CN219866225U - Plugging mechanism for detecting tightness of new energy automobile shell - Google Patents

Abstract

The utility model relates to the technical field of tightness detection tools, and provides a plugging mechanism for tightness detection of a new energy automobile shell part, which comprises the following components: the supporting seat is provided with a supporting block; the moving block is movably arranged above the supporting seat; the pressing block is movably connected with the moving block, a moving space is formed between the compression block and the moving block, and the lower end of the pressing block is movably propped against the propping block; and the limiting sleeve is sleeved on the outer side of the pressing block and movably arranged in the moving space, and mounting grooves are formed between the outer side walls of the upper end and the lower end of the limiting sleeve and the moving block as well as between the limiting sleeve and the pressing block. Compared with the prior art, the utility model has the advantages that the compression expansion of the two sealing rings is realized through the arrangement of the limiting sleeve, the moving block and the pressing block, the degree of each time the sealing rings are compressed can be limited through the arrangement of the mounting groove, the situation that the sealing rings are excessively compressed or insufficiently compressed is prevented, the compression accuracy of the sealing rings is improved, and the service life of the sealing rings is prolonged.

Description

Plugging mechanism for detecting tightness of new energy automobile shell

Technical Field

The utility model relates to the technical field of tightness detection tools, in particular to a plugging mechanism for tightness detection of a new energy automobile shell.

Background

The casing plays the effect of supporting, protection inside drive mechanism or preserving lubricating oil, its sealing performance plays the key effect, if the leakproofness is not good, cause lubricating oil to reveal easily on the one hand, pollute the environment, on the other hand lubricating oil is revealed in a large number and is caused gear lubrication bad, influence transmission efficiency easily, so need carry out the leakproofness to the casing after casing casting forming and detect, current leakproofness detection of casing is mostly with casing inner chamber and external air pattern then in the middle of the casing inner chamber, detect the casing through detecting the velocity of flow of gas and have the circumstances that the leakproofness is bad, but some casings require the higher region of leakproofness not the inner chamber of whole casing, but in a certain region in the inner chamber, current leakproofness detection mechanism can't realize the leakproofness detection demand under this kind of circumstances.

To solve the above-mentioned problems, chinese patent application publication No. C N217440786U, which is already in an authorized state, discloses a blocking mechanism for detecting tightness of a housing, comprising: the lower die assembly is provided with a shell to be detected, and is provided with a propping block; the upper die assembly is movably arranged above the lower die assembly; a pressing assembly movable within the housing; the sealing assembly is elastically connected to the lower part of the extrusion assembly, a sealing space is arranged between the extrusion assembly and the sealing assembly, and a sealing ring is arranged in the sealing space; when the upper die assembly moves to a preset position in the direction of the lower die assembly, the abutting block abuts against the lower end of the sealing assembly to enable the sealing assembly to move upwards relative to the extrusion assembly, so that the sealing space is reduced, and the sealing ring is extruded and expanded. Compared with the prior art, the utility model has the advantages that the abutting block can abut against the sealing assembly to move upwards relative to the extrusion assembly, so that the sealing space is reduced, the sealing ring is extruded and expanded, and the tightness detection requirement of the shell rib position is realized.

However, the total compression amount of the two sealing rings on the plugging mechanism is fixed, the independent compression amount of each sealing ring is uncertain, and when the plugging mechanism works, excessive compression of one sealing ring and insufficient compression of the other sealing ring are easy to occur, so that the service life of the sealing ring with excessive compression can be shortened, and the sealing ring is not abutted against the side wall of a workpiece due to insufficient compression of one sealing ring, so that inaccuracy of detection of the tightness of the workpiece is finally caused.

Disclosure of Invention

The utility model aims to solve the technical problem of the prior art, and provides a plugging mechanism for detecting the tightness of a new energy automobile shell.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a shutoff mechanism for new energy automobile casing leakproofness detects, include: the support seat is used for placing a shell to be detected, and a supporting block is arranged on the support seat;

the moving block is movably arranged above the supporting seat;

a pressing block, wherein the upper end of the pressing block is movably inserted into the moving block, a moving space is formed between the lower part of the pressing block and the upper part of the moving block, and the lower end of the pressing block is movably propped against the propping block;

the limiting sleeve is sleeved on the outer side of the pressing block and is movably arranged in the moving space, a first gap is arranged between the upper end of the limiting sleeve and the moving block, a second gap is arranged between the lower end of the limiting sleeve and the pressing block, mounting grooves are formed between the outer side walls of the upper end and the lower end of the limiting sleeve and the moving block and between the outer side walls of the upper end and the lower end of the limiting sleeve and the pressing block, and the mounting grooves are used for mounting sealing rings;

when the moving block moves downwards, the sealing ring arranged below is extruded to drive the limiting sleeve to move in the moving space towards the moving block, and when the upper end and the lower end of the limiting sleeve move to be respectively abutted against the moving block and the pressing block, the widths of the two mounting grooves are reduced, the sealing ring is extruded, and the sealing ring is expanded and abutted against the inner side wall of the shell.

In the plugging mechanism for detecting the tightness of the shell of the new energy automobile, the pressing block and the upper end of the limiting sleeve are recessed inwards to form a plurality of mounting holes, and the mounting holes are internally provided with the first elastic pieces.

In the plugging mechanism for detecting the tightness of the shell of the new energy automobile, the lower end of the moving block is in threaded connection with the fixed ring, the inner side of the lower part of the limiting sleeve is provided with the limiting part, and the limiting part is movably abutted to the upper end face of the fixed ring.

The plugging mechanism for detecting the tightness of the shell of the new energy automobile further comprises: the upper end of the moving block is connected to the supporting block through threads;

the support block is connected to the lower end of the fixing plate in a threaded manner;

and the limiting column is fixed below the fixed plate and inserted into the moving block, and the lower end of the limiting column is movably abutted against the pressing block.

In the plugging mechanism for detecting the tightness of the shell of the new energy automobile, the pressing block is provided with the bolt through hole penetrating through the pressing block, the moving block is provided with the threaded hole, and the equal-height bolts penetrate through the bolt through hole and are connected into the threaded hole.

The plugging mechanism for detecting the tightness of the shell of the new energy automobile comprises a supporting seat, wherein a guide sleeve is connected to the supporting seat in a threaded manner, a guide post is connected to the middle of the guide sleeve, a countersunk head is arranged at the upper end of the guide post, a countersunk head hole is formed in the middle position of the abutting block, the abutting block is inserted into the guide sleeve, a second elastic piece is arranged between the guide sleeve and the abutting block, and the guide post penetrates through the countersunk head hole and the lower end of the countersunk head is movably abutted to the bottom wall of the countersunk head hole.

The plugging mechanism for detecting the tightness of the shell of the new energy automobile comprises:

a body block;

the pushing column is connected to the lower end of the main body block and movably abuts against the abutting block.

Compared with the prior art, the utility model has the advantages that the compression expansion of the two sealing rings is realized through the arrangement of the limiting sleeve, the moving block and the pressing block, the degree of compression of each sealing ring can be limited through the arrangement of the mounting groove, the detection precision of the detection of the tightness of the shell is increased, the situation that one or two sealing rings are excessively compressed or not compressed can be prevented, and the compression accuracy of the sealing rings and the service life of the sealing rings are increased.

Drawings

FIG. 1 is a perspective view of the utility model in operation;

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

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 4 is a perspective view of the moving block, the pressing block, the stop collar and the stop collar when installed;

FIG. 5 is a cross-sectional view taken along the direction B-B in FIG. 4;

FIG. 6 is a perspective view of the stop collar;

fig. 7 is a perspective view of the pressing block.

In the figure, 1, a supporting seat; 2. a tightening block; 3. a housing; 4. a moving block; 5. pressing the blocks; 6. a limit sleeve; 7. a first gap; 8. a second gap; 9. a mounting groove; 10. a seal ring; 11. a mounting hole; 12. a first elastic member; 13. a fixing ring; 14. a limit part; 15. a support block; 16. a fixing plate; 17. a limit column; 18. bolt through holes; 19. a threaded hole; 20. a guide sleeve; 21. a guide post; 22. a countersunk head; 23. a countersunk hole; 24. a second elastic member; 25. a body block; 26. pushing the column.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 7, a plugging mechanism for detecting the tightness of a new energy automobile shell according to the present utility model includes: the support seat 1, the support seat 1 is used for placing the shell 3 to be detected, and the support seat 1 is provided with a propping block 2; the moving block 4 is movably arranged above the supporting seat 1; the pressing block 5, the upper end of the pressing block 5 is movably inserted into the moving block 4, a moving space is formed between the lower part of the pressing block 5 and the upper part of the moving block 4, and the lower end of the pressing block 5 is movably propped against the propping block 2; the limiting sleeve 6 is sleeved on the outer side of the pressing block 5 and is movably arranged in the moving space, a first gap 7 is arranged between the upper end of the limiting sleeve 6 and the moving block 4, a second gap 8 is arranged between the lower end of the limiting sleeve 6 and the pressing block 5, and mounting grooves 9 are formed between the outer side walls of the upper end and the lower end of the limiting sleeve 6 and the moving block 4 as well as between the outer side walls of the upper end and the lower end of the limiting sleeve 6 and the pressing block 5, and the mounting grooves 9 are used for mounting sealing rings 10; when the moving block 4 moves downwards, the sealing ring 10 arranged below is extruded to drive the limiting sleeve 6 to move towards the moving block 4 in the moving space, and when the upper end and the lower end of the limiting sleeve 6 respectively abut against the moving block 4 and the pressing block 5, the widths of the two mounting grooves 9 are reduced and the sealing ring 10 is extruded, so that the sealing ring 10 is expanded and abutted against the inner side wall of the shell 3.

During operation, place casing 3 on supporting seat 1, remove and insert casing 3 inside for supporting seat 1 with movable block 4, send into the sealing washer 10 of installation in the mounting groove 9 inside the casing 3 and carry out the seal with the part that needs to carry out the leakproofness detection, at first drive press block 5 and support tight piece 2 and support tightly after, movable block 4 continues to remove, press the sealing washer 10 that the piece 5 compresses in the below under the promotion of support tight piece 2 this moment, the sealing washer 10 compresses while promotes stop collar 6 and upwards moves at the lateral wall of pressing piece 5, the sealing washer 10 that is used for compressing in the top when stop collar 6 removes, and when clamp sleeve 6 removes, the width of first clearance 7, second clearance 8 and mounting groove 9 gradually reduces, when stop collar 6 removes to its upper and lower both ends respectively with movable block 4 and press tight piece 5, stop collar 6 no longer moves for press 5 and movable block 4, the width of mounting groove 9 keeps unchanged, both preset width of clamp collar 10 to the outside, the sealing washer 10 has also can be used for compressing by the sealing washer 10 to the degree of setting up to the compression of sealing washer 4, the sealing washer 10 is not to the degree of detecting the two or can also be compressed by the sealing washer 10 at the same time, the degree of compression of the limit 10 has also can be realized, and the compression of the sealing washer 10 is not increased, the compression of the degree of the sealing washer can be detected by the compression of the sealing washer 10 or the compression of the sealing washer is detected at the time, the compression of one of the sealing washer is detected.

Further, the upper ends of the pressing block 5 and the limiting sleeve 6 are recessed inwards to form a plurality of mounting holes 11, and first elastic pieces 12 are arranged in the mounting holes 11.

The first elastic piece 12 is gradually in a compressed state when the moving block 4 and the limiting sleeve 6 work, and after the workpiece tightness detection work is completed and the moving block 4 moves upwards, the first elastic piece 12 is restored to an extended state and pushes the moving block 4 and the limiting sleeve 6 to reset.

Further, the lower end of the moving block 4 is connected with a fixed ring 13 in a threaded manner, a limiting part 14 is arranged on the inner side of the lower part of the limiting sleeve 6, and the limiting part 14 is movably abutted against the upper end face of the fixed ring 13.

The fixed ring 13 is used for being fixed at the lower end of the limiting sleeve 6, and preventing the limiting sleeve 6 from being separated from the pressing block 5.

Further, the scheme further comprises: the upper end of the moving block 4 is connected to the supporting block 15 through threads; the fixed plate 16, the supporting block 15 is connected to the lower end of the fixed plate 16 by screw thread; and a limiting column 17 fixed below the fixed plate 16 and inserted into the moving block 4, wherein the lower end of the limiting column 17 is movably abutted against the pressing block 5.

The fixed plate 16 is used for being connected to other transmission mechanisms, the transmission mechanism drives the supporting block 15 to move, the supporting block 15 drives the moving block 4 connected under the supporting block 15 to move above the supporting seat 1 when moving, and the limiting column 17 is used for limiting the continuous movement of the pressing block 5 after the two sealing rings 10 are compressed to the preset positions.

Further, a bolt through hole 18 penetrating through the pressing block 5 is formed in the pressing block 5, a threaded hole 19 is formed in the moving block 4, a constant-height bolt penetrates through the bolt through hole 18 and is connected in the threaded hole 19, and the constant-height bolt is used for achieving movable connection between the pressing block 5 and the moving block 4.

Further, the supporting seat 1 is connected with the guide sleeve 20 in a threaded manner, the guide sleeve 20 is connected with the guide post 21 in the middle, the countersunk head 22 is arranged at the upper end of the guide post 21, the countersunk head hole 23 is arranged at the middle position of the abutting block 2, the abutting block 2 is inserted into the guide sleeve 20, the second elastic piece 24 is arranged between the guide sleeve 20 and the abutting block 2, the guide post 21 penetrates through the countersunk head hole 23, and the lower end of the countersunk head 22 movably abuts against the bottom wall of the countersunk head hole 23.

Because the sealing rings 10 are compressed in the shell 3, due to the existence of dimensional tolerance of the shell 3, deviation may exist at the position of the shell 3, which needs to be detected in the tightness, and the guide sleeve 20 is arranged on the supporting seat 1, and the guide post 21 and the second elastic piece 24 are used for realizing movable connection between the abutting block 2 and the guide sleeve 20, so that when the size of the shell 3 fluctuates within the tolerance range, the expansion positions of the two sealing rings 10 along the height direction of the shell 3 can be finely adjusted, thereby ensuring the accuracy of the detection result of the tightness of the shell 3.

Further, the pressing block 5 includes: a main body block 25; a pushing post 26 connected to the lower end of the body block 25 and movably abutted against the abutment block 2.

The main body block 25 is used for driving the compression of the sealing ring 10, the pushing column 26 is used for being abutted against the movement between the abutting blocks 2, and the pushing column 26 and the main body block 25 can be integrally formed or connected in a threaded connection or embedded connection mode.

Preferably, both the first elastic member 12 and the second elastic member 24 may be springs or rubber products.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined in the accompanying claims.

Claims (7)

1. A shutoff mechanism for new energy automobile casing leakproofness detects, its characterized in that includes:

the support seat is used for placing a shell to be detected, and a supporting block is arranged on the support seat;

the moving block is movably arranged above the supporting seat;

a pressing block, wherein the upper end of the pressing block is movably inserted into the moving block, a moving space is formed between the lower part of the pressing block and the upper part of the moving block, and the lower end of the pressing block is movably propped against the propping block;

the limiting sleeve is sleeved on the outer side of the pressing block and is movably arranged in the moving space, a first gap is arranged between the upper end of the limiting sleeve and the moving block, a second gap is arranged between the lower end of the limiting sleeve and the pressing block, mounting grooves are formed between the outer side walls of the upper end and the lower end of the limiting sleeve and the moving block and between the outer side walls of the upper end and the lower end of the limiting sleeve and the pressing block, and the mounting grooves are used for mounting sealing rings;

when the moving block moves downwards, the sealing ring arranged below is extruded to drive the limiting sleeve to move in the moving space towards the moving block, and when the upper end and the lower end of the limiting sleeve move to be respectively abutted against the moving block and the pressing block, the widths of the two mounting grooves are reduced, the sealing ring is extruded, and the sealing ring is expanded and abutted against the inner side wall of the shell.

2. The plugging mechanism for detecting the tightness of the shell of the new energy automobile as claimed in claim 1, wherein the pressing block and the upper end of the limiting sleeve are recessed inwards to form a plurality of mounting holes, and first elastic pieces are arranged in the mounting holes.

3. The plugging mechanism for detecting tightness of a shell of a new energy automobile according to claim 1, wherein a fixed ring is connected to the lower end of the moving block in a threaded manner, a limiting part is arranged on the inner side of the lower part of the limiting sleeve, and the limiting part is movably abutted to the upper end face of the fixed ring.

4. The plugging mechanism for detecting tightness of a shell of a new energy automobile as claimed in claim 1, further comprising: the upper end of the moving block is connected to the supporting block through threads;

the support block is connected to the lower end of the fixing plate in a threaded manner;

and the limiting column is fixed below the fixed plate and inserted into the moving block, and the lower end of the limiting column is movably abutted against the pressing block.

5. The plugging mechanism for detecting the tightness of the shell of the new energy automobile according to claim 1, wherein the pressing block is provided with a bolt through hole penetrating through the pressing block, the moving block is provided with a threaded hole, and a bolt with the same height penetrates through the bolt through hole and is connected in the threaded hole.

6. The plugging mechanism for detecting tightness of a shell of a new energy automobile according to claim 1, wherein the supporting seat is connected with a guide sleeve in a threaded manner, a guide post is connected in the middle of the guide sleeve, a countersunk head is arranged at the upper end of the guide post, a countersunk head hole is arranged in the middle of the abutting block, the abutting block is inserted into the guide sleeve, a second elastic piece is arranged between the guide sleeve and the abutting block, and the guide post penetrates through the countersunk head hole and the lower end of the countersunk head is movably abutted against the bottom wall of the countersunk head hole.

7. The plugging mechanism for detecting tightness of a housing of a new energy automobile as claimed in claim 1, wherein the pressing block comprises:

a body block;

the pushing column is connected to the lower end of the main body block and movably abuts against the abutting block.