CN213512044U - Self-adaptive guide sealing device - Google Patents

Abstract

The utility model relates to a sealing device is just led to self-adaptation, including the direction bottom plate, set up positioning seat and locating plate on the direction bottom plate, the locating plate sets up the locating surface towards positioning seat one side, set up the open slot that runs through the locating plate on the locating plate, a side of open slot sets up on the locating surface to the open end, set up the locating piece of admitting air between locating seat and the locating plate, fixed seal cushion piece is connected towards the side of locating plate to the locating piece of admitting air, it connects universal antithetical couplet axostylus axostyle to admit air between locating piece and the locating plate, wherein the one end of universal antithetical couplet axostylus axostyle sets up bulb portion, this bulb portion.

Description

Self-adaptive guide sealing device

Technical Field

The utility model relates to a car silencer detects frock, concretely relates to sealing device is led to self-adaptation.

Background

And (5) checking the air tightness after the exhaust muffler is processed, and searching for missing point repair welding if the exhaust muffler is unqualified. According to the difference of the side test section, the air tightness detection is divided into two types: one is visual method, i.e. the pressurized silencer is immersed in water to observe whether there are bubbles in the water. The other is an instrument method, namely, a pressurized silencer is connected with a pressure sensor, and whether the workpiece leaks or not is judged according to an output signal of the pressure sensor. In the existing plugging mode, in long-term working practice, tool devices needing sealing air pressure detection are designed according to the shape and the accurate size of a product, the device is high in specificity, the plugging device can only carry out axial propulsion, and the angle of a sealing surface is kept unchanged; when the product size uniformity reduces, when the size is undulant, the sealed face is because the product size easily, especially because the angle variation of ring flange etc. cause the sealing pressure of sealed face inhomogeneous, appear sealed not tight, the easy unilateral gas leakage condition. During conventional operation, when the condition of unilateral air leakage occurs, the sealing detection function can be smoothly realized after the operation is performed for many times.

Disclosure of Invention

The utility model aims at prior art not enough, provide a sealing device is just led to self-adaptation, it can improve the device multi-angle, the undulant fault tolerance of jumbo size scope, can make the sealing pressure of sealed face disperse more, improves the sealing performance of sealed face, the effectual convenience that improves operator's work efficiency and operation has further reduced product process cost consumption.

The purpose of the utility model is realized like this: a self-adaptive guide sealing device comprises a guide bottom plate, wherein a positioning seat and a positioning plate are arranged on the guide bottom plate, a positioning surface is arranged on one side, facing the positioning seat, of the positioning plate, an open slot penetrating through the positioning plate is formed in the positioning plate, a lateral opening end of the open slot is arranged on the positioning surface, an air inlet positioning block is arranged between the positioning seat and the positioning plate, a fixed sealing cushion block is connected to the side, facing the positioning plate, of the air inlet positioning block, a universal connecting shaft rod is connected between the air inlet positioning block and the positioning seat, a ball head part is arranged at one end of the universal connecting shaft rod, the ball head part extends into a hole in the air inlet positioning block and is in rotating fit with the hole, the maximum diameter of the ball head part is larger than the opening aperture of the hole, the other end of the universal connecting shaft rod is connected and, the action area of the elastic pressure on the air inlet positioning block comprises three non-collinear three stress points, and the action point of the resultant applied to the positioning plate by the ball head is positioned in a closed area formed by the end-to-end connection of the non-collinear three stress points.

The hole comprises a three-stage stepped hole section, a large-diameter section opening end of the three-stage stepped hole section faces one side of the positioning plate and is matched with a locking threaded plug through internal threads, a middle-diameter section of the three-stage stepped hole section is in sliding fit with the ball head portion, and the front section of the universal coupling shaft rod connected with the bottom of the ball head portion extends out of the positioning seat through a small-diameter section of the three-stage stepped hole section.

The air inlet positioning block is characterized in that a mounting hole is formed in one side, facing the sealing cushion block, of the air inlet positioning block, the sealing cushion block is fixedly mounted in the mounting hole, a third-stage stepped hole section is formed in the bottom of the mounting hole, and the opening end of the large-diameter section of the third-stage stepped hole section is arranged at the bottom of the mounting hole.

The elastic element is a compression spring, the compression spring is sleeved outside the universal coupling shaft rod in an empty mode, and annular mounting grooves used for mounting and fixing the ends of the compression spring are formed in the opposite surfaces of the air inlet positioning block or/and the positioning seat.

The bottom of the guide bottom plate is connected to the upper end face of the lower bottom plate through a sliding rail.

The sealing cushion block is made of a rubber pad.

And one side of the positioning seat facing the positioning plate is provided with a reinforcing rib plate, the vertical edge of the reinforcing rib plate is fixedly connected with the positioning seat through a bolt, and the transverse edge of the reinforcing rib plate is fixedly connected with the guide bottom plate through a bolt.

The linear driving device is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

The silencer flange butt joint air inlet structure is characterized in that a first air inlet is formed in the air inlet positioning block, an air inlet port of the first air inlet is formed in the edge face of the air inlet positioning block, an air outlet port of the first air inlet is formed in the joint face of the air inlet positioning block and the sealing cushion block, a second air inlet penetrating through the sealing cushion block is formed in the sealing cushion block, an air inlet of the second air inlet is communicated with an air outlet port of the first air inlet, and an air outlet port of the second air inlet is formed in the sealing face, used for being in butt joint with a silencer flange, of.

The open slot is U type groove, set up a plurality of recesses of stepping down on the outer fringe of locating piece admits air.

Adopt above-mentioned scheme, beneficial effect as follows, sets up the locating surface towards positioning seat one side, and this locating surface supports and leans on the flange back of waiting to detect the silencer, set up the open slot that runs through the locating plate on the locating plate, the open slot is used for the blast pipe of joint silencer, and during operation, the locating piece that admits air is close to the mouth of pipe of silencer, compresses tightly on the mouth of pipe through the sealing member and carries out shutoff and sealed to the mouth of pipe. Wherein the one end of universal shaft coupling pole sets up bulb portion, this bulb portion stretches into on the locating piece that admits air hole and with hole normal running fit, the maximum diameter of bulb portion is greater than the opening aperture in hole, adopt this kind of structure, if the mouth of pipe inclines or when not placing according to standard position completely, because universal shaft coupling pole exerts pressure to the locating piece that admits air, and bulb portion and hole cooperation structure can't restrict rotational freedom, the locating piece that admits air can the suitable angle of swing of adaptability and seals the mouth of pipe, can make sealing pressure more even, can self-adaptation mouth of pipe position, adopt above-mentioned scheme, can satisfy sealed detection requirement through improving the multi-angle, the undulant fault tolerance of jumbo size range. The positioning seat applies elastic pressure to the air inlet positioning block through the elastic element, the action area of the elastic pressure to the air inlet positioning block comprises three non-collinear three stress points, the action point of the resultant force applied by the ball head part to the positioning block is positioned in a closed area formed by the end-to-end connection of the non-collinear three stress points, and by adopting the arrangement structure, the axial pressure application to the air inlet positioning block can be assisted, and the sealing strength is increased; simultaneously, because bulb connection structure can't restrict the rotational degree of freedom to the locating piece that admits air, adopt this kind of arrangement structure, the locating piece that admits air is just led automatically, when the location of admitting air is withdrawn, elastic element can lead to the crooked location of admitting air of arbitrary angle, can prevent that the locating piece that admits air from seriously skewing, the manual work is assisted just to connecing the operation when avoiding next operation, if a plurality of elastic element's elastic component evenly arranges, elasticity can make the locating piece that admits air ajust, relative universal shaft coupling axle axis is perpendicular. The utility model discloses, can improve the fault-tolerance that detection device multi-angle, jumbo size scope are undulant, can disperse the sealing pressure of sealed face, improve the sealing performance of sealed face, the effectual work efficiency who improves the operator and the convenience of operation have further reduced product process cost consumption, because do not need operator's frequent adjustment simultaneously, have effectively reduced operator's intensity of labour.

The invention will be further explained with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an intake positioning block;

fig. 3 is a schematic view of the usage state of the present invention.

In the drawing, 100 is a guide bottom plate, 110 is a slide rail, 120 is a lower bottom plate, 200 is a positioning seat, 210 is a linear driving device, 220 is an elastic element, 230 is a reinforcing rib plate, 300 is a positioning plate, 310 is a positioning surface, 320 is an open slot, 400 is an air inlet positioning block, 410 is a hole, 411 is a large-diameter section, 412 is a medium-diameter section, 413 is a small-diameter section, 414 is a locking threaded plug, 420 is a mounting hole, 430 is an annular mounting groove, 450 is a first air inlet hole, 460 is a second air inlet hole, 470 is a yielding groove, 500 is a seal cushion block, 600 is a universal coupling shaft rod, and 610 is a ball head.

Detailed Description

Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, an embodiment of a self-adaptive guide sealing device, includes a guide base plate 100, a positioning seat 200 and a positioning plate 300 are disposed on the guide base plate 100, a positioning surface 310 is disposed on one side of the positioning plate 300 facing the positioning seat 200, an open slot 320 penetrating through the positioning plate 300 is disposed on the positioning plate 300, the open slot 320 is a U-shaped slot, in this embodiment, an opening of the U-shaped slot may be disposed upward, and the U-shaped slot is used for clamping a pipe section on a muffler. One side of open slot 320 is to the open end setting on locating surface 310, set up the locating piece 400 that admits air between locating seat 200 and the locating plate 300, it sets up a plurality of recesses 470 that yield to admit air on the outer fringe of locating piece 400, should yield the groove and be applicable to the silencer that is fixed with connecting bolt on the partial flange, should yield recess 470 and be used for giving connecting bolt and yield. Preferably, a reinforcing rib plate 230 is arranged on one side of the positioning seat 200 facing the positioning plate 300, vertical edges of the reinforcing rib plate 230 are fixedly connected with the positioning seat 200 through bolts, horizontal edges of the reinforcing rib plate 230 are fixedly connected with the guide bottom plate 100 through bolts, and the reinforcing positioning plate 300 plays a role in reinforcing and fixing.

The side of the air inlet positioning block 400 facing the positioning plate 300 is connected with the fixed sealing cushion block 500, in this embodiment, the air inlet positioning block 400 is provided with a mounting hole 420 facing one side of the sealing cushion block 500, the sealing cushion block 500 is fixedly mounted in the mounting hole 420, the mounting hole 420 can position the sealing cushion block 500 to prevent the sealing cushion block 500 from moving radially, the sealing cushion block 500 is made of a rubber pad, and the contact surface of the sealing cushion block 500 deforms when being pressed, so that the air inlet plugging is performed on the flange end of the silencer.

A universal coupling shaft rod 600 is connected between the air inlet positioning block 400 and the positioning seat 200, wherein one end of the universal coupling shaft rod 600 is provided with a ball head portion 610, the ball head portion 610 extends into the hole 410 on the air inlet positioning block 400 and is in rotating fit with the hole 410, and the maximum diameter of the ball head portion 610 is larger than the opening aperture of the hole 410; the cavity 410 may include a three-stage stepped hole section, a large diameter section 411 of the three-stage stepped hole section has an opening end facing one side of the positioning plate 300 and is matched with a locking threaded plug 414 through internal threads, the locking threaded plug 414 prevents the universal coupling shaft rod 600 from being ejected out during operation, a middle diameter section 412 of the three-stage stepped hole section is in sliding fit with a ball head portion 610, and a front section of the universal coupling shaft rod 600 connected to the bottom of the ball head portion 610 extends out towards the positioning seat 200 through a small diameter section 413 of the three-stage stepped hole section; in this embodiment, the third-stage stepped hole section is disposed at the bottom of the installation hole 420, and the opening end of the large-diameter section 411 of the third-stage stepped hole section is disposed at the bottom of the installation hole 420.

The other end of the universal coupling shaft rod 600 is connected and fixed with the linear driving end of the linear driving device 210 on the positioning seat 200, and the linear driving device 210 may be a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. In this embodiment, the back of the positioning seat 200 is connected and fixed with a pneumatic cylinder through a bolt, and the driving end of the pneumatic cylinder body penetrates through a via hole on the positioning seat 200 and is fixed with the end of the universal coupling shaft rod 600. The positioning seat 200 applies elastic pressure to the air inlet positioning block 400 through the elastic element 220, the acting area of the elastic pressure to the air inlet positioning block 400 comprises three non-collinear three force bearing points, and the acting point of the resultant force applied by the ball head 610 to the positioning plate 300 is located in a closed area formed by the end-to-end connection of the non-collinear three force bearing points. The elastic element 220 can be an elastic component formed by combining a plurality of elastic mechanical parts such as helical springs, nitrogen springs, rubber blocks or gas springs, the plurality of elastic mechanical parts such as helical springs, nitrogen springs, rubber blocks or gas springs can be arranged in an annular array around the ball head 610, the central angle corresponding to the elastic mechanical parts such as any adjacent helical springs, nitrogen springs, rubber blocks or gas springs is less than 180 degrees, by adopting the arrangement structure, the action area of the elastic pressure on the air inlet positioning block 400 comprises three non-collinear three stress points, the action point of the resultant force exerted by the ball head 610 on the positioning plate 300 is positioned in a closed area formed by connecting the non-collinear three stress points end to end, by adopting the structure, the automatic guiding of the elastic element 220 on the air inlet positioning block 400 can be realized, the air inlet positioning block 400 can be prevented from being seriously skewed, manual assistance is avoided, the air inlet positioning block 400 is prevented from being rightly connected, if a plurality of elastic parts of the elastic element 220 are uniformly distributed, the elastic force can enable the air inlet positioning block 400 to be rightly arranged, and the axis of the air inlet positioning block is vertical to that of the universal connecting shaft rod 600. In this embodiment, the elastic element 220 is a compression spring, the compression spring is sleeved outside the universal coupling shaft rod 600 in an empty manner, the annular mounting groove 430 for mounting and fixing the end of the compression spring is arranged on the opposite surface of the air intake positioning block 400 or/and the positioning seat 200, the mounting groove can prevent the compression spring from moving radially, and meanwhile, the air intake positioning block 400 surrounds the whole ball head portion 610 in the area where the acting force of the spring is applied.

Further, the bottom of the guide bottom plate 100 is connected to the upper end surface of the lower bottom plate 120 through the slide rail 110, by adopting the structure, the guide bottom plate 100 can do linear reciprocating motion, the lower bottom plate 120 is fixed on the fixing seat, when the muffler is fixed in position, when the flange is placed between the air inlet positioning block 400 and the positioning plate 300, when the universal coupling shaft rod 600 feeds, the guide bottom plate 100 is moved by acting force, so that the positioning plate 300 is further abutted to the flange positioning surface 310, and the guide bottom plate 100 can slide through the slide rail 110, so that the position can be adjusted in a self-adaptive manner.

The utility model discloses, not only confine to above-mentioned embodiment, the inside first inlet port 450 that sets up of locating piece 400 admits air, the inlet port of first inlet port 450 sets up the edge face at locating piece 400 admits air, the port of giving vent to anger of first inlet port 450 sets up on the composition surface of admitting air locating piece 400 and seal cushion 500, the last second inlet port 460 that runs through seal cushion 500 that sets up of seal cushion 500, the air inlet of second inlet port 460 and the port intercommunication of giving vent to anger of first inlet port 450, the port of giving vent to anger of second inlet port 460 sets up on seal cushion 500 is used for the sealed face with silencer flange butt joint, adopts this kind of structure, can follow the inside pressure measurement medium that provides of flange end to the silencer through fixing the air cock at the mouth end of inlet port, conveniently.

Adopt above-mentioned scheme to carry out atmospheric pressure and examine time measuring, the blast pipe of silencer is placed to open slot 320, the flange is placed when admitting air between locating piece 400 and locating plate 300, when universal shaft coupling 600 feeds, guide bottom plate 100 receives the effort and removes, further make locating plate 300 support with flange locating surface 310 and lean on, the direction bed plate can slide through slide rail 110, can self-adaptation adjustment position, locating surface 310 supports and leans on at the flange back of waiting to detect the silencer, in operation, admit air locating piece 400 and be close to the mouth of pipe of silencer, compress tightly on the mouth of pipe through the sealing member and carry out shutoff and sealed to the mouth of pipe. If the mouth of pipe slope or when not placing according to the standard position completely, air inlet locating piece 400 can be according to mouth of pipe position swing and automatic adaptation mouth of pipe angle, even and seal the mouth of pipe to the sealing member atress of swinging, can make sealing pressure more even, simultaneously, elastic element 220 can assist and exert pressure, reinforcing leakproofness adopts above-mentioned scheme, can realize that multi-angle, the undulant fault tolerance of jumbo size scope satisfy sealed the detection requirement. When the air intake positioning is retracted, the elastic element 220 can be used for righting the inclined air intake positioning at any angle. Adopt the utility model discloses, can improve the utility model discloses the fault-tolerance that multi-angle, jumbo size scope fluctuate can make the sealing pressure of sealed face disperse more, improves the sealing performance of sealed face, and the effectual convenience that improves operator's work efficiency and operation has further reduced product process cost consumption, because do not need operator's frequent adjustment simultaneously, has effectively reduced operator's intensity of labour.

Claims (10)

1. An adaptive pilot seal device, comprising a pilot base plate (100), characterized in that: the guide base plate (100) is provided with a positioning seat (200) and a positioning plate (300), one side of the positioning plate (300) facing the positioning seat (200) is provided with a positioning surface (310), the positioning plate (300) is provided with an open slot (320) penetrating through the positioning plate (300), one lateral opening end of the open slot (320) is arranged on the positioning surface (310), an air inlet positioning block (400) is arranged between the positioning seat (200) and the positioning plate (300), the side of the air inlet positioning block (400) facing the positioning plate (300) is connected with a fixed sealing cushion block (500), a universal coupling shaft rod (600) is connected between the air inlet positioning block (400) and the positioning seat (200), one end of the universal coupling shaft rod (600) is provided with a ball head part (610), the ball head part (610) extends into a hole (410) on the air inlet positioning block (400) and is in rotating fit with the hole (410), and the maximum diameter of the ball head part (610), the other end of the universal coupling shaft rod (600) is fixedly connected with a linear driving end of a linear driving device (210) on the positioning seat (200), the positioning seat (200) applies elastic pressure to the air inlet positioning block (400) through an elastic element (220), an acting area of the elastic pressure to the air inlet positioning block (400) comprises three non-collinear three stress points, and an acting point of resultant force applied to the positioning plate (300) by the spherical head portion (610) is located in a closed area formed by the end-to-end connection of the non-collinear three stress points.

2. The adaptive pilot seal assembly according to claim 1, wherein: the hole (410) comprises a three-stage stepped hole section, a large-diameter section (411) opening end of the three-stage stepped hole section faces one side of the positioning plate (300) and is locked by an internal thread fit threaded plug (414), a middle-diameter section (412) of the three-stage stepped hole section is in sliding fit with the ball head portion (610), and a universal coupling shaft rod (600) front section connected to the bottom of the ball head portion (610) extends out towards the positioning seat (200) through a small-diameter section (413) of the three-stage stepped hole section.

3. The adaptive pilot seal assembly according to claim 2, wherein: the air inlet positioning block (400) is provided with a mounting hole (420) towards one side of the sealing cushion block (500), the sealing cushion block (500) is fixedly mounted in the mounting hole (420), the bottom of the mounting hole (420) is provided with a three-stage stepped hole section, and the opening end of the large-diameter section (411) of the three-stage stepped hole section is arranged at the bottom of the mounting hole (420).

4. The adaptive pilot seal assembly according to claim 1, wherein: the elastic element (220) is a compression spring, the compression spring is sleeved outside the universal coupling shaft rod (600) in an empty mode, and annular mounting grooves (430) used for mounting and fixing the ends of the compression spring are formed in the opposite surfaces of the air inlet positioning block (400) or/and the positioning seat (200).

5. The adaptive pilot seal assembly according to claim 1, wherein: the bottom of the guide bottom plate (100) is connected to the upper end face of the lower bottom plate (120) through a slide rail (110).

6. The adaptive pilot seal assembly according to claim 1, wherein: the sealing cushion block (500) is made of a rubber pad.

7. The adaptive pilot seal assembly according to claim 1, wherein: one side, facing the positioning plate (300), of the positioning seat (200) is provided with a reinforcing rib plate (230), the vertical edge of the reinforcing rib plate (230) is fixedly connected with the positioning seat (200) through a bolt, and the horizontal edge of the reinforcing rib plate (230) is fixedly connected with the guide bottom plate (100) through a bolt.

8. The adaptive pilot seal assembly according to claim 1, wherein: the linear driving device (210) is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

9. The adaptive pilot seal assembly according to claim 1, wherein: the utility model discloses a silencer flange butt joint air inlet structure, including air inlet locating piece (400), the inside first inlet port (450) that sets up of air inlet locating piece (400), the inlet port setting of first inlet port (450) is at the edge face of air inlet locating piece (400), the outlet port setting of first inlet port (450) is on the composition surface of air inlet locating piece (400) and seal cushion block (500), set up second inlet port (460) that run through seal cushion block (500) on seal cushion block (500), the air inlet of second inlet port (460) and the outlet port intercommunication of first inlet port (450), the outlet port setting of second inlet port (460) is used for on the sealed face with silencer flange butt joint in seal cushion block (500).

10. The adaptive pilot seal assembly according to claim 1, wherein: the open slot (320) is U type groove, set up a plurality of recesses of stepping down (470) on the outer fringe of locating piece (400) admits air.

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