CN105757391B - One kind tightens up formula mouth of pipe plug - Google Patents

Abstract

The invention discloses a tightening type nozzle plug, which comprises a pipe plug. The pipe plug includes a cover body and an outer wrapping surface and an inner wrapping surface wrapping the pipe wall. A pull handle is arranged on the cover body. One end of the pull handle is connected to The edge of the cover body is vertically hinged, and a rotating tightening device is provided on the lifting handle; there is a steel wire channel surrounding the tube body for passing through the steel wire on the outer wrapping surface. Compared with the prior art, a tightening nozzle plug of the present invention uses a steel wire to tighten the pipe wall, and then uses a pull handle to tighten and pull the steel wire, so that the sealing effect of the entire pipe plug on the nozzle position is improved. stronger.

Description

A tightening nozzle plug

technical field

The invention relates to a sealing device, in particular to a tightening type nozzle plug.

Background technique

With the rapid development of the current automobile industry, there are more and more varieties of various pipe parts. During their production and processing, hydraulic tests or air tightness tests are often required, such as air intake pipes, air outlet pipes, and water inlet pipes. , drainage pipes, etc., and the nozzles need to be sealed when performing these tests. In the past, the sealing devices were fixed, that is, the specific position of each nozzle on the product in the entire fixture was calculated in advance, and then the sealing mechanism was designed at the corresponding position. However, due to the diversity of pipe parts at present, some products have complex shapes, and there are space angles between the nozzles, which makes the fixture design difficult.

There are certain difficulties in both production and production. Once the production error is slightly larger, it will affect the sealing performance of the product or even make it impossible to seal. For those products with larger shapes, the entire fixture needs to be relatively large, and its manufacturing cost is relatively high.

The nozzle plug is a protective device, which is mainly used to insert into the nozzle of the input main pipe of the air conditioner, so as to prevent rainwater and dust from entering the main input pipe when the indoor unit of the air conditioner is not connected to the outdoor unit, so as to protect the input. The role of the main pipe; and when the indoor unit and the outdoor unit are connected through the input main pipe, the nozzle plug will lose its function. There are two main ways of connecting the existing nozzle plug and the input main pipe: one is that the nozzle plug is a sleeve structure with one end sealed and the other end open, and the inner circumferential wall of the sleeve is provided with internal threads Corresponding external threads are provided on the outer peripheral wall of the nozzle section of the input main pipe. When connecting, the nozzle plug is screwed on the nozzle section of the input main pipe; the other is that the nozzle plug is a solid cylindrical structure, And there are external threads on it, and corresponding internal threads are provided on the inner circumferential wall of the nozzle section of the input main pipe. When connecting, the nozzle plug is screwed into the nozzle section of the input main pipe. Obviously, the nozzle plugs of the above two structures are connected to the input main pipe through threads, so assembly and disassembly need to be tightened with force, which is time-consuming and laborious, and the mold structure of the threads is relatively complicated and expensive.

For example, the patent No. 201120392320.8 is a nozzle sealing plug, especially a pipe plug used for sealing the nozzle of a steel pipe. The outer surface of the main body of the sealing plug is provided with a groove along the radial direction, and a sealing ring which is in close contact with the inner wall of the nozzle is arranged in the groove. The pipe plug of the present invention is mainly used for sealing the nozzles of tubular objects, such as steel pipes and artillery barrels, to protect the inner cavity from rust, dust, moisture and water, thereby ensuring the internal quality of the tubular objects and prolonging the service life. The pipe plug has a simple structure, is easy to use, has a good sealing effect, and can be used repeatedly. This method mainly improves the tightness by changing the structure of the sealing device, but only by adding grooves and other structures cannot completely achieve sealing. Effect.

Another example is a nozzle sealing device with application number 201210298283.3, which includes a U-shaped clamp, a compression screw, and a sealing block; the lower part of the U-shaped clamp is provided with a U-shaped groove for clamping the product pipe wall, and the upper part of the U-shaped clamp is There is a matching hole for installing the compression screw; the lower end of the compression screw is connected with the sealing block used for sealing the nozzle of the product. The lower part of the sealing block is provided with a sealing rubber installation groove; the sealing rubber is installed in the sealing rubber installation groove. It also includes a threaded sheath installed in the matching hole for assembling the compression screw; the inner hole of the threaded sheath is provided with screw assembly threads, and there will always be errors in the contact of the thread surface, and these errors are exactly the problem of repeated air leakage , the device is not suitable for multiple adjustments. Generally, it has to be used until it is scrapped after one installation, and it is difficult to adjust and re-tighten the seal later.

Contents of the invention

The technical problem to be solved in the present invention is to provide a tightening nozzle plug with a controllable sealing degree and fastening at any time in view of the above-mentioned deficiencies in the prior art.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A tightening type nozzle plug, including a tube plug, the tube plug includes a cover body and an outer wrapping surface and an inner wrapping surface wrapping the pipe wall, a lifting handle is arranged on the cover body, and one end of the pulling handle is connected to the The edge of the cover body is hinged vertically, and there is a rotating tightening device on the lifting handle; there is a steel wire channel surrounding the pipe body for passing through the steel wire on the outer wrapping surface; the rotating tightening device includes a rotating connection connected to the lifting handle The base is provided with a fixed step surface and a movable step surface for clamping the steel wire.

As a further preferred solution, a threaded hole is provided on the movable step surface, a screw rod is set through the threaded hole, and one end of the screw rod is rotatably connected to the fixed step surface along the radial direction, and the movable step surface is also provided on the base. Active slide rails.

As a further preferred solution, at least one lifting handle is provided on the pipe plug, and the number of the steel wire passages corresponds to the number of lifting handles.

As a further preferred solution, a turning handle is provided on the end of the screw rod away from the fixed step surface.

As a further preferred solution, an adsorption ring layer is provided on the side of the outer wrapping surface facing the pipe wall, and the adsorption ring layer includes an upper skirt edge and a lower skirt edge respectively extending to both ends of the pipeline; the steel wire channel It is located at the outer surface of the outer wrapping surface at the same position as the adsorption ring layer.

As a further preferred solution, the rotating tightening device is located in the middle of the lifting handle.

Beneficial effect

Compared with the prior art, the tightening nozzle plug of the present invention not only uses the outer wrapping surface and the inner wrapping surface to double tightly fit on the pipe wall, but also uses the steel wire to fasten the pipe wall, and uses the pull handle to rotate Tighten and pull the steel wire to tighten the steel wire, further strengthen the tightness between the outer wrapping surface and the pipe, and finally wrap the steel wire to fix it, so that the sealing effect of the entire pipe plug on the nozzle position is stronger, and it has the following advantages:

1. The rotating tightening device is located in the middle of the lifting handle. The lifting handle adopts the principle of leverage, which can generate greater pulling force when pulling easily, so that the steel wire can tighten the pipe more strongly.

2. Under the function of the adsorption ring layer with the tightening of the steel wire, the original sealing effect of the adsorption ring layer will be enlarged, and the functions of each component will be increased.

3. The steel wire is clamped between the fixed step surface and the movable step surface, and then rotated to tighten the steel wire, acting on the steel wire in two directions to completely tighten the steel wire.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of pipe plug structure;

Fig. 3 is a structural schematic diagram of a rotary tightening device;

Among them, 1-cover body, 2-outer wrapping surface, 3-inner wrapping surface, 4-lift handle, 5-steel wire channel, 6-base, 7-fixed step surface, 8-movable step surface, 9-screw, 10-turn the handle, 11-the upper skirt edge, 12-the lower skirt edge.

detailed description

The preferred technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in the figure, a tightening nozzle plug of the present invention includes a tube plug, and the tube plug includes a cover body 1 and an outer wrapping surface 2 and an inner wrapping surface 3 wrapping the pipe wall;

The cover body 1 is provided with a lifting handle 4, one end of the lifting handle 4 is vertically hinged to the edge of the cover body 1, and the lifting handle 4 is provided with a rotating tightening device, generally the upper end is hinged, and the lower end is held for lifting. Further, the rotating tightening device is located in the middle of the lifting handle 4, and the principle of leverage is used when lifting, so it is only necessary to apply force easily, and it is more convenient to control the strength;

The outer wrapping surface 2 has a steel wire channel 5 surrounding the pipe body for penetrating steel wires. The side of the steel wire channel that fits the outer wrapping surface 2 is generally made of soft material, which is convenient for fastening. The outer surface is made of hard material, which is convenient. wire penetration;

The rotary tightening device includes a base 6 that is rotatably connected to the lifting handle 4. The base 6 is provided with a fixed step surface 7 and a movable step surface 8 for clamping steel wires. The position of the rotary tightening device is generally around The middle part of the two ends of the steel wire of the pipeline avoids the difference in torque at both ends of the steel wire when the rotation is tight.

The movable step surface 8 is provided with a threaded hole, and a screw 9 is set through the threaded hole. One end of the screw rod 9 is connected to the fixed step surface 7 in a radial direction, and the base 6 is also provided with a movable step surface 8. The above-mentioned sliding guide rail is a simple clamping form, which can be changed to other more convenient clamping forms according to the situation.

The pipe plug is provided with at least two lifting handles 4, and the number of the steel wire channels 5 corresponds to the number of lifting handles 4. Generally, two lifting handles 4 are used, and the two lifting handles 4 can be arranged opposite to each other. , Fasten the pipe from two opposite directions, or use a four-point arrangement, which has a stronger sealing effect.

The end of the screw 9 away from the fixed step surface 7 is provided with a rotating handle 10, the rotating handle 10 is a simple force carrier for clamping, and may also be a nut structure or the like.

The side of the outer wrapping surface 2 facing the pipe wall is provided with an adsorption ring layer, and the adsorption ring layer includes an upper skirt edge 11 and a lower skirt edge 12 respectively extending to both ends of the pipe; At the outer surface of the outer wrapping surface 2 at the same position of the circle layer.

The above is only a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in this application Replacement should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (6)

1. one kind tightens up formula mouth of pipe plug, including pipe close, the pipe close includes lid（1）And the outer wrapping face of parcel tube wall（2） With interior parcel face（3）, it is characterised in that：The lid（1）Upper setting lift-pull handle（4）, the lift-pull handle（4）One end and lid Body（1）Edge is vertically hinged, lift-pull handle（4）It is upper that there is rotary tightening device；The outer wrapping face（2）Above have and surround body For penetrating the steel wire passage of steel wire（5）；The rotary tightening device includes being rotatably connected on lift-pull handle（4）On base （6）, the base（6）On be provided with fixation step surface for clamping steel wire（7）With movable step surface（8）.

2. one kind according to claim 1 tightens up formula mouth of pipe plug, it is characterised in that：The movable step surface（8）Upper setting There is screwed hole, screw rod is set through screwed hole（9）, screw rod（9）One end be radially rotatably connected on fixed step surface（7）On, The base（6）On be additionally provided with for movable step surface（8）The rail plate of activity.

3. one kind according to claim 2 tightens up formula mouth of pipe plug, it is characterised in that：It is provided with the pipe close at least one Lift-pull handle（4）, the steel wire passage（5）Quantity and lift-pull handle（4）Quantity is corresponding.

4. one kind according to claim 2 tightens up formula mouth of pipe plug, it is characterised in that：The screw rod（9）Away from fixed step Face（7）One end on be provided with swing handle（10）.

5. one kind according to claim 1 tightens up formula mouth of pipe plug, it is characterised in that：The outer wrapping face（2）Towards tube wall One side on be provided with absorption ring layer, the absorption ring layer includes overskirt band edge（11）With skirt band edge（12）；The steel wire leads to Road（5）Positioned at the outer wrapping face with adsorbing ring layer same position（2）Outer surface.

6. one kind according to claim 1 tightens up formula mouth of pipe plug, it is characterised in that：The rotary tightening device is positioned at lifting Handle（4）Middle part.