with an intermediate inlet The air hole (1115), the middle air inlet is covered with a floating plug (112); the ring gasket (113) is set on the valve seat (111), and the valve cover (114) and the valve seat (111) pass through the circular cylinder cover (114) and the threaded fastening in the circular barrel hole (1114), the valve cover is equipped with a compression cock (115), and the top of the compression cock bottom is pressed on the floating plug (112). 7. A single-cylinder vacuum device for vacuum bags according to claim 4, characterized in that said suction nozzle (12) includes a valve seat (121), a retaining ring (122) and a sealing cover (123) , an air outlet hole (1211) is provided on the valve seat; an airflow channel (124) connected with the air outlet hole is also provided on the valve seat, and an elastic blocking piece that enables the airflow to flow out in one direction is provided between the air outlet hole and the airflow channel (1212).

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