CN117109991A - Sealer and gas sampler - Google Patents

Abstract

The invention discloses a sealer and a gas sampler, wherein the sealer comprises a top cover, a base, an inlet, an outlet, a clamping assembly and a sealing assembly, wherein the top cover and the base are oppositely arranged in a first direction, the top cover is rotatably connected with the base around the first direction, and an inner cavity is jointly defined by the inner wall surface of the top cover and the inner wall surface of the base; the inlet and the outlet are oppositely arranged in the second direction and are communicated with the inner cavity, the clamping assembly is arranged in the inner cavity and is connected with the base, the clamping assembly comprises a clamping groove, and the clamping groove, the inlet and the outlet are sequentially arranged in the second direction to form a channel; the sealing component is arranged in the inner cavity; the top cover is provided with an opening position and a sealing position, wherein the air pipe can penetrate through the channel at the opening position, and the air flow in the air pipe can normally flow; and the air pipe penetrates through the channel at the sealing position, and the top cover rotates around the second direction by a preset angle relative to the base so that the sealing assembly bends the air pipe. The sealer provided by the embodiment of the invention has the advantage of simple sealing or opening operation.

Description

Sealer and gas sampler

Technical Field

The invention relates to the technical field of coal mine gas sampling equipment, in particular to a sealer and a gas sampler.

Background

The gas sampling bladder is formed by processing rubber, has the characteristics of uniform texture, strong plastic property, attractive and elegant appearance in making work, high sealing property and the like, and is used for sampling and detecting gas in the coal mining process, so that the content of harmful flammable gas is prevented from exceeding the standard, and the gas in a roadway is ensured to be in a safe range. In the related art, most of gas sampling tails of coal mine gas sampling bladders are rubber tubes, so that knotting operation is inconvenient, quick sealing is inconvenient, and the use effect is poor.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. For this reason, the embodiment of the invention provides a sealer with simple sealing and opening operations, and also provides a gas sampler.

The sealer of the embodiment of the invention comprises

The top cover and the base are oppositely arranged in the first direction, the top cover is rotatably connected with the base around the first direction, and the inner wall surface of the top cover and the inner wall surface of the base jointly define an inner cavity;

the inlet and the outlet are oppositely arranged in a second direction and are communicated with the inner cavity, and the second direction is orthogonal to the first direction;

the clamping assembly is arranged in the inner cavity and is connected with the base, the clamping assembly comprises a clamping groove, the clamping groove is arranged between the inlet and the outlet, and the clamping groove, the inlet and the outlet are sequentially arranged in the second direction to form a channel;

the sealing assembly is arranged in the inner cavity;

the top cover is provided with an opening position and a sealing position, wherein an air pipe can penetrate through the channel and air flow in the air pipe can normally flow;

in the sealing position, the air pipe penetrates through the channel, and the top cover rotates around the second direction by a preset angle relative to the base so that the sealing assembly bends the air pipe, and then the flow of air flow in the air pipe is blocked.

The sealer provided by the embodiment of the invention has the advantage of simple sealing or opening operation.

In some embodiments, the clamping assembly includes a first clamping member and a second clamping member, the first clamping member and the second clamping member being spaced apart to define a clamping slot, and the clamping slot having a width greater than a diameter of the trachea.

In some embodiments, the closure assembly comprises:

the first sealing piece is connected with the base;

the first bending piece is connected with the top cover and extends along the first direction, the first bending piece is arranged adjacent to the inlet, and the first bending piece and the first sealing piece are respectively positioned at two sides of the channel;

the first sealing piece and the first bending piece are arranged at intervals at the opening position;

and at the sealing position, the first bending piece is attached to the first sealing piece.

In some embodiments, the closure assembly further comprises:

the second sealing piece is connected with the base;

the second bending piece is connected with the top cover and extends along the first direction, the second bending piece is arranged adjacent to the outlet, and the second bending piece and the second sealing piece are respectively positioned at two sides of the channel;

the second sealing piece and the second bending piece are arranged at intervals at the opening position;

and at the sealing position, the second bending piece is attached to the second sealing piece.

In some embodiments, the first bending piece and the second bending piece are both provided with V-shaped surfaces, the first sealing piece and the second sealing piece are both provided with V-shaped grooves, and the V-shaped surfaces are attached to the V-shaped grooves at the sealing positions.

In some embodiments, the sealer further comprises a locking assembly comprising:

the locking block is arranged on the outer peripheral side of the base, and a locking cavity extending along the first direction is formed in the locking block;

the locking piece and the elastic piece are arranged in the locking cavity, the locking piece can slide along the first direction, one end of the elastic piece is connected with the bottom wall of the locking cavity, and the other end of the elastic piece is connected with the locking piece;

the top cover is provided with a first handle, the first handle is provided with a locking hole, and the locking piece stretches into the locking hole at the sealing position; in the open position, the locking member is separated from the locking hole.

In some embodiments, the base comprises:

the bottom plate is round;

the first peripheral wall extends along the circumference of the bottom plate, and a first inlet and a first outlet which are opposite in the radial direction of the bottom plate are arranged on the first peripheral wall.

In some embodiments, the top cover comprises:

the top plate is circular;

the second peripheral wall extends along the circumference of the top plate, the second peripheral wall is rotatably connected with the first peripheral wall, a second inlet and a second outlet which are opposite to each other in the radial direction of the bottom plate are arranged on the second peripheral wall, the first inlet and the second inlet form the inlet, and the first outlet and the second outlet form the outlet.

In some embodiments, the second inlet has a dimension in the circumferential direction of the second peripheral wall that is greater than the dimension of the first inlet in the circumferential direction of the first peripheral wall, and the second outlet has a dimension in the circumferential direction of the second peripheral wall that is greater than the dimension of the first outlet in the circumferential direction of the first peripheral wall.

The sealer of the embodiment of the invention comprises

The bladder comprises a bladder body and an air pipe, wherein a cavity is formed in the bladder body, and the air pipe is communicated with the cavity so that a gas sample can enter and exit the cavity;

a sealer according to any one of the above embodiments, the sealer cooperating with the air tube to open or close the bladder.

According to the gas sampler provided by the embodiment of the invention, the sealing device can be used for rapidly sealing or opening the bladder, so that the sampling efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of a gas sampler according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of the sealer of fig. 1.

FIG. 3 is an exploded view of a gas sampler according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic view at a in fig. 3.

Fig. 5 is a schematic structural view of the sealer according to the embodiment of the invention at another view angle.

Reference numerals:

a sealer 100; a gas pipe 101; a bladder 102;

a top cover 1; a first handle 11; a top plate 12; a second peripheral wall 13; a second inlet 131; a second outlet 132; a base 2; a second handle 21; a bottom plate 22; a first peripheral wall 23; a first inlet 231; a first outlet 232; an inlet 3; an outlet 4; a clamping assembly 5; a card slot 50; a protruding structure 501; a first clamping member 51; a second clamping member 52; a closure assembly 6; a first closure 61; a first bending piece 62; a second bending piece 64; v-shaped face 65; a V-shaped groove 66; a locking assembly 7; a lock block 71; a lock 72; a toggle part 721; an elastic member 73.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

As shown in fig. 1 to 5, the sealer 100 of the embodiment of the present invention includes a top cover 1 and a base 2, an inlet 3 and an outlet 4, a clamping assembly 5, and a sealing assembly 6.

The top cover 1 and the base 2 are oppositely arranged in a first direction, the top cover 1 is rotatably connected with the base 2 around the first direction, and an inner cavity is defined by the inner wall surface of the top cover 1 and the inner wall surface of the base 2.

The inlet 3 and the outlet 4 are oppositely arranged in a second direction and are communicated with the inner cavity, and the second direction is orthogonal to the first direction.

The clamping assembly 5 is arranged in the inner cavity and is connected with the base 2, the clamping assembly 5 comprises a clamping groove 50, the clamping groove 50 is arranged between the inlet 3 and the outlet 4, and the clamping groove 50, the inlet 3 and the outlet 4 are sequentially arranged in the second direction to form a channel.

A closure assembly 6 is disposed within the interior cavity.

The top cover 1 has an open position in which the air tube 101 can pass through the passage and the air flow in the air tube 101 can normally flow, and a closed position.

In the sealing position, the air pipe 101 penetrates through the channel, and the top cover 1 rotates around the second direction by a preset angle relative to the base 2 so that the sealing assembly 6 bends the air pipe 101, and then the flow of the air flow in the air pipe 101 is blocked.

For example, for convenience of description, the up-down direction in fig. 1 is taken as a first direction, and the left-right direction in fig. 1 is taken as a second direction.

The top cover 1 is arranged above the base 2, and the top cover 1 can rotate around the upper and lower directions relative to the base 2.

The inlet 3 and the outlet 4 are oppositely arranged in the left-right direction, wherein the positions of the inlet 3 and the outlet 4 can be designed according to the situation, for example, the inlet 3 and the outlet 4 are arranged on the base 2, or the inlet 3 and the outlet 4 are arranged on the top cover 1, or part of the inlet 3 is arranged on the base 2, the other part of the inlet 3 is arranged on the top cover 1, part of the outlet 4 is arranged on the base 2, and the other part of the outlet 4 is arranged on the top cover 1.

The clamping assembly 5 is internally provided with a clamping groove 50, the air pipe 101 can be fixed in the inner cavity by using the clamping groove 50, the inlet 3 and the outlet 4 are sequentially arranged in the second direction to form a channel, and the center line of the channel extends along the left-right direction.

The seal assembly 6 is disposed in the inner cavity, wherein the position of the seal assembly 6 can be designed according to practical situations, for example, the seal assembly 6 is connected with the top cover 1, and when the top cover 1 rotates, the top cover 1 can drive the seal assembly 6 to rotate relative to the base 2. Or a part of the seal assembly 6 is connected to the base 2, a part of the seal assembly 6 is connected to the top cover 1, and when the top cover 1 rotates, a part of the seal assembly 6 can rotate relative to another part.

The top cover 1 may be rotated by a preset angle with respect to the base 2, wherein the preset angle may be 80 degrees, 90 degrees, 100 degrees, etc., and preferably the top cover 1 may be rotated by 90 degrees with respect to the base 2.

When the sealer 100 of the embodiment of the invention works, firstly, the top cover 1 passes through the air pipe 101 from the channel at the opening position, and the air pipe 101 is in a shape like a Chinese character 'yi', and at the moment, the sealer 100 does not seal the air pipe 101, so that the air flow in the air pipe 101 can normally flow, and a gas sample is conveniently sent into the bladder.

After the gas sample is collected by the bladder, the bladder needs to be sealed, at this moment, the gas pipe 101 is fixed in the clamping groove 50 in a straight line shape, the top cover 1 is rotated by 90 degrees relative to the base 2, so that the sealing component 6 is driven to rotate relative to the base 2, or a part of the sealing component 6 is driven to rotate relative to another part, so that one part of the gas pipe 101 in the inner cavity is bent, or a plurality of parts of the gas pipe 101 in the inner cavity are bent, at this moment, the gas pipe 101 is in a fold line shape, the sealing component 6 can bend the gas pipe 101 to a degree for blocking the flow of gas in the gas pipe 101, and then the gas pipe 101 is sealed, so that the gas sample can be stored in the bladder, and the gas sample is prevented from leaking from the gas pipe 101.

After the bladder is conveyed to the sample detection chamber, the bladder needs to be opened, at the moment, the top cover 1 rotates in the opposite direction relative to the base 2, so that the top cover 1 is converted from a sealing position to an initial position, at the moment, the air pipe 101 returns to a straight shape from a fold line shape, and a gas sample in the bladder can flow into the detection equipment through the air pipe 101.

According to the sealer 100 provided by the embodiment of the invention, when the bladder is sealed or opened, the sealing operation can be completed by rotating the top cover 1, and knotting or unbinding operation on the air pipe 101 is not needed, so that the sealing and opening processes are simple to operate, and the sealing or opening efficiency is convenient to improve.

Therefore, the sealer 100 of the embodiment of the invention has the advantage of simple sealing or opening operation.

In some embodiments, as shown in fig. 4, the clamping assembly 5 includes a first clamping member 51 and a second clamping member 52, where the first clamping member 51 and the second clamping member 52 are spaced apart to define a clamping groove 50, and the width of the clamping groove 50 is greater than the diameter of the air pipe 101.

For example, as shown in fig. 4, the first clamping member 51 and the second clamping member 52 are protruding columns arranged in the base 2, the first clamping member 51 and the second clamping member 52 are arranged at intervals in the front-rear direction, the first clamping member 51, the second clamping member and the inner wall surface of the base 2 jointly form a clamping groove 50, and the width of the clamping groove 50 is larger than the diameter of the air pipe 101, so that the air pipe 101 can conveniently enter and exit the clamping groove 50, and the air pipe 101 can conveniently enter and exit the sealer 100.

Optionally, a side of the first clamping member 51 facing away from the clamping groove 50 is arc-shaped, and a side of the second clamping member 52 facing away from the clamping groove 50 is arc-shaped.

In other embodiments, the protruding structures 501 are provided on the wall surface forming the clamping groove 50 in order to increase the friction between the clamping groove 50 and the air pipe 101.

For example, the plurality of the protruding structures 501 are provided, the protruding structures 501 are provided on at least one of the first engaging piece 51, the second engaging piece 52 and the base 2, and the protruding structures 501 are provided on the wall surface of the first engaging piece 51 forming the engaging groove 50 or the wall surface of the second engaging piece 52 forming the engaging groove 50 or the wall surface of the base 2 forming the engaging groove 50. Or the wall surface of the first clamping piece 51 forming the clamping groove 50 and the wall surface of the second clamping piece 52 forming the clamping groove 50 are provided with the protruding structures 501, or the protruding structures 501 are arranged on the first clamping piece 51, the second clamping piece 52 and the base 2.

In the sealer 100 of the embodiment of the invention, when the air pipe 101 is sealed, the friction force between the air pipe 101 and the clamping assembly 5 can be increased by using the protruding structure 501, so that the air pipe 101 can be clamped in the clamping groove 50, and the air pipe 101 is prevented from falling off from the clamping groove 50, thereby facilitating the sealing operation.

Alternatively, the protruding structures 501 are rounded protrusions, and in other embodiments, the protruding structures 501 are rubber posts.

In some embodiments, as shown in fig. 4 and 5, the closure assembly 6 includes a first closure 61 and a first crimp 62.

The first closure member 61 is connected to the base 2.

The first bending piece 62 is connected to the top cover 1 and extends in the first direction, the first bending piece 62 is arranged adjacent to the inlet 3, and the first bending piece 62 and the first sealing piece 61 are respectively located at two sides of the channel.

In the open position, the first sealing member 61 is spaced apart from the first bending member 62;

in the sealing position, the first bending piece 62 is attached to the first sealing piece 61.

For example, the first sealing member 61 and the first bending member 62 extend in the vertical direction, and the first sealing member 61 and the first bending member 62 are provided with mating surfaces, and when the sealing position is reached, the two mating surfaces on the first sealing member 61 and the first bending member 62 can be bonded together.

When the sealer 100 of the embodiment of the invention works, in the open position, the air pipe 101 stretches into the channel, at this time, the first sealing member 61 and the first bending member 62 are respectively arranged at two sides of the air pipe 101, when the top cover 1 rotates from the open position to the sealed position, the first bending member 62 rotates together with the top cover 1 relative to the first sealing member 61, the first bending member 62 bends a section of the air pipe 101 near the inlet 3 relative to the clamping groove 50, and meanwhile, the pipe walls of the air pipe 101 at the bending position can be mutually close in the bending process, so that the flow passage area at the bending position is gradually reduced to a state of blocking the air flow inside the air pipe 101.

In the sealing position, the mating surface of the first bending member 62 is in contact with the mating surface of the first sealing member 61, and the air pipe 101 located between the two mating surfaces is compressed, so that the air flow passage in the air pipe 101 is blocked.

When the air is discharged, the top cover 1 is only required to be switched from the sealing position to the opening position, at the moment, the first bending piece 62 is not attached to the first sealing piece 61 any more, the air pipe 101 is restored to be in a straight shape from the broken line shape, and the air in the bladder can be discharged through the air pipe 101.

In the sealer 100 according to the embodiment of the invention, in the sealing process, on a section of the air pipe 101 adjacent to the inlet 3, one end of the air pipe 101 adjacent to the clamping groove 50 is bent, and the air pipe 101 between the first bending piece 62 and the first sealing piece 61 is compressed, so that the section of the air pipe 101 can be sealed for multiple times, and leakage of air in the air pipe 101 is avoided. And the first closing member 61 and the first bending member 62 are simple in structure. The sealing is completed by rotating the top cover 1, so that the whole sealing process is simple to operate, and the efficiency of sealing operation is improved.

In some embodiments, as shown in fig. 4 and 5, the closure assembly 6 further includes a second closure member and a second crimp member 64, the second closure member being coupled to the base 2.

The second bending member 64 is connected to the top cover 1 and extends along the first direction, the second bending member 64 is disposed adjacent to the outlet 4, and the second bending member 64 and the second sealing member are respectively located at two sides of the channel.

In the open position, the second closure element is spaced from the second crimp element 64;

in the sealing position, the second bending member 64 is attached to the second sealing member.

For example, the second sealing member and the second bending member 64 extend in the vertical direction, and the second sealing member and the second bending member 64 are provided with mating surfaces, and when the sealing position is adopted, the two mating surfaces on the second sealing member and the second bending member 64 can be bonded together.

When the sealer 100 of the embodiment of the invention works, in the open position, the air pipe 101 stretches into the channel, at this time, the second sealing member and the second bending member 64 are respectively arranged at two sides of the air pipe 101, when the top cover 1 rotates from the open position to the sealing position, the second bending member 64 rotates together with the top cover 1 relative to the second sealing member, the second bending member 64 bends a section of the air pipe 101 near the outlet 4 of the sealer 100 relative to the clamping groove 50, and meanwhile, the pipe walls of the air pipe 101 at the bending position can be mutually close in the bending process, so that the flow passage area at the bending position is gradually reduced to a state of blocking the air flow inside the air pipe 101.

In the sealing position, the mating surface of the second bending member 64 is in contact with the mating surface of the second sealing member, and at this time, the air pipe 101 located between the two mating surfaces is compressed, and the air flow passage in the air pipe 101 is blocked.

When the air is discharged, the top cover 1 is only required to be switched from the sealing position to the opening position, at the moment, the second bending piece 64 is not attached to the second sealing piece any more, the air pipe 101 is restored to be in a straight shape from the broken line shape, and the air in the bladder can be discharged through the air pipe 101.

In the sealing device 100 of the embodiment of the invention, in the sealing process, on a section of the air pipe 101 adjacent to the outlet 4 of the sealing device 100, one end of the air pipe 101 adjacent to the clamping groove 50 is bent, and the air pipe 101 between the second bending piece 64 and the second sealing piece is compressed, so that the section of the air pipe 101 can be sealed for multiple times, and the leakage of air in the air pipe 101 is avoided. And the second sealing piece and the second bending piece 64 are simple in structure, sealing is completed by rotating the top cover 1, the whole sealing process is simple to operate, and the efficiency of sealing operation is improved.

Optionally, the positions of the first bending piece 62 and the first sealing piece 61, and the positions of the second bending piece 64 and the second sealing piece need to be set according to the rotation direction of the top cover 1, but the first bending piece 62 and the first sealing piece 61 are always set at both sides of the channel, and the second bending piece 64 and the second sealing piece are always set at both sides of the channel, regardless of whether the rotation direction of the top cover 1 is counterclockwise or clockwise.

The first clamping piece 51 is disposed at the rear side of the second clamping piece 52, and when the top cover 1 rotates from the opening position to the sealing position in a clockwise direction, the first bending piece 62 and the first clamping piece 51 are both disposed at the rear side of the channel, and the first sealing piece 61 is disposed at the side of the second clamping piece 52 away from the channel, i.e. the first sealing piece 61 is disposed at the front side of the second clamping piece 52.

The second bending piece 64 and the second clamping piece 52 are both arranged at the front side of the channel, and the second sealing piece is arranged at one side of the first clamping piece 51 away from the channel, namely, the second sealing piece is arranged at the rear side of the first clamping piece 51.

In some embodiments, as shown in fig. 4 and 5, V-shaped surfaces 65 are disposed on the first bending member 62 and the second bending member 64, V-shaped grooves 66 are disposed on the first sealing member 61 and the second sealing member, and in the sealing position, the V-shaped surfaces 65 are attached to the V-shaped grooves 66.

For example, the first bending piece 62 and the second bending piece 64 are each V-shaped plates, or the first bending piece 62 and the second bending piece 64 are each triangular prisms. The first sealing piece 61 and the second sealing piece are respectively provided with a V-shaped groove 66, and the first sealing piece 61 and the second sealing piece are connected with the clamping assembly 5, so that the structural strength of the first sealing piece 61 and the second sealing piece can be improved.

According to the sealer 100 provided by the embodiment of the invention, the contact area between the sealing component 6 and the air pipe 101 can be increased by utilizing the V-shaped surface 65 and the V-shaped groove 66, and the air pipe 101 can be further bent to block the air flow in the air pipe 101, so that the tightness of the sealing position is ensured.

In some embodiments, as shown in fig. 4 and 5, the sealer 100 further includes a locking assembly 7, the locking assembly 7 including a locking block 71, a locking piece 72, and an elastic piece 73, the locking block 71 being provided at an outer circumferential side of the base 2, the locking block 71 having a locking cavity extending in a first direction therein.

The locking member 72 and the elastic member 73 are both disposed in the locking cavity, and the locking member 72 is slidable in the first direction, one end of the elastic member 73 is connected to the bottom wall of the locking cavity, and the other end of the elastic member 73 is connected to the locking member 72.

The top cover 1 is provided with a first handle 11, the first handle 11 is provided with a locking hole, and the locking piece 72 extends into the locking hole at the sealing position. In the open position, the locking member 72 is separated from the locking hole.

In the sealer 100 of the embodiment of the invention, when in a sealing position, the top cover 1 can be fixed at the sealing position by the locking component 7, so that the air pipe 101 is maintained in a sealing state, and the storage and the transportation of sample gas are convenient. When an opening is desired, the locking member 72 is moved downward to release the top cover 1 so that the top cover 1 rotates.

In other embodiments, a bar-shaped opening extending in the up-down direction is provided on one side of the locking block 71, and a toggle part 721 is provided on the locking member 72, so that the locking member 72 can be moved up and down by the toggle part 721, thereby facilitating locking and releasing of the top cover 1.

In other embodiments, the second handle 21 is provided on the outer peripheral side of the base 2, the first handle 11 and the second handle 21 each extend in the second direction, and the first handle 11 and the second handle 21 are disposed opposite to each other in the up-down direction when the top cover 1 is in the open position. When the top cover 1 needs to be rotated to the sealing position, the base 2 and the second handle 21 are held tightly, and the first handle 11 is shifted to enable the top cover 1 to rotate relative to the base 2. When the top cover 1 needs to be rotated to the initial position, the first handle 11 is shifted to the opposite direction, so that the top cover 1 rotates to the opposite direction relative to the base 2, and the opening operation can be completed.

According to the sealer 100 provided by the embodiment of the invention, the first handle 11 and the second handle 21 are arranged, so that the sealing and opening operation can be finished by one hand, the sealing and opening operation is further simplified, and the sealing and opening efficiency is improved.

In some embodiments, as shown in fig. 2, 4 and 5, the base 2 includes a bottom plate 22 and a first peripheral wall 23, the bottom plate 22 being circular.

The first peripheral wall 23 extends in the circumferential direction of the bottom plate 22, and a first inlet 231 and a first outlet 232 are provided on the first peripheral wall 23 so as to be opposed to each other in the radial direction of the bottom plate 22. The first peripheral wall 23 is annular, and the lower end of the first peripheral wall 23 is connected to the bottom plate 22. Therefore, the base 2 is simple in structure and convenient to process.

In some embodiments, as shown in fig. 4 and 5, the top cover 1 includes a top plate 12 and a second peripheral wall 13, the top plate 12 being circular.

The second peripheral wall 13 extends along the circumferential direction of the top plate 12, the second peripheral wall 13 is rotatably connected with the first peripheral wall 23, a second inlet 131 and a second outlet 132 which are opposite to each other in the radial direction of the bottom plate 22 are arranged on the second peripheral wall 13, the first inlet 231 and the second inlet 131 form an inlet 3, and the first outlet 232 and the second outlet 132 form an outlet 4. Thus, the top cover 1 has a simple structure and is convenient to process.

In some embodiments, as shown in fig. 4 and 5, the second inlet 131 has a greater dimension in the circumferential direction of the second peripheral wall 13 than the first inlet 231 has in the circumferential direction of the first peripheral wall 23, and the second outlet 132 has a greater dimension in the circumferential direction of the second peripheral wall 13 than the first outlet 232 has in the circumferential direction of the first peripheral wall 23. Thus, when the top cap 1 is moved at the sealing position and the opening position, the second outlet 132 and the second inlet 131 on the top cap 1 do not block the passage during the movement, so that the sealer 100 can be operated normally.

In other embodiments, the first peripheral wall 23 and the second peripheral wall 13 are snap-connected, and the second peripheral wall 13 is rotatably connected with the first peripheral wall 23. For example, the first peripheral wall 23 and the second peripheral wall 13 are provided with clamping parts, and the two clamping parts are in clearance fit, so that the first peripheral wall 23 and the second peripheral wall 13 are connected and do not fall off, the first peripheral wall 23 and the second peripheral wall 13 are clamped, various structures are realized, and the details are not repeated here.

The gas sampler of the embodiment of the invention comprises a bladder and a sealer 100, wherein the bladder comprises a bladder body 102 and a gas pipe 101, a cavity is arranged in the bladder body 102, and the gas pipe 101 is communicated with the cavity so as to facilitate gas samples to enter and exit the cavity. Sealer 100 is sealer 100 according to any one of the embodiments described above, sealer 100 cooperating with air tube 101 to open or close the bladder.

According to the gas sampler provided by the embodiment of the invention, the sealing device 100 can be used for rapidly sealing or opening the bladder, so that the sampling efficiency is improved.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features 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 invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.

Claims (10)

1. A sealer, characterized by comprising:

the top cover and the base are oppositely arranged in the first direction, the top cover is rotatably connected with the base around the first direction, and the inner wall surface of the top cover and the inner wall surface of the base jointly define an inner cavity;

the inlet and the outlet are oppositely arranged in a second direction and are communicated with the inner cavity, and the second direction is orthogonal to the first direction;

the clamping assembly is arranged in the inner cavity and is connected with the base, the clamping assembly comprises a clamping groove, the clamping groove is arranged between the inlet and the outlet, and the clamping groove, the inlet and the outlet are sequentially arranged in the second direction to form a channel;

the sealing assembly is arranged in the inner cavity;

the top cover is provided with an opening position and a sealing position, wherein an air pipe can penetrate through the channel and air flow in the air pipe can normally flow;

in the sealing position, the air pipe penetrates through the channel, and the top cover rotates around the second direction by a preset angle relative to the base so that the sealing assembly bends the air pipe, and then the flow of air flow in the air pipe is blocked.

2. The sealer of claim 1 wherein the clamping assembly comprises a first clamping member and a second clamping member, the first clamping member and the second clamping member being spaced apart to define a clamping slot, and wherein the clamping slot has a width greater than the diameter of the trachea.

3. The sealer of claim 2 wherein said sealer assembly comprises:

the first sealing piece is connected with the base;

the first bending piece is connected with the top cover and extends along the first direction, the first bending piece is arranged adjacent to the inlet, and the first bending piece and the first sealing piece are respectively positioned at two sides of the channel;

the first sealing piece and the first bending piece are arranged at intervals at the opening position;

and at the sealing position, the first bending piece is attached to the first sealing piece.

4. The sealer of claim 3 wherein said sealer assembly further comprises:

the second sealing piece is connected with the base;

the second bending piece is connected with the top cover and extends along the first direction, the second bending piece is arranged adjacent to the outlet, and the second bending piece and the second sealing piece are respectively positioned at two sides of the channel;

the second sealing piece and the second bending piece are arranged at intervals at the opening position;

and at the sealing position, the second bending piece is attached to the second sealing piece.

5. The sealer of claim 4 wherein said first and second folds are each provided with a V-shaped surface, said first and second seals are each provided with a V-shaped groove, and said V-shaped surfaces are in engagement with said V-shaped grooves in said sealing position.

6. The sealer of claim 5 further comprising a locking assembly comprising:

the locking block is arranged on the outer peripheral side of the base, and a locking cavity extending along the first direction is formed in the locking block;

the locking piece and the elastic piece are arranged in the locking cavity, the locking piece can slide along the first direction, one end of the elastic piece is connected with the bottom wall of the locking cavity, and the other end of the elastic piece is connected with the locking piece;

the top cover is provided with a first handle, the first handle is provided with a locking hole, and the locking piece stretches into the locking hole at the sealing position; in the open position, the locking member is separated from the locking hole.

7. The sealer according to any one of claims 1 to 6 wherein said base comprises:

the bottom plate is round;

the first peripheral wall extends along the circumference of the bottom plate, and a first inlet and a first outlet which are opposite in the radial direction of the bottom plate are arranged on the first peripheral wall.

8. The sealer of claim 7 wherein said top cover comprises:

the top plate is circular;

the second peripheral wall extends along the circumference of the top plate, the second peripheral wall is rotatably connected with the first peripheral wall, a second inlet and a second outlet which are opposite to each other in the radial direction of the bottom plate are arranged on the second peripheral wall, the first inlet and the second inlet form the inlet, and the first outlet and the second outlet form the outlet.

9. The closure of claim 8, wherein a dimension of the second inlet in a circumferential direction of the second peripheral wall is greater than a dimension of the first inlet in a circumferential direction of the first peripheral wall, and a dimension of the second outlet in a circumferential direction of the second peripheral wall is greater than a dimension of the first outlet in a circumferential direction of the first peripheral wall.

10. A gas sampler, comprising:

the bladder comprises a bladder body and an air pipe, wherein a cavity is formed in the bladder body, and the air pipe is communicated with the cavity so that a gas sample can enter and exit the cavity;

a sealer as claimed in any one of claims 1 to 9, which mates with the air tube to open or close the bladder.