CN210058851U

CN210058851U - Portable high-pressure sealant injection gun

Info

Publication number: CN210058851U
Application number: CN201920718753.4U
Authority: CN
Inventors: 张东升
Original assignee: Shanghai Yibo Shipping Co Ltd
Current assignee: Shanghai Yibo Shipping Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-02-14
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses a sealed injection gun that glues of portable high pressure, include: the gun comprises a gun body, a first piston and a second piston, wherein the gun body is provided with a gun tube for loading sealant, the front end of the gun tube is provided with a needle-shaped injection nozzle, and the gun tube is internally provided with the first piston for pushing the sealant to the injection nozzle; the pressure cylinder is connected with the rear end of the gun barrel, a second piston is arranged in the pressure cylinder, and the first piston and the second piston are connected through a first piston rod; and the pressure pump is connected with the rear end of the pressure cylinder and used for pumping liquid or gas media into the pressure cylinder behind the second piston. The utility model discloses a needle-like injection nozzle cooperation manpower pressure boost to sealed pushing of gluing is carried out to no power mode, and is small, conveniently carries, has effectively solved and has smeared the old and difficult problem in the sealed trade of gluing among the cable of density.

Description

Portable high-pressure sealant injection gun

Technical Field

The utility model relates to a cable runs through sealed installation technical field, more specifically relates to a sealed glue injection gun of gluing of long and thin mouth, power exempt from, portable high pressure.

Background

In ships, offshore drilling platforms and various buildings, it is often necessary to open openings in structures such as bulkheads and decks for the penetration of cables. In order to seal and protect the cable from fire, smoke, gas, water and the like, at these openings a cable penetration means, i.e. a cable sealing means, is used.

Referring to fig. 1 to 3, fig. 1 to 3 are schematic structural views of a conventional cable sealing device. As shown in fig. 1, the cable sealing device includes a frame 2, and a cable 1 penetrates through the frame 2 and forms a seal with the inner wall of the frame 2 by a sealant 3.

Referring to fig. 2-3, fig. 2 shows a transverse cross-sectional structure of the cable sealing device, and fig. 3 is a view along a-a in fig. 2. As shown in fig. 2 to 3, the portion of the cable inside the frame 2 is sleeved with the sleeve 4 so that there is a gap between the cables 1 and the frame 2 (the sleeve is omitted in fig. 2). Wherein, the end surfaces of the two ends of the sleeve 4 are lower than the end surfaces of the two ends of the frame 2, thereby forming a groove-like structure at the two ends of the frame 2 respectively. This recess structure is used for filling the sealing compound 3.

Referring to fig. 4, fig. 4 is a schematic structural view of a conventional sealant injection gun. As shown in fig. 4, the conventional sealant injection gun 10 is a hand-held type, and injects sealant in an injection tube through an injection nozzle by using a grip of an operator. However, the tube diameter of the existing injection nozzle cannot be made thin and the injection nozzle cannot be made long due to limited grip strength of people, which would otherwise affect the smooth injection of the sealant.

Referring to fig. 5, fig. 5 is a schematic view illustrating an operating state of the sealant injection gun of fig. 4. As shown in fig. 5, when the sealant injection gun 10 of fig. 4 is used to inject sealant into a cable sealing device such as that shown in fig. 2, the nozzle has a large diameter and a short length, so that the nozzle is difficult to extend into the gap between the cables 1 laid out by the sleeve 4 in the groove and the gap between the cables 1 and the frame 2.

Because the sealant has considerable viscosity, the sealant injection gun is used for coating the sealant in the dense cable, so that the phenomenon that the sealant is not uniformly coated and even pores are generated is easily caused. In case of failure, only dilute glue pouring can be adopted. These all bring about the potential safety hazard in sealing performance and become the old and difficult problem in the trade that once time after-sale service also is difficult to solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a portable high-pressure sealant injection gun.

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

a portable high pressure sealant injection gun comprising:

the gun comprises a gun body, a first piston and a second piston, wherein the gun body is provided with a gun tube for loading sealant, the front end of the gun tube is provided with a needle-shaped injection nozzle, and the gun tube is internally provided with the first piston for pushing the sealant to the injection nozzle;

the pressure cylinder is connected with the rear end of the gun barrel, a second piston is arranged in the pressure cylinder, and the first piston and the second piston are connected through a first piston rod;

and the pressure pump is connected with the rear end of the pressure cylinder and used for pumping liquid or gas media into the pressure cylinder behind the second piston.

Furthermore, the injection nozzle is connected with the front end of the gun barrel through a fixed nozzle sleeved at the rear end of the injection nozzle.

Furthermore, the rear end of the injection nozzle is of a flange structure, and the injection nozzle is connected with the front end of the gun barrel through the matching between the flange and the inner wall of the fixed nozzle.

Further, the fixed nozzle is connected with the front end of the gun barrel through threads.

Further, the pressure pump is a manual driving pressure pump.

Further, the pressure pump is a plunger pump, the plunger pump is provided with a cylinder body, a third piston is arranged in the cylinder body, the third piston is connected with a second piston rod, and the second piston rod penetrates out of the cylinder body; the second piston rod is pressed by hand pressing or foot stepping to enable the third piston to move up and down, and the liquid medium contained in the cylinder body is pumped into the pressure cylinder.

Further, a first chamber, a second chamber and a third chamber are arranged in the cylinder body; the third piston is arranged in the first cavity, the second piston rod penetrates out of the first cavity, the second cavity is used for loading liquid media, an oil absorption one-way valve is arranged between the first cavity and the second cavity, a pressure oil one-way valve is arranged in the third cavity, one end of the pressure oil one-way valve is connected with the first cavity, and the other end of the pressure oil one-way valve penetrates through the third cavity and is connected to the pressure cylinder.

Further, the plunger pump is connected with the pressure cylinder through a connecting pipe; one end of the connecting pipe is connected with the oil pressing one-way valve, and the other end of the connecting pipe is connected with the rear end of the pressure cylinder.

Further, the second chamber is provided with an oil return valve.

Further, the second chamber is provided with an exhaust valve.

According to the technical scheme, the short and thick injection nozzle of the existing sealant injection gun is improved into the slender needle-shaped injection nozzle, so that the sealant can conveniently stretch into narrow gaps between cables and between the cables and a frame, which are padded out by a cable sleeve, for injecting the sealant; meanwhile, the pressure cylinder is additionally arranged at the rear end of the barrel of the injection gun, the hand-press type or foot-treading type pressure pump is adopted to pump liquid or gas medium into the pressure cylinder, and the generated high pressure effect is utilized, so that the sealant in the gun barrel can be continuously ejected from the front end of the needle-shaped injection nozzle in a labor-saving manner, and the cable is firmly sealed in the frame. The utility model discloses a pushing away of sealed glue is carried out to no power mode penetrates, and is small, conveniently carries, has effectively solved how to paint the old and difficult problem in the sealed trade of gluing among the cable of density to the blank in this aspect has been filled at home and abroad in the same business.

Drawings

Fig. 1-3 are schematic structural views of a conventional cable sealing device.

Fig. 4 is a schematic view of a conventional sealant injection gun.

Fig. 5 is a schematic view of the operational condition of the sealant injection gun of fig. 4.

Fig. 6 is a schematic structural view of a portable high-pressure sealant injection gun according to a preferred embodiment of the present invention.

Fig. 7-8 are schematic views of the portable high pressure sealant injection gun of fig. 6 in operation.

Detailed Description

The utility model discloses a sealed injection rifle of gluing of portable high pressure is applicable to and for example the cable sealing device that shows of figure 1-figure 3 carries out sealed gluey injection to realize sealing up dense cable 1 in frame 2 through sealed glue 3.

The utility model discloses a core thought lies in, the utility model discloses a portable high-pressure sealant injection gun, include: the gun body, the pressure cylinder and the pressure pump; the gun body is provided with a gun tube for loading sealant, the front end of the gun tube is provided with a needle-shaped injection nozzle, and a first piston for pushing the sealant to the injection nozzle is arranged in the gun tube; the pressure cylinder is connected with the rear end of the gun barrel, a second piston is arranged in the pressure cylinder, and the first piston and the second piston are connected through a first piston rod; the pressure pump is connected with the rear end of the pressure cylinder and used for pumping liquid or gas media into the pressure cylinder behind the second piston.

The slender needle-shaped injection nozzle of the utility model can conveniently extend into the narrow gap between the cables and the frame, which is padded by the cable sleeve, to inject the sealant; meanwhile, the sealant in the gun tube can be continuously ejected from the front end of the needle-shaped injection nozzle in a labor-saving manner by utilizing the high-pressure action generated by the pressure cylinder, so that the cable is firmly sealed in the frame.

The following describes the present invention in further detail with reference to the accompanying drawings.

In the following detailed description of the embodiments of the present invention, for the sake of clarity of the structure of the present invention, it is to be understood that the structure shown in the drawings is not drawn to scale, and is partially enlarged, deformed and simplified, and therefore the present invention is not limited thereto.

In the following detailed description of the present invention, please refer to fig. 6, fig. 6 is a schematic structural view of a portable high-pressure sealant injection gun according to a preferred embodiment of the present invention. As shown in fig. 6, the utility model discloses a portable high-pressure sealant injection gun can include: the injection gun body 20, the pressure cylinder 30 and the pressure pump 40 are arranged in sequence. Wherein the gun body 20 is provided with a barrel 24, a nozzle 21, and a first piston 25 mounted in the barrel 24. The second piston 33 is provided in the pressure cylinder 30, and the first piston 25 and the second piston 33 are connected to each other by a first piston rod 32.

Please refer to fig. 6. The barrel 24 is used to load the sealant. An injection port 23 may be provided at the forward end of barrel 24, with an elongated needle nozzle 21 mounted on port 23. The injection nozzle 21 with the structure can conveniently extend into the narrow gaps between the cables 1 and the frame 2, which are padded by the cable sleeve 4, shown in figures 1-3, so as to perform good injection of the sealant 3.

The first piston 25 is used to push the sealant through the injection port 23 toward the injection nozzle 21 for injection. The first piston 25 has a contour that conforms to the inner wall of the barrel 24 to provide a good air seal with the inner wall of the barrel 24.

A pressure cylinder 30 is mounted at the rear end of the barrel 24; a second piston 33 is provided in the pressure cylinder 30. The second piston 33 has a contour that matches the inner wall of the pressure cylinder 30 so as to form good airtightness with the inner wall of the pressure cylinder 30.

A bore is formed in the rear end of the barrel 24 and a first piston rod 32 is inserted through the bore so that both ends of the first piston rod 32 can be connected to the first piston 25 and the second piston 33, respectively.

The inner space at the rear end of the pressure cylinder 30, which is located behind the second piston 33, forms a chamber 34 which can contain a liquid medium or a gaseous medium.

The pressure pump 40 is connected to the rear end of the pressure cylinder 30; the pressure pump 40 is used to pump a liquid medium or a gaseous medium into the chamber 34 in the pressure cylinder 30 behind the second piston 33.

Please refer to fig. 6. As an alternative embodiment, nozzle 21 may be connected to port 23 at the forward end of barrel 24 by means of a fixed nozzle 22 fitted over the rearward end thereof.

Further, the rear end of nozzle 21 may be formed with a transversely extending flange structure and the elongated forward end of nozzle 21 may be extended out of the forward end of fixed nozzle 22 such that the flange structure at the rear end of nozzle 21 engages the inner wall of fixed nozzle 22. In this way, the nozzle 21 is connected to the injection port 23 at the front end of the barrel 24 by the engagement between the flange and the inner wall of the fixed nozzle 22. The present invention is not limited thereto.

The rear end of the fixed nozzle 22 and the injection port 23 may be fixed by means of screw threads or the like.

Please continue to refer to fig. 6. In a preferred embodiment, the pressure pump 40 may be a manually driven pressure pump, such as a hand or foot operated pressure pump, with a foot operated pressure pump being particularly preferred. Therefore, the utility model discloses avoided the mode that adopts electric drive to carry out the pumping usually. Thus, the operator can conveniently pump the liquid or gas medium into the pressure cylinder 30 through the pressure pump 40 without using construction site resources and only by adopting a hand pressing or foot stepping mode, and the sealant in the gun barrel 24 can be continuously ejected from the front end of the needle-shaped injection nozzle 21 by utilizing the generated high pressure effect in a labor-saving manner, so that the cable 1 is firmly sealed in the frame 2.

Please continue to refer to fig. 6. As a further preferred embodiment, the pressure pump 40 may employ a hydraulic plunger pump for pumping hydraulic oil; the plunger pump 40 may be provided with a cylinder and a third piston (plunger) 46 provided within the cylinder. A second piston rod 42 can be connected to the third piston 46, the second piston rod 42 extending out of the cylinder. Thus, by pressing the second piston rod 42 manually or by foot, the third piston 46 is moved up and down, thereby pumping the hydraulic oil contained in the cylinder body into the pressure cylinder 30.

First, second, and

third chambers

43, 44, 47 may be provided within the cylinder. Wherein the first chamber 43 may be disposed in the second chamber 44 and the third chamber 47 may be disposed below the second chamber 44.

A third piston 46 is disposed within the first chamber 43; the second piston rod 42 extends out of the cylinder from the upper end of the first chamber 43. A handle 41 or a foot pedal 41 may be installed at the upper end of the second piston rod 42 to facilitate manual pressing work.

The second chamber (oil tank) 44 is used for loading hydraulic oil. The present invention is not limited thereto.

An oil suction check valve 45' is arranged between the first chamber 43 and the second chamber 44 for sucking hydraulic oil from the second chamber 44 in a single direction.

A pressure oil check valve 48 is provided in the third chamber 47 for pressing out the hydraulic oil from the first chamber 43 in one direction. One end of a pressurized oil check valve 48 is connected to the first chamber 43 and the other end of the valve passes through the side wall of the third chamber 47 and is connected to the pressure cylinder 30.

Further, the plunger pump 40 may be connected to the pressure cylinder 30 through a connection pipe 50. Wherein, a connection port is processed on the rear end of the pressure cylinder 30; one end of the connection pipe 50 may be connected to the pressure cylinder 30 through a connection port, and the other end of the connection pipe 50 is connected to the pressure oil check valve 48.

The connecting pipe 50 can be in the form of a hose, and the hand-press type or foot-stepping type plunger pump 40 without power drive has a small volume, so that the high-pressure sealant injection gun can be very conveniently carried into a construction site.

In this way, the second piston rod 42 can be driven by human power to move up and down, so as to drive the third piston 46 in the first chamber 43 to move up and down repeatedly, so that the hydraulic oil in the second chamber 44 is sucked into the first chamber 43 through the oil suction one-way valve 45', and then the hydraulic oil sucked into the first chamber 43 is continuously pumped into the chamber 34 at the rear end of the pressure cylinder 30 behind the second piston 33 through the oil suction one-way valve 48 and the connecting pipe 50.

At this time, the second piston 33 is acted by the pressure of the hydraulic oil continuously entering the pressure cylinder 30 and moves towards the barrel 24 of the injection gun, and then the first piston rod 32 connected with the second piston 33 drives the first piston 25 to move towards the front end of the barrel 24, so that the sealant stored in the barrel 24 is continuously ejected from the needle-shaped injection nozzle 21, and the sealant can effectively enter the gap between the cables 1 or the gap between the cables 1 and the frame 2 by using the slender needle-shaped structure of the injection nozzle 21, so that the sealant 3 can uniformly cover the end surface of the cable sleeve 4 along the bottom of the groove, and the cable 1 is firmly sealed in the frame 2.

Referring to fig. 7-8, fig. 8 shows the effect comparison between the portable high-pressure sealant injection gun of the present invention (right view) and the conventional sealant injection gun of fig. 4 (left view) during the injection of sealant. Use the utility model discloses the construction, like planting the tooth, can effectively get rid of the cable interference of intensive arranging, to a group of sealed glue, the clean ground of falling directly injects the department around the sleeve pipe terminal surface and is the bulk of extension, for example every four five centimeters a group around controlling, links into a slice at intensive cable root by oneself. Therefore, difficulties such as too high cable occupancy rate, too close bridge, too poor environment for construction and the like existing in the existing problems can be effectively relieved; the prior once-for-once after-sale service is difficult to solve, and the situations that the filling can not be realized only by using dilute glue and the like can be thoroughly corrected. When the existing sealant injection gun is used for injecting sealant, the injection nozzle is thick in pipe diameter and short in length, so that the injection nozzle is difficult to extend into gaps between cables which are arranged in the groove and are padded out by the sleeve and between the cables and the frame, and the phenomenon that the sealant is not uniformly smeared or even generates pores is easily caused.

As an alternative embodiment, a return valve 45 may also be provided on the second chamber 44.

A vent valve 49 may also be provided in the second chamber 44. The exhaust valve 49 may be a screw and nut fitting structure. Wherein the screw may take the form of a tapered screw. Alternatively, the air outlet guide groove can be processed at a certain corresponding position of the screw and the nut.

In summary, the utility model improves the short and thick injection nozzle of the existing sealant injection gun into a slender needle-shaped injection nozzle, thereby being capable of conveniently extending into the narrow gap between the cables and the frame and being padded out by the cable sleeve for injecting the sealant; meanwhile, the pressure cylinder is additionally arranged at the rear end of the barrel of the injection gun, the hand-press type or foot-treading type pressure pump is adopted to pump liquid or gas medium into the pressure cylinder, and the generated high pressure effect is utilized, so that the sealant in the gun barrel can be continuously ejected from the front end of the needle-shaped injection nozzle in a labor-saving manner, and the cable is firmly sealed in the frame. The utility model discloses a pushing away of sealed glue is carried out to no power mode penetrates, and is small, conveniently carries, has effectively solved how to paint the old and difficult problem in the sealed trade of gluing among the cable of density to the blank in this aspect has been filled at home and abroad in the same business.

The above is only the preferred embodiment of the present invention, and the embodiments are not intended to limit the scope of the patent protection of the present invention, so that all the structural changes equivalent to the contents of the description and the drawings of the present invention should be included in the scope of the present invention.

Claims

1. A portable high pressure sealant injection gun, comprising:

2. The portable high pressure sealant injection gun according to claim 1, wherein said nozzle is connected to the front end of said barrel by a fixing nozzle fitted around the rear end thereof.

3. The portable high pressure sealant injection gun according to claim 2, wherein the rear end of said nozzle is a flange structure, and said nozzle is connected to the front end of said barrel by the engagement between said flange and the inner wall of said fixed nozzle.

4. The portable high pressure sealant injection gun according to claim 2 or 3, wherein the fixed nozzle is screwed to the front end of the barrel.

5. The portable high pressure sealant injection gun according to claim 1 wherein said pressure pump is a manually driven pressure pump.

6. The portable high pressure sealant injection gun according to claim 5, wherein said pressure pump is a plunger pump, said plunger pump having a cylinder with a third piston disposed therein, said third piston being connected to a second piston rod, said second piston rod extending out of said cylinder; the second piston rod is pressed by hand pressing or foot stepping to enable the third piston to move up and down, and the liquid medium contained in the cylinder body is pumped into the pressure cylinder.

7. The portable high pressure sealant injection gun according to claim 6 wherein said cylinder has a first chamber, a second chamber and a third chamber disposed therein; the third piston is arranged in the first cavity, the second piston rod penetrates out of the first cavity, the second cavity is used for loading liquid media, an oil absorption one-way valve is arranged between the first cavity and the second cavity, a pressure oil one-way valve is arranged in the third cavity, one end of the pressure oil one-way valve is connected with the first cavity, and the other end of the pressure oil one-way valve penetrates through the third cavity and is connected to the pressure cylinder.

8. The portable high pressure sealant injection gun according to claim 7 wherein said plunger pump is connected to said pressure cylinder by a connecting tube; one end of the connecting pipe is connected with the oil pressing one-way valve, and the other end of the connecting pipe is connected with the rear end of the pressure cylinder.

9. The portable high pressure sealant injection gun according to claim 7 wherein said second chamber is provided with a return valve.

10. The portable high pressure sealant injection gun according to claim 7 wherein said second chamber is provided with a vent valve.