CN221323265U - Watertight detection clamp for plugging complex structure shell - Google Patents

Abstract

The utility model provides a watertight detection clamp for plugging a complex-structure shell, relates to a watertight detection clamp for shell parts, and is used for solving the technical problems that the existing shell parts with complex inner cavities, complex air passages, multiple exposed holes and special holes are difficult to plug and detect in the watertight detection process. The expansion sleeve of the conical plug sealing assembly is attached to the hole wall and is placed at the bottom of a special hole. The screw passes through the pressing piece, the pressing piece applies downward pressing force to the conical plug, so that the cone of the conical plug chassis is extruded into the expansion sleeve at the bottom of the special hole, the sealing of the special hole is realized at the bottom, and the problem that the arc surface of the hole wall of the special hole is incomplete in disconnection is solved. The guide piece below the pressing piece is fixed on the shell through the guide ring on the side face of the guide piece, and the problem that a special hole lacks an effective pressing blocking surface is solved.

Description

Watertight detection clamp for plugging complex structure shell

Technical Field

The utility model relates to a watertight detection clamp for shell parts, in particular to a watertight detection clamp for plugging a complex-structure shell.

Background

The tightness of the shell parts has important influence on the performance and quality of products, so the tightness detection link of the shell parts is particularly important. For parts of shell parts with complex structures, the inner cavity structure is complex, the exposed holes are more, the air passages are branched, and the common clamp lacks an effective fastening structure when clamping is performed in a tightness detection link, so that interference is very easy to cause. The shell part with a complex part structure is also provided with a special hole, the end face of the hole is lack of a sealing surface which is effectively pressed, and the condition that the arc surface of the hole wall is broken incompletely exists, so that the traditional end face seal and the radial seal cannot effectively seal the structure. The watertight detection of the shell parts has the problems of difficult plugging and difficult detection, so the design of the watertight detection structure suitable for the shell parts with complex inner cavity structures is urgent.

Chinese patent CN109630679a discloses a novel multifunctional combined sealing jig comprising: the end face sealing assembly, the cavity sealing assembly and the valve side face sealing assembly; the end face sealing assembly is arranged on the large end face and the small end face of the valve, the machine body position of the valve is fixed through clamping the large end face and the small end face of the valve, a sealing gasket is arranged between the end face sealing assembly and the large end face and the small end face of the valve, and the large end face and the small end face of the valve are sealed after the end face sealing assembly on the large end face and the small end face of the valve is compressed; the valve side surface sealing assembly is used for realizing side surface sealing of the valve shell; the cavity sealing assembly can seal the forced cavity of the valve and can also seal the vent hole on the large end face of the valve. The defects are that: the sealing clamp cannot be suitable for sealing holes for effectively pressing the plugging surface, and has poor sealing effect on special holes with broken hole wall arc surfaces.

Disclosure of utility model

The utility model provides a watertight detection clamp for plugging a complex-structure shell, which is used for solving the technical problems that the existing shell parts with complex inner cavities, complex air passages, multiple exposed holes and special holes are difficult to plug and detect in the watertight detection process.

The utility model provides a shutoff complex structure casing's watertight detection anchor clamps which characterized in that: comprises a conical plug sealing assembly;

The conical plug sealing assembly comprises an expansion sleeve, a guide piece, a conical plug and a pressing piece, wherein the inner wall of the expansion sleeve is a conical surface, and the outer wall of the expansion sleeve is a cylindrical surface; the expansion sleeve is used for being placed at the bottom of the hole to be sealed;

The conical plug comprises a central column and a chassis, the lower half part of the chassis is a cone, and the taper of the cone is matched with the taper of the inner wall of the expansion sleeve; the upper half part of the chassis is a column body, the lower bottom surface of the column body is connected with the large end surface of the cone body, and the center column is positioned above the chassis and is coaxially connected with the chassis;

The guide piece is of a cylindrical structure, and a first through hole matched with the outer diameter of the central column is axially formed in the guide piece; the outer side surface of the guide piece is uniformly provided with a plurality of guide rings which are used for being fixedly connected with the shell; the end surface of the guide piece, which is contacted with the pressing piece, is provided with a plurality of screw holes;

The end face of the compressing piece, which is contacted with the guide piece, is provided with a mounting groove, the diameter of the mounting groove is matched with the diameter of the central column, the upper end of the central column penetrates through the first through hole to stretch into the mounting groove, and the compressing piece is provided with a plurality of second through holes corresponding to the screw holes along the circumferential direction.

The sealing device comprises a shell, a sealing ring, a sealing piece and an inflation connector, wherein the sealing piece is a cylinder, a fixing ring is arranged on the outer side face of the sealing piece, and a threaded hole is formed in the fixing ring and used for fixing the sealing piece with the shell; the sealing element is axially provided with a threaded mounting hole for mounting an externally threaded inflation connector.

Further, the outer side surface of the sealing element is provided with a groove along the circumferential direction, and the O-shaped ring is arranged in the groove of the sealing element.

Further, the sealing device also comprises an end face sealing assembly, wherein the end face sealing assembly comprises a sealing gasket and a bottom plate, the bottom plate is placed on the end face to be sealed of the shell, the sealing gasket is attached to the bottom plate and located on the bottom plate, and threaded holes used for being connected with the shell are formed in the sealing gasket and the bottom plate.

Further, the diameter of the center post is smaller than the diameter of the chassis post.

Further, a guide screw hole is formed in the center of the guide ring and used for installing a bolt to fix the guide piece on the hole opening of the hole to be sealed of the shell.

Further, the diameter of the pressing member is the same as that of the guide member.

The utility model has the beneficial effects that:

1. The expansion sleeve of the conical plug sealing assembly is attached to the hole wall of the hole to be sealed and is placed at the bottom of the hole to be sealed. The screw passes through the pressing piece, the pressing piece applies downward pressing force to the conical plug, so that the cone of the conical plug chassis is extruded into the expansion sleeve at the bottom of the special hole, the sealing of the special hole is realized at the bottom, and the problem that the arc surface of the hole wall of the special hole is incomplete in disconnection is solved. The guide piece below the pressing piece is fixed on the shell through the guide ring on the side face of the guide piece, and the problem that a special hole lacks an effective pressing blocking surface is solved.

2. The utility model comprises a taper plug sealing assembly, an end surface sealing assembly and a radial sealing assembly, wherein the taper plug sealing assembly is used for plugging a special hole in a shell, the end surface sealing assembly is used for plugging the end surface of the shell, the radial sealing assembly is used for plugging various light holes in the shell, the three sealing assemblies are combined and matched for use, the shell parts with complex structures can be effectively sealed, and the fixture is used for effectively plugging products in the clamping and detecting processes, so that the established watertight detection requirement is met.

3. The utility model adopts three sealing components to mutually cooperate, and compared with the traditional end face sealing method, the utility model reduces the use of bolts and effectively simplifies the sealing structure, thereby avoiding the interference problem.

Drawings

FIG. 1 is a schematic view of a conical plug seal assembly in an embodiment of a watertight inspection jig for plugging complex structural shells according to the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the structure of the expansion sleeve in the embodiment of the watertight detection clamp for plugging a complex-structure shell;

FIG. 4 is a schematic view of the structure of the conical plug in an embodiment of the watertight detection fixture for plugging a complex-structured casing according to the present utility model;

FIG. 5 is a schematic view of the structure of the guide member in an embodiment of the watertight detecting jig for plugging a complex structural case according to the present utility model;

FIG. 6 is a schematic structural view of a pressing member in an embodiment of a watertight detection clamp for plugging a complex structural shell according to the present utility model;

FIG. 7 is a schematic view of a radial seal assembly in an embodiment of a watertight inspection jig for plugging complex structural shells according to the present utility model;

FIG. 8 is a schematic view of a part of an end face seal assembly in an embodiment of a watertight inspection jig for plugging complex structural shells according to the present utility model;

Fig. 9 is a schematic diagram of the overall structure of the end face seal assembly in an embodiment of the watertight detecting clamp for plugging a complex structure housing according to the present utility model.

Reference numerals illustrate:

The device comprises a 1-conical plug sealing assembly, a 11-expansion sleeve, a 12-guide piece, a 121-guide ring, a 122-first through hole, a 123-guide screw hole, a 13-conical plug, a 131-center column, a 132-chassis, a 14-compression piece, a 141-mounting groove, a 142-second through hole and a 15-screw hole; 2-radial seal assembly, 21-seal, 22-O-ring, 23-retainer ring, 24-inflation fitting; 3-end face seal assembly, 31-bottom plate, 32-gasket; 4-a shell.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

The utility model provides a shutoff complex structure casing's watertight detection anchor clamps, is shown as fig. 1, fig. 2, fig. 7 and fig. 8, includes taper plug seal assembly 1, terminal surface seal assembly 3 and radial seal assembly 2, and three kinds of seal assembly cooperation is used, carries out the shutoff to the hole of different shapes on the complex structure's the casing class part. The conical plug sealing assembly 1 comprises an expansion sleeve 11, a guide piece 12, a conical plug 13 and a pressing piece 14, wherein the upper end and the lower end of the expansion sleeve 11 are provided with openings as shown in fig. 3, the thickness of the expansion sleeve 11 is 2-3 mm, the inner wall of the expansion sleeve is a conical surface, and the outer wall of the expansion sleeve is a cylindrical surface. As shown in fig. 4, the conical plug 13 comprises a central column 131 and a chassis 132, the lower half part of the chassis 132 is a cone with a large end and a small end at the lower part, the taper of the cone is matched with the taper of the inner wall of the expansion sleeve 11, and the height of the cone is the same as that of the expansion sleeve 11; the upper half of the chassis 132 is a cylinder, the lower bottom surface of the cylinder is connected with the large end surface of the cone, and the diameter of the cylinder is the same as the diameter of the large end of the cone. The central column 131 is coaxial with the chassis 132 and is positioned on the upper surface of the chassis 132, namely, is connected to the upper surface of the column, and the diameter of the central column 131 is smaller than that of the column. The central column 131 is sleeved with a guide member 12, as shown in fig. 5, the guide member 12 has a cylindrical structure, a first through hole 122 matched with the outer diameter of the central column 131 is axially arranged on the guide member 12, and the guide member 12 is sleeved on the central column 131 through the first through hole 122. The first through hole 122 is identical to the central axis of the central column 131, and achieves a guiding function for the taper plug 13. Three screw holes 15 are arranged on the end surface of the guide piece 12, which is contacted with the pressing piece 14, and are used for being matched and connected with the pressing piece 14. Three guide rings 121 are arranged on the outer side face of the outer circle of the guide piece 12, the guide rings 121 are uniformly distributed along the circumferential direction of the outer circle, guide screw holes 123 are formed in the center of each guide ring 121, the guide piece 12 can be connected with the shell 4 through the guide screw holes 123 on the guide rings 121 by bolts, the guide piece 12 is fixed on the shell 4, and the taper plugs are fixed and limited. The top of the center post 131 is connected with a pressing member 14, and as shown in fig. 6, the pressing member 14 is a cylinder. The end face of the compressing element 14, which is contacted with the guiding element 12, is provided with a mounting groove 141, the diameter of the mounting groove 141 is matched with the outer diameter of the central column 131, and the top of the central column 131 is nested in the mounting groove 141, so that the compressing element 14 is connected with the central column 131, the central axis of the compressing element 14 is the same as the central axis of the central column 131, and the conical plug 13 can be well compressed. The diameter of the pressing piece 14 is the same as that of the outer circle of the guide piece 12, and three second through holes 142 uniformly distributed along the circumferential direction are also formed in the pressing piece 14, and the positions of the second through holes 142 correspond to the positions of the screw holes 15 in the guide piece 12. The screw passes through the second through hole 142 on the pressing member 14 and is connected with the screw hole 15 on the guide member 12, so that the upper end surface of the center post 131 abuts against the bottom of the mounting groove 141 when the seal is pressed.

When the conical plug sealing assembly 1 is used for sealing, the expansion sleeve 11 is firstly placed at the bottom of a special hole to be sealed, the expansion sleeve 11 is attached to the hole wall, the guide piece 12 is sleeved on the center column 131 of the conical plug 13, the conical plug 13 is placed in the special hole to be sealed, and meanwhile, a bolt penetrates through the guide screw hole 123 on the guide ring 121 to fix the guide ring 121 at the hole opening of the special hole. Finally, the pressing piece 14 is arranged at the top of the center column 131 of the conical plug 13, a bolt passes through the second through hole 142 on the pressing piece 14 and is connected with the screw hole 15 on the guide piece 12, the pressing piece 14 is fixedly connected with the guide piece 12, meanwhile, downward pressing force is applied to the conical plug 13, and the cone at the bottom of the conical plug 13 is extruded into the expansion sleeve 11, so that the sealing of a special hole is realized, and the problems that the end face of the blocking is blocked by the lack of effective pressing of the special hole and the arc surface of the inner wall of the special hole is incomplete in disconnection are solved.

The watertight detection step comprises inner cavity detection and oil duct detection, and when the oil duct detection is carried out, the radial sealing assembly 2 is used, as shown in fig. 7, and comprises an O-shaped ring 22 and a sealing piece 21, wherein the sealing piece 21 is a cylinder matched with an oil duct hole, a mounting hole with internal threads is axially formed in the cylinder, and the mounting hole is used for being connected with an externally-threaded inflation connector 24. The outer side of the seal 21 is provided with grooves along the circumference for the placement of O-rings 22. The sealing member 21 is provided with a fixed ring 23 on the outer side, and a threaded hole is formed in the center of the fixed ring 23. The seal 21 is placed vertically in the oil passage hole so as to be closely adhered to the wall of the hole. The sealing piece 21 is fixed in the oil duct hole by using bolts to penetrate through the shell and be connected with threaded holes on the fixed ring 23, and the bolts are screwed down to compress, so that the radial sealing assembly 2 seals the oil duct.

When the inner cavity is detected, the end face sealing assembly 3 is used, as shown in fig. 8 and 9, and comprises a sealing gasket 32 and a bottom plate 31, wherein the bottom plate 31 is placed on the end face of the shell 4, the sealing gasket 32 is attached to the bottom plate 31, and threaded holes corresponding to the positions are formed in the bottom plate 31. The bolts sequentially penetrate through the sealing gasket 32 and the bottom plate 31 from top to bottom and extend into corresponding threaded holes in the shell 4, the bolts are pressed tightly, the sealing gasket 32 and the bottom plate 31 are tightly attached to the end face of the shell 4, and the end face of the shell 4 is plugged.

The conical plug sealing assembly 1, the end face sealing assembly 3 and the radial sealing assembly 2 are combined and matched for use, so that not only can a common hole to be sealed with an oil duct hole with an effective joint end face be sealed, but also a special hole without an effective compression blocking surface and with an incomplete disconnection condition on the circular arc surface of the hole wall can be blocked. Therefore, the shell 4 parts with the complex structure are effectively sealed, and the clamp ensures that the product is effectively blocked in the clamping and detecting processes, so that the established watertight detection requirement is met.

Claims (7)

1. The utility model provides a shutoff complex structure casing's watertight detects anchor clamps which characterized in that: comprises a conical plug sealing assembly (1);

the conical plug sealing assembly (1) comprises an expansion sleeve (11), a guide piece (12), a conical plug (13) and a pressing piece (14), wherein the inner wall of the expansion sleeve (11) is a conical surface, and the outer wall of the expansion sleeve is a cylindrical surface; the expansion sleeve (11) is used for being placed at the bottom of the hole to be sealed;

The conical plug (13) comprises a central column (131) and a base plate (132), the lower half part of the base plate (132) is a cone, and the taper of the cone is matched with the taper of the inner wall of the expansion sleeve (11); the upper half part of the chassis (132) is a column body, the lower bottom surface of the column body is connected with the large end surface of the cone body, and the center column (131) is positioned above the chassis (132) and is coaxially connected with the chassis (132);

The guide piece (12) is of a cylindrical structure, and a first through hole (122) which is matched with the outer diameter of the central column (131) is arranged along the axial direction; a plurality of guide rings (121) are uniformly arranged on the outer side surface of the guide piece (12) and are used for being fixedly connected with the shell (4); the end surface of the guide piece (12) contacted with the pressing piece (14) is provided with a plurality of screw holes (15);

the end face, which is contacted with the guide piece (12), of the pressing piece (14) is provided with a mounting groove (141), the diameter of the mounting groove (141) is matched with the diameter of the central column (131), the upper end of the central column (131) penetrates through the first through hole (122) to extend into the mounting groove (141), and the pressing piece (14) is provided with a plurality of second through holes (142) corresponding to the screw holes (15) along the circumferential direction.

2. The watertight inspection jig for plugging complex structural shells according to claim 1, wherein:

The sealing device comprises a shell (4) and is characterized by further comprising a radial sealing assembly (2), wherein the radial sealing assembly (2) comprises an O-shaped ring (22), a sealing piece (21) and an inflation connector (24), the sealing piece (21) is a cylinder, a fixing ring (23) is arranged on the outer side surface of the sealing piece (21), and a threaded hole is formed in the fixing ring (23) and used for fixing the sealing piece (21) with the shell; the sealing element (21) is provided with a threaded mounting hole along the axial direction for mounting an externally threaded inflation connector (24).

3. The watertight inspection jig for plugging complex structural shells according to claim 2, wherein:

the sealing element (21) is provided with a groove on the outer side face along the circumferential direction, and the O-shaped ring (22) is arranged in the groove of the sealing element (21).

4. The watertight inspection jig for plugging complex structural shells according to claim 1, wherein:

still include terminal surface seal assembly (3), terminal surface seal assembly (3) are including sealed pad (32) and bottom plate (31), bottom plate (31) are placed on the terminal surface that casing (4) are waited to seal, sealed pad (32) laminating is on bottom plate (31) and be located bottom plate (31), is equipped with the screw hole that is used for being connected with casing (4) on sealed pad (32) and bottom plate (31).

5. A watertight inspection jig for plugging complex structural shells according to any one of claims 1 to 4, wherein:

The diameter of the center column (131) is smaller than that of the column of the chassis (132).

6. The watertight inspection clamp for plugging complex structural shells according to claim 5, wherein:

A guide screw hole (123) is formed in the center of the guide ring (121).

7. The watertight inspection jig for plugging complex structural shells according to claim 6, wherein:

The diameter of the pressing piece (14) is the same as that of the guide piece (12).