CN217761683U - Base of exempting from to punch - Google Patents

Abstract

A punching-free base is composed of a disc opening, a body, a piston, a nut, a flexible sealing ring, a flexible sealing gasket and uncured sealant; the disc opening adsorption surface is provided with a plurality of deep grooves for filling the non-solidified sealant, the disc opening non-adsorption surface is provided with a buckling groove for embedding the body, and the middle of the disc opening is provided with a hollow part communicated with the body cylinder; the outer surface of one end of the body is provided with a flange which can be plugged into a non-adsorption surface buckling groove of the disc opening, the outer surface of the other end of the body is provided with an invagination type hole for placing a nut, the body is internally provided with an air cylinder, two ends of the air cylinder are respectively opened, the opening size of the flange end is the same as the cross section size of the air cylinder, namely, the flange end is a full opening, and the opening size of the non-flange end is smaller than the cross section size of the air cylinder but larger than the cross section size of a middle screw rod of the piston; the outer surface of the piston is provided with a plurality of annular grooves for embedding the flexible sealing rings, an inner screw rod and an outer screw rod are arranged in the middle of one end of the piston, and a deep groove for the flexible sealing gasket to be plugged in is formed around the inner screw rod. By adopting the components, the vacuum self-adsorption and the lasting bearing capacity of the punching-free base can be realized.

Description

Base of exempting from to punch

Technical Field

The utility model relates to a exempt from base that punches, especially can independently form vacuum suction and bearing capacity and last the multipurpose base that keeps and need not to use powerful glue.

Background

At present, known multipurpose bases capable of forming and maintaining load-bearing capacity autonomously without the use of a strong glue do not exist. In daily production and life, facility equipment can be fixed at a certain position in two ways, namely, the facility equipment is fixed by punching holes and using expansion bolts, and the facility equipment is fixed by coating strong glue; for the drilling and fixing mode, the defects are that the fixed surface such as the ground, the wall surface, the top surface and the like can be damaged, and if a hole with enough depth cannot be drilled due to the hard object such as a steel bar during drilling, the position has to be changed to drill again, so that the fixed surface is damaged for many times and the fixing position of the facility equipment is changed; for the fixing mode of coating the strong glue, the defects are that the bearing capacity is limited, the requirements on the flatness of the fixed surface, the surrounding environment and the like are high, and the application range of the fixing mode is narrow; in addition, both the drilling fixing and the glue-coating fixing have a common defect that once the facility equipment is installed in place, the installation cannot be shifted again without damaging the original installation surface and environment.

Disclosure of Invention

In order to overcome the not enough of current fixed mode, the utility model provides an exempt from base that punches, this base can not only independently fix in definite position and need not to paint powerful glue, just so can realize neither destroying by fixed surface can be effective again, convenient installation external facilities equipment and can shift the purpose of installation many times.

The utility model provides a technical scheme that its technical problem adopted is:

the punching-free base is composed of a disc opening, a body, a piston, a nut, a flexible sealing ring, a flexible sealing gasket and uncured sealant; the disc opening is made of flexible sealing materials, a plurality of deep grooves for filling non-cured sealant are formed in the adsorption surface of the disc opening, a buckling groove for embedding the body is formed in the non-adsorption surface of the disc opening, and the middle of the disc opening is hollow; the body is made of light hard materials, the outer surface of one end of the body is provided with a flange which can be embedded into a buckle groove of a non-adsorption surface of a disc opening, a cylinder which can be used for a piston to slide in a reciprocating mode is arranged in the body, two ends of the cylinder are opened, the opening size of the end of the flange is the same as the cross section size of the inner wall of the cylinder, the opening size of the other end of the flange is smaller than the cross section size of the inner wall of the cylinder and can be used for a piston screw to pass through, the non-flange end of the body cylinder is sunken into the cylinder around the local area of the opening of the cylinder so as to form a ring groove structure on the inner side of the cylinder, and a hole which can be used for a nut to be placed into is formed on the surface of the body outside the cylinder; the piston is made of light hard materials, the cross section shape of the piston is the same as that of the body cylinder, the cross section size of the piston is smaller than that of the body cylinder, a plurality of annular grooves for embedding the flexible sealing rings are arranged on the outer surface of the piston, the cross section shapes of the annular grooves are consistent with that of the flexible sealing rings, the cross section size of the annular grooves is smaller than that of the flexible sealing rings, namely, the flexible sealing rings are embedded into the annular grooves and then protrude out of the outer surface of the piston, the piston at the position of the flexible sealing rings comprises the flexible sealing rings, the cross section size of the flexible sealing rings is larger than that of the body cylinder, an internal thread rod and an external thread rod are arranged in the middle of one end of the piston, the external thread rod can be matched with a nut to achieve the purpose of pulling the piston to slide in the cylinder and can be used for fixing external equipment, the internal thread rod is used for fixing the external equipment, and a circle of deep groove is arranged between the outer surface of the end of the piston screw and the middle screw; the nut is a standard part, the specification of the nut is matched with the middle screw rod of the piston, the shape and the size of the nut are matched with the sunken hole at the non-flange end of the body, namely, the nut can completely sink into the sunken hole at the non-flange end of the body and can be conveniently screwed; the flexible sealing ring is made of elastic sealing materials, has a smooth surface, and is matched with the annular groove on the outer surface of the piston in shape and size; the flexible sealing gasket is made of elastic sealing material, has a smooth surface, and has the shape and the size matched with a deep groove at the end of the piston screw rod surrounding the middle screw rod; the uncured sealant is a flowing filler which is independently vacuum-packaged and cured at room temperature. Assembling the punching-free base by using the components according to the following steps: after a layer of sealant is coated in each ring groove on the outer surface of the piston, the flexible sealing rings are respectively embedded into the corresponding ring grooves on the outer surface of the piston, the flexible sealing rings are sleeved on the bottom of the middle screw rod of the piston, the flexible sealing rings and the flexible sealing rings are placed into the cylinder of the body together, and the middle screw rod of the piston passes through a hole reserved at one end of the cylinder and extends out of the cylinder; coating a layer of sealant in a buckling groove on the non-adsorption surface of the disc opening, embedding the body into the buckling groove and enabling the cylinder opening on the flange side of the body to correspond to the hollow position in the middle of the disc opening; pushing a screw rod in the middle of the piston to enable the piston to slide to the disc opening until the bottom plane of the piston is flush with the plane of the adsorption surface of the disc opening, and screwing a nut into the screw rod in the middle of the piston until the nut is in contact with the outer surface of the body; independently vacuum-packaging the uncured sealant; so far, the assembly of the punching-free base is completed, and the use function is achieved.

The mechanical structure and the working principle of the punching-free base are further explained in the following with reference to the attached drawings 1, 2, 3, 6, 9, 12, 13, 14 and 15 respectively:

mechanical structure

The punching-free base is composed of a disc opening 1, a body 2, a piston 3, a nut 4, a flexible sealing ring 5, a flexible sealing gasket 6 and uncured sealant 7; after sealant is coated in the annular groove on the outer surface of the piston 3, the flexible sealing rings 5 are respectively embedded in the grooves, the flexible sealing gasket 6 is sleeved at the bottom of the screw rod in the middle of the piston 3, and then the piston 3 is plugged into the cylinder of the body 2, so that the screw rod in the middle of the piston 3 passes through the reserved hole at the non-flange end of the cylinder and extends out of the cylinder; coating sealant in a buckling groove on the non-adsorption surface of the disc opening 1 and then embedding the body 2; pushing a screw rod in the middle of the piston 3 to enable the piston 3 to slide towards the disc opening 1 until the bottom plane of the piston 3 is flush with the plane of the adsorption surface of the disc opening 1, and then screwing the nut 4 into the screw rod in the middle of the piston 3 until the nut 4 is in contact with the outer surface of the body 2; the uncured sealant 7 is independently vacuum-packed and kept in an uncured state so as to be smoothly extruded and filled when the punching-free base is used; the punching-free base is assembled and has a use function.

Second, the working principle

After the punching-free base is assembled, when the punching-free base needs to be used, only a proper amount of uncured sealant 7 needs to be extruded to fill the deep groove of the adsorption surface of the disc port 1 and slightly exceed the adsorption surface of the disc port 1, then the adsorption surface of the disc port 1 is tightly attached to a fixed plane, the screwing nut 4 drives the piston 3 to slide towards the direction far away from the disc port 1, the hollow part in the middle of the disc port 1 of the punching-free base is gradually changed into a hollow part by the piston 3, namely, a vacuum space is gradually formed, so that corresponding adsorption force is generated, and along with the continuous screwing of the nut 4 and the continuous sliding of the piston 3 towards the direction far away from the disc port 1, the vacuum space in the middle of the disc port 1 and the cylinder space of the body 2 are gradually increased; in this way, the process that the piston 3 gradually slides towards the direction far away from the disk port 1 and the vacuum space in the cylinder is continuously increased is the process of continuously exhausting air from the hollow space in the middle of the non-punching base disk port 1, so that the air pressure in the hollow space in the middle of the non-punching base disk port 1 is continuously reduced, and the vacuum degree of the working space is continuously increased; when the top of the piston 3 contacts with the inner wall of the cylinder of the body 2, the nut 4 cannot continue to be screwed, namely the piston 3 stops sliding towards the direction away from the disc port 1, so that the space in the cylinder of the body 2 stops increasing, namely the space stops pumping air from the hollow space in the middle of the disc port 1 of the punching-free base, the hollow space in the middle of the disc port 1 of the punching-free base reaches stable vacuum degree, and the punching-free base has corresponding suction and bearing capacity. In the use process of the punching-free base, two places are usually possible to leak to cause vacuum failure, and the punching-free base loses self-adsorption capacity, namely a gap between an adsorption surface of a disc opening 1 and an external adsorbed surface, and a gap between a cylinder wall and the surface of a piston; the punching-free base of the utility model effectively solves the possible leakage problem in the two aspects through the specific structural design; the filling of the uncured sealant plugs the possible micropores between the adsorption surface of the disc opening 1 and the external adsorbed surface, and the cooperation of a plurality of flexible sealing rings and flexible sealing gaskets plugs the tiny gaps between the cylinder wall and the piston surface, so that the vacuum degree of the working space of the adsorption surface of the disc opening, which is necessary for the punching-free base to play the using function, is easily obtained and can be maintained for a long time; due to the design of the plurality of deep grooves on the adsorption surface of the disc opening 1, uncured sealant cannot shift after being cured at room temperature, and the effectiveness and stability of gap sealing between the adsorption surface of the disc opening 1 and an external adsorbed surface are greatly improved; the sectional shape of the piston 3 is the same as that of the cylinder of the body 2, the sectional dimension of the piston 3 is smaller than that of the cylinder of the body 2, a plurality of annular grooves for embedding the flexible sealing rings 5 are distributed on the surface of the piston 3, the sectional dimension of the piston containing the flexible sealing rings at the flexible sealing rings after the flexible sealing rings 5 are embedded into the annular grooves on the surface of the piston 3 is larger than that of the cylinder of the body 2, the structural designs are integrated, so that the surface of the piston 3 is not in rigid contact with the inner wall of the cylinder of the body 2 when the piston 3 and the flexible sealing rings 5 are plugged into the cylinder of the body 2, but the flexible sealing rings 5 are clamped between the piston 3 and the cylinder of the body 2, the hard friction between the piston and the cylinder is eliminated, the contact area between the sealing rings and the inner wall of the cylinder is reduced, the multiple sealing of the gap between the inner wall of the cylinder and the surface of the piston is realized, the sliding resistance of the piston 3 is greatly reduced, and the effectiveness and the stability of the gap sealing between the inner wall of the cylinder and the surface of the piston are greatly improved; the design that the flexible sealing gasket 6 is sleeved at the bottom of the middle screw rod of the piston 3 further seals a gap between the inner wall of the cylinder and the surface of the piston, because when the piston 3 is pulled by the nut 4 to slide to the top end of the cylinder, the part of the sunken hole at the non-flange end of the cylinder of the body 2 sinks into the deep groove of the piston 3 surrounding the middle screw rod, namely, the flexible sealing gasket 6 at the bottom of the middle screw rod of the piston 3 is extruded by the bottom surface of the deep groove of the piston 3 surrounding the middle screw rod and the inner wall of the cylinder at the sunken hole at the non-flange end of the cylinder of the body 2, so that the gap between the piston 3 and the inner wall of the cylinder is filled, namely, a possible air leakage passage between the cylinder and the outside is completely sealed; the deep groove of the screw rod side of the piston 3 surrounding the middle screw rod corresponds to the hole position of the non-flange end of the body 2 recessed into the cylinder in size matching, and the nut 4 does not protrude out of the outer surface of the body 2 under the condition of not shortening the stroke of the piston 3 in a mutually matching mode, so that the stability and convenience of fixing various facility equipment on the punching-free base are enhanced. Further, the utility model discloses the hollow work space that is promptly in the middle of the base dish mouth of exempting from to punch 1 adsorption surface adopts the low thickness design of large tracts of land to make the air capacity that needs take out promptly to fall to minimumly under the same adsorption area condition, then designs into the maximum value to body cylinder volume simultaneously under service environment allows the condition, improves cylinder volume and dish mouth adsorption surface work space volumetric ratio and improves the vacuum of dish mouth adsorption surface work space promptly as far as possible to obtain bigger suction.

The utility model has the advantages that: under the condition of not arranging external equipment, the self-suction vacuum function of the punching-free base is realized through the air cylinder piston mechanism, namely the punching-free base can be fixed at a determined position without punching and positioning; under the condition of not increasing external sealing measures, the effective formation and continuous maintenance of the vacuum degree and suction force of the disc opening working space are realized through the specific structural design of the punching-free base without failure; the punching-free base is provided with a plurality of threaded holes and through holes with different specifications and different directions, so that the installation and fixation of various different facility equipment are facilitated; the overall appearance, the material, the shape, the size and the like of the punching-free base can be determined according to the application, the use environment, the required bearing capacity and the like; the punching-free base is simple in structure, wide in application range, low in cost and easy to realize.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of a whole machine of a first embodiment of a punching-free base.

Fig. 2 is a schematic view of the assembly of the components of the first embodiment of the non-perforated base.

Fig. 3 is a perspective view of a disc opening of the first embodiment of the non-perforated base.

FIG. 4 is a top view of a well of a first embodiment of a non-perforated base.

FIG. 5 isbase:Sub>A cross-sectional view of the orifice A-A of the first embodiment of the non-perforated base.

Fig. 6 is a perspective view of the body of the first embodiment of the base without holes.

FIG. 7 is a top view of the body of the first embodiment of the non-perforated base.

FIG. 8 is a cross-sectional view of the body B-B of the first embodiment of the non-perforated base.

Fig. 9 is a perspective view of a piston of the first embodiment of the base without a hole.

FIG. 10 is a top view of a piston of a first embodiment of a non-perforated base.

FIG. 11 is a side view of a piston of the first embodiment of the non-piercing base.

Fig. 12 is a perspective view of a nut of the first embodiment of the base without holes.

Fig. 13 is a perspective view of the flexible sealing ring of the first embodiment of the base without holes.

Fig. 14 is a perspective view of a flexible gasket of the first embodiment of the non-perforated base.

Fig. 15 is a schematic perspective view of the uncured sealant of the first embodiment of the perforation-free base after curing.

In the figure, 1 is a disc opening, 2 is a body, 3 is a piston, 4 is a nut, 5 is a flexible sealing ring, 6 is a flexible sealing gasket, and 7 is uncured sealing gum.

Detailed Description

In the whole machine of the first embodiment of the punching-free base shown in fig. 1 and 2, after a sealant is coated in an annular groove on the outer surface of a piston 3, flexible sealing rings 5 are respectively embedded in the grooves, a flexible sealing gasket 6 is sleeved at the bottom of a screw rod in the middle of the piston 3, and then the piston 3 is plugged into a cylinder of a body 2, so that the screw rod in the middle of the piston 3 passes through a reserved hole at the non-flange end of the cylinder and extends out of the cylinder; coating sealant in a buckling groove on the non-adsorption surface of the disc opening 1 and then embedding the body 2; pushing a screw rod in the middle of the piston 3 to enable the piston 3 to slide towards the disc opening 1 until the bottom plane of the piston 3 is flush with the plane of the adsorption surface of the disc opening 1, and then screwing the nut 4 into the screw rod in the middle of the piston 3 until the nut 4 is in contact with the outer surface of the body 2; the uncured sealant 7 is independently vacuum-packed and kept in an uncured state so as to be smoothly extruded and filled when the punching-free base is used; a plurality of threaded holes and through holes with different specifications and different directions are distributed on the periphery of the body 2, so that the applicability of the punching-free base is enhanced.

In the plate opening 1 of the first embodiment of the non-perforated base shown in fig. 3, 4 and 5, a plurality of deep grooves are arranged on the adsorption surface of the plate opening 1 for filling the uncured sealant 7, so that the uncured sealant 7 cannot be displaced after being cured at room temperature, and the effectiveness and stability of gap sealing between the adsorption surface of the plate opening 1 and an external adsorbed plane are ensured.

In the body 2 of the non-perforated base of the first embodiment shown in fig. 6, 7 and 8, a plurality of circles of flanges are arranged on the outer surface of one end of the body 2, which is in contact with the disk port 1, and the shapes, the sizes and the like of the flanges are matched with the reserved buckling grooves on the non-adsorption surface of the disk port 1, so that the body 2 can form a mutual meshing structure with the disk port 1 after being embedded into the disk port 1, and the body 2 is ensured not to be separated from the disk port 1; the opening size of the cylinder at the flange side of the body 2 is consistent with the hollow size in the middle of the disc opening 1, so that the piston 3 can fill the hollow space in the middle of the disc opening 1 when the punching-free base is in a standby state; the size of the opening of the cylinder at the non-flange end of the body 2 is smaller than that of the opening at the flange end and can be penetrated by a middle screw rod of the piston 3, so that the piston 3 cannot slip out of the cylinder of the body 2 when being pulled away from the disc opening 1; the non-flange end of the body 2 is provided with a hole recessed into the cylinder, and the nut 4 does not protrude out of the outer surface of the body 2 under the condition that the stroke of the piston 3 is not shortened by matching the deep groove of the piston 3 and the screw rod side surrounding the middle screw rod, so that the stability and convenience of fixing various facility equipment on a punching-free base are improved.

In the piston 3 of the first embodiment of the base without perforation shown in fig. 9, 10 and 11, a plurality of ring grooves capable of being embedded with the flexible sealing ring 5 are arranged on the surface of the piston 3, and when the piston 3 is plugged into the cylinder of the body 2 together with the embedded flexible sealing ring 5, a gap between the cylinder wall of the body 2 of the base without perforation and the surface of the piston 3 forms multiple sealing; a ring of annular grooves surrounding the screw rod are arranged between the outer surface of the piston at one side of the screw rod in the middle of the piston 3 and the screw rod, the weight of the piston can be reduced, and the nut 4 is not protruded out of the surface of the body 2 due to the matching of the piston and the non-flange side recess of the surface of the body 2 into the hole of the cylinder, so that the outer surface of the body 2 is kept flat and free of protrusions under the condition that the stroke of the piston 3 is not shortened, and various facility equipment can be conveniently and stably fixed on a punching-free base.

The nut 4 of the first embodiment of the base without holes shown in fig. 12 is a universal standard component, the specification of which is matched with the middle screw of the piston 3, and the shape and the size of which are matched with the sunken hole at the non-flange end of the body 2, namely, the nut 4 can be completely sunken into the sunken hole at the non-flange end of the body 2 and can be conveniently screwed;

the flexible sealing ring 5 of the first embodiment of the base without punching shown in fig. 13 is made of elastic sealing material, has smooth surface, and can be conveniently embedded into the annular groove on the outer surface of the piston 3 and protruded out of the outer surface of the piston by matching the shape and the size of the flexible sealing ring with the annular groove on the outer surface of the piston, so that multiple sealing can be formed between the inner wall of the cylinder and the outer surface of the piston when the flexible sealing ring and the piston 3 are plugged into the cylinder;

the flexible sealing gasket 6 of the first embodiment of the punching-free base shown in fig. 14 is made of elastic sealing material, has a smooth surface, and is matched with the deep groove of the screw end of the piston 3 surrounding the middle screw in shape and size, namely the flexible sealing gasket can be sleeved in the middle screw of the piston 3 and slides to the bottom of the deep groove, when the piston 3 is pulled to reach the top of the cylinder, the flexible sealing gasket 6 clamped between the top of the piston and the inner wall of the cylinder is squeezed to fill the fine gap between the top of the piston and the inner wall of the cylinder, so that the cylinder is isolated from the outside, air tightness is ensured, and the vacuum degree in the cylinder is continuously maintained;

the first embodiment of the non-perforated base shown in fig. 15 is a single package of uncured sealant 7 in a dripping form which cures in air after being squeezed out and fills the deep channels in the suction side of the spout 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but is intended to cover various modifications, combinations, and alternatives, which will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a exempt from base that punches, characterized by: the sealing device is composed of a disc opening, a body, a piston, a nut, a flexible sealing ring, a flexible sealing gasket and uncured sealing gum; the disc opening is made of flexible sealing materials, a plurality of deep grooves for filling non-cured sealant are formed in the adsorption surface of the disc opening, a buckling groove for embedding the body is formed in the non-adsorption surface of the disc opening, and the middle of the disc opening is hollow; the body is made of light hard materials, the outer surface of one end of the body is provided with a flange which can be embedded into a buckle groove of a non-adsorption surface of a disc opening, a cylinder which can be used for a piston to slide in a reciprocating mode is arranged in the body, two ends of the cylinder are opened, the opening size of the end of the flange is the same as the cross section size of the inner wall of the cylinder, the opening size of the other end of the flange is smaller than the cross section size of the inner wall of the cylinder and can be used for a piston screw to pass through, the non-flange end of the body cylinder is sunken into the cylinder around the local area of the opening of the cylinder so as to form a ring groove structure on the inner side of the cylinder, and a hole which can be used for a nut to be placed into is formed on the surface of the body outside the cylinder; the piston is made of light hard materials, the cross section of the piston is the same as that of the body cylinder, the cross section of the piston is smaller than that of the body cylinder, a plurality of annular grooves for the flexible sealing rings to be embedded are formed in the outer surface of the piston, the cross section of each annular groove is consistent with that of each flexible sealing ring, the cross section of each annular groove is smaller than that of each flexible sealing ring, namely, the flexible sealing rings are embedded into the annular grooves and then protrude out of the outer surface of the piston, the piston at the positions of the flexible sealing rings comprises the flexible sealing rings, the cross section of each flexible sealing ring is larger than that of the body cylinder, an inner thread rod and an outer thread rod are arranged in the middle of one end of the piston, the outer thread rods can be matched with nuts to achieve the purpose of pulling the piston to slide in the cylinder and can be fixed by external facility equipment, the inner thread rods are used for fixing the external facility equipment, and a circle of deep grooves are arranged between the outer surface of the end of the piston screw rod and the middle screw rod; the nut is a standard part, the specification of the nut is matched with the middle screw rod of the piston, the shape and the size of the nut are matched with the sunken hole at the non-flange end of the body, namely, the nut can completely sink into the sunken hole at the non-flange end of the body and can be conveniently screwed; the flexible sealing ring is made of elastic sealing material, has a smooth surface, and the shape and the size of the flexible sealing ring are matched with the ring groove on the outer surface of the piston; the flexible sealing gasket is made of elastic sealing materials, has a smooth surface, and has the shape and the size matched with a deep groove at the end of the piston screw rod surrounding the middle screw rod; the uncured sealant is a flowing filler which is independently vacuum-packaged and cured at room temperature.

2. The non-perforating base of claim 1 wherein: under the condition of not being equipped with external equipment, the self-suction vacuum function is realized through the cylinder piston mechanism; the number of the plurality of deep grooves formed in the disc opening adsorption surface can be adjusted at will and is larger than one, and the clamping grooves formed in the disc opening non-adsorption surface are matched with the shape and the size of the flange of the body and are meshed with each other tightly.

3. The non-perforating base of claim 1 wherein: the opening size of the cylinder on the flange side of the body is consistent with the middle hollow size of the disc opening, so that the piston can be fully filled in the middle hollow space of the disc opening when the punching-free base is in a standby state.

4. The punch-free base of claim 1, wherein: the bottom of the middle screw rod of the piston is sleeved with the flexible sealing gasket, when the piston is pulled by the nut to slide to the top end of the cylinder, the sunken hole part at the non-flange end of the cylinder body sinks into the deep groove of the piston surrounding the middle screw rod, namely the flexible sealing gasket at the bottom of the middle screw rod of the piston is extruded by the piston surrounding the bottom surface of the deep groove of the middle screw rod and the inner wall of the cylinder at the sunken hole part at the non-flange end of the cylinder body, so that a gap between the piston and the inner wall of the cylinder is filled, and a possible air leakage passage between the cylinder and the outside is thoroughly blocked.

5. The non-perforating base of claim 1 wherein: the deep groove of the piston screw side surrounding the middle screw corresponds to the hole of the body with the non-flange end recessed into the cylinder in position and size, and the deep groove and the hole are matched with each other to realize that the nut does not protrude out of the outer surface of the body under the condition of not shortening the piston stroke.

6. The punch-free base of claim 1, wherein: the uncured sealant is singly packaged and flows, and can be cured in the air after being extruded out and filling the deep groove of the absorbing surface of the disc opening.

7. The punch-free base of claim 1, wherein: a plurality of screw holes and through holes with different specifications and different directions are distributed on the periphery of the body.

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