CN220854264U - Pipe dimension card test sampler - Google Patents

Abstract

The application relates to a pipe dimension card test sampler which comprises a sampler body, wherein the sampler body comprises an inner pipe, an outer pipe and a stop disc, the inner pipe and the outer pipe are all arranged in a hollow mode, the diameter of the inner pipe is smaller than that of the outer pipe, the stop disc is fixedly connected with the inner pipe and the outer pipe, two groups of cutting knives are arranged between the outer pipe and the inner pipe, the cutting knives are positioned at one end, far away from the stop disc, of the outer pipe, a connecting piece is fixedly connected with the outer pipe, the connecting piece is positioned between the stop disc and the cutting knives, a vertical groove is formed in the connecting piece, the length direction of the vertical groove is axially perpendicular to the outer pipe, a knife switch is arranged in the vertical groove, the knife is in sliding connection with the inner wall of the vertical groove, an opening matched with the knife is formed in the outer pipe, and a yielding opening matched with the knife is formed in the inner pipe. The application has the effect of improving the convenience of the pipe in the Vicat softening temperature test sampling.

Description

Pipe dimension card test sampler

Technical Field

The application relates to the technical field of pipe testing sampling instruments, in particular to a pipe Vicat testing sampler.

Background

The Vicat softening test is a temperature test for measuring the temperature of a thermoplastic pipe in a specific liquid medium when a needle with the length of 1 square millimeter is pressed into the depth of 1 millimeter according to certain load and temperature conditions, and is an important item for evaluating the thermal performance of materials.

The test sample for the Vicat softening temperature test of the pipe needs to be directly taken off from the pipe, the length of the test sample is about 50 mm, the width of the test sample is 10-20 mm, and an operator needs to use a small saw blade for cutting during sampling.

To the relevant technique in the above-mentioned, the test block side department after the saw bit cutting easily has the deckle edge, needs the manual work to polish to use the saw bit sample comparatively laborious, comparatively inconvenient when carrying out the vicat softening temperature test sample to the tubular product.

Disclosure of utility model

In order to improve convenience of pipe in Vicat softening temperature test sampling, the application provides a pipe Vicat test sampler.

The application provides a pipe Vicat test sampler, which adopts the following technical scheme:

The utility model provides a tubular product dimension card test sampler, includes the sampler body, the sampler body includes inner tube, outer tube and ends the position dish, inner tube and outer tube are concentric to be set up, inner tube and outer tube all cavity setting, and the inner tube diameter is less than the outer tube diameter, end position dish and the equal fixed connection of inner tube and outer tube, be equipped with two sets of cutting knives between outer tube and the inner tube, the cutting knife is located the outer tube and keeps away from the one end of ending the position dish, outer tube fixedly connected with connecting piece, the connecting piece is located between end position dish and the cutting knife, vertical groove has been seted up to the connecting piece, vertical groove length direction sets up with outer tube axial is perpendicular, be equipped with the plug-in strip in the vertical groove, plug-in strip and vertical groove inner wall sliding connection, the opening with the plug-in strip adaptation has been seted up to the outer tube, the mouth of stepping down with the plug-in strip adaptation is seted up to the inner tube.

By adopting the technical scheme, the pipe is sleeved on the inner pipe, the pipe is attached to the inner pipe, and the pipe is pushed in the direction close to the stop disc, so that the pipe axially slides along the inner pipe. When the pipe approaches the stop plate, under the supporting action of the outer pipe, the two cutting knives cut the pipe, so that the pipe is cut into two cuts along the length direction, and a test piece is formed between the two cuts. After the tubular product is contradicted with the stop plate, press the plug blade, under the supporting role of connecting piece, the plug blade moves along vertical groove inner wall, and the plug blade moves to the mouth of stepping down by the opening to cut the tubular product along the twice incision, and then cut off the test block from the tubular product body, the test block edge after cutting is comparatively neat, need not the manual cutting through the saw bit when cutting the test block, is favorable to improving the convenience when the tubular product carries out the test of vitamin card softening temperature and takes a sample.

Optionally, the outer tube is equipped with adjusting part, adjusting part includes two movable blocks and two spacing bent plates, and two spacing bent plates are parallel to each other to all with outer tube fixed connection, the arc wall has all been seted up to two spacing bent plates, and the both ends of movable block all are fixed with the stopper that corresponds with the arc wall, stopper sliding connection in corresponding arc wall, movable block fixedly connected with connecting rod, the outer tube have been seted up with the spacing mouth of connecting rod adaptation, the connecting rod wears to establish spacing mouth and with cutting knife fixed connection.

Through adopting above-mentioned technical scheme, stopper and corresponding arc wall laminating of groove, arc bent plate are spacing to the stopper through arc wall of groove, and then make the movable block remove along the arc groove. When the moving block moves, the connecting rod is driven to move along the limiting opening, so that the limiting rod drives the corresponding cutting knife to move, and the distance between the two cutting knives can be conveniently adjusted.

Optionally, the one end fixedly connected with arc that the cutting knife kept away from the connecting rod, the inner tube is seted up and is sunk groove with the arc adaptation, arc sliding connection in sunk groove.

Through adopting above-mentioned technical scheme, arc and heavy groove inner wall laminating, heavy groove is spacing to the arc, is favorable to improving the connection stability of cutting knife.

Optionally, the spacing groove has been seted up to one side that the movable block deviates from the outer tube, and the spacing groove is located the stopper and keeps away from the one end of stopping the position dish, and sliding connection has the gag lever post in the spacing groove, and a plurality of constant head tanks with the gag lever post adaptation have been seted up to one side that the spacing bent plate is close to the movable block, are equipped with reset spring in the spacing groove, and reset spring's one end and movable block fixed connection, the other end and gag lever post fixed connection, reset spring are in compression state, have the trend that promotes the gag lever post to the constant head tank removal.

Through adopting above-mentioned technical scheme, the spacing groove inner wall is spacing to the gag lever post for the gag lever post removes along spacing groove length direction, and reset spring promotes the gag lever post and inserts in locating the constant head tank, and then makes the constant head tank and gag lever post cooperation carry out spacingly to the movable block, is favorable to making two movable blocks keep stable.

Optionally, the equal fixedly connected with sliding block in both sides of plug-in strip, the sliding tray with the sliding block adaptation is seted up to the connecting piece, and the sliding tray communicates with perpendicular groove, and sliding block sliding connection is equipped with supporting spring in the sliding tray inner wall, supporting spring's one end and sliding block fixed connection, the other end and connecting piece fixed connection, and supporting spring is in compression state, has the trend that drives the sliding block and keep away from the outer tube.

Through adopting above-mentioned technical scheme, the sliding tray is spacing to the sliding block, is favorable to reducing the probability that the plug blade slided from erecting the inslot, and supporting spring promotes the sliding block and keeps away from the outer tube for the sliding block drives the plug blade and removes to the direction of keeping away from the inner tube, is favorable to reducing the plug blade influence and promotes the probability that tubular product is close to the stop plate.

Optionally, one side that the plug-in strip is close to the position dish that ends fixedly connected with arc piece, the arc piece extends to the direction that is close to the position dish along the direction of inner tube to outer tube, the position dish that ends has seted up the discharge gate that corresponds with the plug-in strip.

Through adopting above-mentioned technical scheme, press the knife switch, cut down the back with tubular product through the knife switch for the knife switch continues to move to the mouth of stepping down, and then makes the arc piece remove to the test block, and the tip is contradicted with the test block down, promotes the test block along arc piece radian to the direction of keeping away from the knife switch, and then makes the test block shift out by the discharge gate, is favorable to improving the convenience when taking out the test block.

Optionally, the inboard sliding connection of outer tube has the semicircle pipe, ends the position dish and has seted up the arc mouth with semicircle pipe adaptation, the equal fixedly connected with guide block in both sides of semicircle pipe, the guide way with the guide block adaptation has been seted up to the outer tube, guide block sliding connection is in the guide way inner wall, semicircle pipe inboard fixedly connected with supporting shoe, semicircle pipe keeps away from and ends position dish side one end fixedly connected with push plate.

Through adopting above-mentioned technical scheme, locate the tubular product cover behind the inner tube, the tubular product excircle is contradicted with the arc piece, and the arc piece supports the tubular product, is favorable to making tubular product and inner tube be in coaxial state. The pushing plate is pushed towards the direction close to the stop disc, the pushing plate drives the semicircular tube to move, under the limiting effect of the guide groove on the guide block, the semicircular tube moves towards the stop disc along the guide groove, the tube is driven to move towards the stop plate when the pushing plate moves, one end of the semicircular tube, which is far away from the pushing plate, is penetrated out from the arc-shaped opening, and convenience in pushing the tube is improved.

Optionally, one side fixedly connected with that the plug-in strip kept away from the outer tube presses the piece, presses one side rotation that the piece deviates from the plug-in strip to be connected with the locating plate, and one side fixedly connected with rectangle piece that the connecting piece deviates from the outer tube, the draw-in groove has been seted up to the rectangle piece, and the locating plate is located the draw-in groove.

Through adopting above-mentioned technical scheme, press the briquetting and drive the plug-in strip and remove, be favorable to improving the convenience when pressing the plug-in strip. When the sampler body is not used, the knife switch is pushed into the yielding port along the vertical groove, the pressing block is pressed against the connecting piece, the positioning plate is rotated into the clamping groove, the inner wall of the clamping groove limits the knife switch, the volume of the sampler body is reduced, and the sampler is convenient to store.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The pipe is sleeved on the inner pipe, the pipe is attached to the inner pipe, and the pipe is pushed in the direction close to the stop disc, so that the pipe axially slides along the inner pipe. When the pipe approaches the stop plate, under the supporting action of the outer pipe, the two cutting knives cut the pipe, so that the pipe is cut into two cuts along the length direction, and a test piece is formed between the two cuts. After the pipe is abutted against the stop plate, the knife switch is pressed, under the supporting effect of the connecting piece, the knife switch moves along the inner wall of the vertical groove, the knife switch moves from the opening to the yielding port, and cuts the pipe along the two cuts, so that the edge of the cut test piece is tidier, the cut test piece does not need to be manually cut by a saw blade when being cut, and convenience in carrying out Vicat softening temperature test sampling on the pipe is improved;

2. The stopper is laminated with corresponding arc wall of the groove, and the arc bent plate is spacing the stopper through arc wall of the groove, and then makes the movable block remove along the arc. When the moving block moves, the connecting rod is driven to move along the limiting opening, so that the limiting rod drives the corresponding cutting knife to move, and the distance between the two cutting knives can be conveniently adjusted;

3. The limiting groove inner wall is used for limiting the limiting rod, the limiting rod moves along the length direction of the limiting groove, the reset spring pushes the limiting rod to be inserted into the positioning groove, and then the positioning groove is matched with the limiting rod to limit the moving blocks, so that the two moving blocks are kept stable.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a pipe Vicat test sampler.

Fig. 2 is a schematic view intended to highlight the internal structure of the sampler body.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is a schematic view intended to highlight the structure of the moving block.

Fig. 5 is a schematic view intended to highlight the connection of the connector to the blade.

Reference numerals illustrate: 1. a sampler body; 11. an inner tube; 111. a yielding port; 112. sinking grooves; 12. an outer tube; 121. an opening; 122. a limit opening; 123. a guide groove; 13. a stop disc; 131. a discharge port; 132. an arc-shaped opening; 14. a cutting knife; 141. an arc-shaped plate; 2. an adjustment assembly; 21. a moving block; 211. a limiting block; 212. a connecting rod; 213. a limit groove; 214. a limit rod; 215. a return spring; 22. limiting bending plates; 221. an arc-shaped groove; 222. a positioning groove; 3. a connecting piece; 31. a knife switch; 311. a sliding block; 312. an arc-shaped block; 313. pressing the blocks; 314. a positioning plate; 32. a vertical groove; 321. a sliding groove; 33. a support spring; 34. rectangular blocks; 341. a clamping groove; 4. a semicircular tube; 41. a pushing plate; 42. a guide block; 43. and a supporting block.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a pipe Vicat test sampler.

Referring to fig. 1 and 2, a pipe vicat test sampler includes a sampler body 1, the sampler body 1 including an inner pipe 11, an outer pipe 12 and a stopper disk 13. The inner tube 11 and the outer tube 12 are both coaxially fixed with the stopper disk 13, and the outer tube 12 is identical in length to the inner tube 11. The outer tube 12 is located the inner tube 11 outside to form the feed gap between outer tube 12 and the inner tube 11, operating personnel establishes tubular product cover on the inner tube 11, tubular product and the laminating of inner tube 11 excircle.

Referring to fig. 1 and 2, a semicircular tube 4 is arranged between an inner tube 11 and an outer tube 12, the semicircular tube 4 is located at one end far away from a stop disc 13, guide blocks 42 are fixed on two sides of the semicircular tube 4, two guide grooves 123 are formed in the inner wall of the outer tube 12, and the guide grooves 123 are formed along the length direction of the outer tube 12. The guide block 42 is slidably connected in the guide groove 123, and the guide groove 123 limits the guide block 42, so that the semicircular tube 4 moves towards the stop disc 13 along the guide groove 123.

Referring to fig. 1 and 2, the inner wall of the semicircular tube 4 is provided with a plurality of supporting blocks 43, the supporting blocks 43 are arc-shaped and coaxial with the semicircular tube 4, the outer circle of the tube is in contact with the supporting blocks 43, the supporting blocks 43 support and limit the tube, the tube and the inner tube 11 are further kept in a coaxial state, one end of the semicircular tube 4, which is far away from the stop disc 13, is fixed with a pushing plate 41, and an operator pushes the pushing plate 41, so that the pushing plate 41 drives the tube to move towards the stop disc 13.

Referring to fig. 1 and 3, two sets of cutting knives 14 are disposed between the inner tube 11 and the outer tube 12, the cutting knives 14 are provided with cutting edges, the cutting edges face the tube, and an operator drives the tube to approach the cutting knives 14 through a pushing plate 41, so that the cutting edges of the two cutting knives 14 cut the tube, and then cut the tube into test pieces with a certain width. The stop disc 13 is provided with an arc-shaped opening 132 (refer to fig. 2), the arc-shaped opening 132 (refer to fig. 2) is matched with the semicircular tube 4, and after the tube abuts against the stop disc 13, the semicircular tube 4 extends out of the arc-shaped opening 132 (refer to fig. 2).

Referring to fig. 1 and 3, the outer tube 12 is provided with an adjusting assembly 2, and the adjusting assembly 2 is used for adjusting the distance between the two cutting blades 14, thereby facilitating the adjustment of the width of the test piece. The adjusting component 2 comprises two moving blocks 21 and two limiting bending plates 22, wherein the two limiting bending plates 22 are provided with a certain radian, and the radian is matched with the outer circle of the outer tube 12. Two limiting bending plates 22 are fixedly connected to the outer circle of the outer tube 12 and are positioned at one end of the outer tube 12 far away from the stop disc 13. The two limiting bending plates 22 are parallel to each other, the two moving blocks 21 are located between the two limiting bending plates 22, and two ends of the moving blocks 21 are respectively attached to the two limiting bending plates 22.

Referring to fig. 1 and 3, both ends of the moving block 21 are fixed with limiting blocks 211, and one side of the two limiting bending plates 22, which is close to each other, is provided with an arc groove 221, and the limiting blocks 211 are in one-to-one correspondence with the arc grooves 221. The limiting block 211 is slidably connected in the arc-shaped groove 221, the limiting block 211 is limited by the inner wall of the arc-shaped groove 221, and an operator moves the moving block 21, so that the limiting block 211 moves along the length direction of the arc-shaped groove 221.

Referring to fig. 2 and 3, a connecting rod 212 is fixed on one side of the moving block 21, which is close to the outer tube 12, a limiting opening 122 is formed in the outer tube 12 and is matched with the connecting rod 212, the connecting rod 212 penetrates through the limiting opening 122 and is attached to the inner wall of the limiting opening 122, and the moving block 21 drives the connecting rod 212 to slide along the limiting opening 122 when moving. The connecting rod 212 is fixedly connected with one side of the cutting knife 14, which is away from the inner tube 11, and the cutting knife 14 is driven to move when the connecting rod 212 moves. The operator drives the corresponding cutting knives 14 to move by moving the moving block 21, so as to adjust the distance between the two cutting knives 14, which is beneficial to making the two cutting knives 14 suitable for cutting test pieces with different widths.

Referring to fig. 2 and 3, a limit groove 213 is formed in one side of the moving block 21 away from the outer tube 12, one end of the limit groove 213 away from the stop disc 13 penetrates through the moving block 21, a limit rod 214 is slidably connected in the limit groove 213, and the limit rod 214 is attached to the inner wall of the limit groove 213. A reset spring 215 is arranged in the limit groove 213, one end of the reset spring 215 is fixedly connected with the movable block 21, the other end of the reset spring 215 is fixedly connected with the limit rod 214, the reset spring 215 is in a compressed state, and the limit rod 214 is pushed to move in a direction away from the stop disc 13.

Referring to fig. 1 and 4, the limiting bending plate 22 far away from the stop disc 13 is provided with a plurality of positioning grooves 222, the reset spring 215 pushes the limiting rod 214 to be inserted into any positioning groove 222, the limiting rod 214 is attached to the inner wall of the positioning groove 222, and the positioning groove 222 limits the limiting rod 214, so that the movement of the moving block 21 is limited, and the corresponding cutting knife 14 is kept stable. When moving the moving block 21, the operator pushes the stopper rod 214 in a direction approaching the stopper plate 13, so that the stopper rod 214 moves out of the positioning groove 222 and compresses the return spring 215, thereby releasing the positioning of the moving block 21.

Referring to fig. 1 and 3, an arc 141 is fixed at one end of the cutter 14 away from the connecting rod 212, and the cutter 14 drives the arc 141 to move when moving, the inner tube 11 is provided with a sink 112, and the arc 141 is slidably connected in the sink 112 and is attached to the inner wall of the sink 112. The inner wall of the sinking groove 112 limits the arc-shaped plate 141, which is beneficial to improving the connection stability of the cutting knife 14 and the inner tube 11.

Referring to fig. 2 and 5, the outer tube 12 is fixed with a connector 3, the distance between the connector 3 and the stopper 13 is adapted to the length of the test piece, the connector 3 is provided with a vertical groove 32, and the length direction of the vertical groove 32 is perpendicular to the axial direction of the outer tube 12. The vertical groove 32 is slidably connected with a knife switch 31, the knife switch 31 is located above the test piece, an opening 121 matched with the knife switch 31 is formed in the outer tube 12, the lower end of the knife switch 31 penetrates through the outer tube 12 from the opening 121, and the knife switch 31 is limited by the inner wall of the vertical groove 32. When the operator presses the knife 31, the knife 31 moves along the vertical slot 32 toward the test piece, and the test piece is cut from the tube.

Referring to fig. 2 and 5, the inner tube 11 is provided with a relief opening 111, the lower end of the blade 31 cuts the test piece and then passes through the relief opening 111, and the relief opening 111 is beneficial to preventing the blade 31 from interfering with the inner tube 11. Need not go on through the saw bit when cutting the test block, be favorable to reducing the probability that the burr appears in the test block side to cut the both sides of test block simultaneously through two cutting knives 14, be favorable to improving the cutting efficiency to the test block, and make the side after the cutting keep straight, be favorable to improving the convenience when tubular product carries out the test of vicat softening temperature and takes a sample.

Referring to fig. 2 and 5, an arc block 312 is fixed on one side of the knife 31 near the stop disc 13, and when the knife 31 moves, the arc block 312 is driven to move, the lower end of the arc block 312 is near the inner tube 11, the upper end is near the outer tube 12, and the arc block 312 extends from bottom to top in a direction near the stop disc 13. After the knife 31 completes cutting the side of the test piece, the lower end part of the arc-shaped block 312 is inserted between the test piece and the knife 31, and an operator continuously presses the knife 31, so that the arc-shaped block 312 pushes the test piece in a direction close to the stop disc 13, the stop disc 13 is provided with the discharge hole 131, the arc-shaped block 312 pushes the test piece to move out from the discharge hole 131, and convenience in taking out the test piece by the operator is improved.

Referring to fig. 2 and 5, the two sides of the knife 31 along the width direction are fixed with sliding blocks 311, when the knife 31 moves, the two sliding blocks 311 are driven to move, two sliding grooves 321 matched with the sliding blocks 311 are formed in the connecting block, and the sliding grooves 321 are communicated with the vertical grooves 32. The sliding block 311 is slidably connected in the corresponding sliding groove 321, and the inner wall of the sliding groove 321 limits the sliding block 311, so that the stability of the moving of the knife 31 is improved, and the falling probability of the knife 31 from the vertical groove 32 is reduced.

Referring to fig. 2 and 5, a supporting spring 33 is provided in the sliding groove 321, the supporting spring 33 is in a compressed state, one end of the supporting spring 33 is fixedly connected with the sliding block 311, the other end is fixedly connected with the connecting block, and the supporting spring 33 has a tendency to push the sliding block 311 away from the outer tube 12. When the pipe is pushed to the stop disc 13, the supporting spring 33 drives the knife 31 to move away from the inner pipe 11 through the sliding block 311, so that the probability of the knife 31 interfering with the movement of the pipe is reduced.

Referring to fig. 2 and 5, a pressing block 313 is fixed at one side of the blade 31 far from the inner tube 11, and an operator presses the pressing block 313 in a direction close to the inner tube 11, so that the pressing block 313 drives the blade 31 to move, the pressing block 313 is beneficial to improving the contact area between the blade 31 and the palm of the operator, and improving the convenience of the operator when pressing the blade 31. One end of the pressing block 313 facing away from the knife 31 is rotatably connected to the positioning plate 314, and in an initial state, the length direction of the positioning plate 314 is parallel to the width direction of the knife 31.

Referring to fig. 2 and 5, an operator presses the pressing block 313 such that the pressing block 313 is attached to the connection block, two rectangular blocks 34 are fixed to one side of the pressing block 313 away from the outer tube 12, clamping grooves 341 are formed in one sides of the two rectangular blocks 34 close to each other, the operator rotates the positioning plate 314 such that the positioning plate 314 is perpendicular to the knife 31, and both ends of the positioning plate 314 are located in the two clamping grooves 341. When the supporting spring 33 pushes the knife 31 to move in a direction away from the inner tube 11, the inner wall of the clamping groove 341 limits the locating plate 314, so that the knife 31 is limited, the volume of the sampler body 1 is reduced, and the storage of operators is facilitated.

The implementation principle of the pipe Vicat test sampler provided by the embodiment of the application is as follows: an operator sleeves one end of the pipe on the outer side of the inner pipe 11, so that the other end of the pipe is positioned in the semicircular pipe 4, and the supporting block 43 supports the pipe, so that the pipe and the inner pipe 11 are in a coaxial state. The pushing plate 41 is pushed in the direction approaching the stop disc 13, and the pushing plate 41 drives the pipe to move towards the two cutting knives 14. After the pipe is contacted with the cutting knife 14, the cutting knife 14 cuts the pipe, and the two cutting knives 14 are matched to cut the pipe into test pieces. Continue to promote tubular product, tubular product and stop the position board and contradict the back, press knife 31 to the direction that is close to inner tube 11, connecting piece 3 is spacing knife 31 for knife 31 cuts the test block, and discharges the discharge gate 131 with the test block through arc piece 312, need not the operating personnel when cutting the test block and manually cut through the saw bit, makes the test block edge after cutting comparatively neat, is favorable to improving the convenience when tubular product carries out the test of vitamin C softening temperature and takes a sample.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (8)

1. The utility model provides a tubular product dimension card test sampler, includes sampler body (1), its characterized in that: sampler body (1) is including inner tube (11), outer tube (12) and end position dish (13), inner tube (11) and outer tube (12) are concentric to be set up, inner tube (11) and outer tube (12) all cavity setting, and inner tube (11) diameter is less than outer tube (12) diameter, end position dish (13) and inner tube (11) and outer tube (12) all fixed connection, be equipped with two sets of cutting knives (14) between outer tube (12) and inner tube (11), cutting knives (14) are located outer tube (12) and keep away from the one end of ending position dish (13), outer tube (12) fixedly connected with connecting piece (3), connecting piece (3) are located between end position dish (13) and cutting knives (14), perpendicular groove (32) have been seted up to connecting piece (3), perpendicular groove length direction (32) and outer tube (12) axial direction are perpendicular to be set up, be equipped with knife switch (31) in perpendicular groove (32), knife switch (31) and perpendicular groove (32) inner wall sliding connection, opening (121) with knife switch (31) adaptation, opening (11) are offered with knife switch (31).

2. The pipe vicat test sampler of claim 1, wherein: outer tube (12) are equipped with adjusting part (2), adjusting part (2) include two movable blocks (21) and two spacing bent plates (22), two spacing bent plates (22) are parallel to each other, and all with outer tube (12) fixed connection, arc wall (221) have all been seted up to two spacing bent plates (22), stopper (211) that correspond with arc wall (221) are all fixed with at the both ends of movable block (21), stopper (211) sliding connection is in corresponding arc wall (221) inner wall, movable block (21) fixedly connected with connecting rod (212), limit mouth (122) with connecting rod (212) adaptation are seted up to outer tube (12), limit mouth (122) and with cutting knife (14) fixed connection are worn to establish to connecting rod (212).

3. A pipe vicat test sampler according to claim 2 and wherein: one end of the cutting knife (14) far away from the connecting rod (212) is fixedly connected with an arc-shaped plate (141), the inner tube (11) is provided with a sinking groove (112) matched with the arc-shaped plate (141), and the arc-shaped plate (141) is slidably connected in the sinking groove (112).

4. A pipe vicat test sampler according to claim 2 and wherein: limiting grooves (213) are formed in one side, deviating from the outer tube (12), of the moving block (21), the limiting grooves (213) are located at one ends, far away from the stop disc (13), of limiting blocks (211), limiting rods (214) are connected in a sliding mode in the limiting grooves (213), a plurality of locating grooves (222) which are matched with the limiting rods (214) are formed in one side, close to the moving block (21), of each limiting bent plate (22), reset springs (215) are arranged in the limiting grooves (213), one ends of the reset springs (215) are fixedly connected with the moving block (21), the other ends of the reset springs (215) are fixedly connected with the limiting rods (214), and the reset springs (215) are in a compressed state and have a trend of pushing the limiting rods (214) to move towards the locating grooves (222).

5. The pipe vicat test sampler of claim 1, wherein: both sides of plug-in strip (31) all fixedly connected with sliding block (311), sliding groove (321) with sliding block (311) adaptation are seted up to connecting piece (3), sliding groove (321) and perpendicular groove (32) intercommunication, sliding block (311) sliding connection are in sliding groove (321) inner wall, be equipped with supporting spring (33) in sliding groove (321), one end and sliding block (311) fixed connection of supporting spring (33), the other end and connecting piece (3) fixed connection, supporting spring (33) are in compression state, have the trend that drives sliding block (311) and keep away from outer tube (12).

6. The pipe vicat test sampler of claim 1, wherein: one side of the knife switch (31) close to the stop disc (13) is fixedly connected with an arc block (312), the arc block (312) extends along the direction from the inner tube (11) to the outer tube (12) towards the direction close to the stop disc (13), and a discharge hole (131) corresponding to the knife switch (31) is formed in the stop disc (13).

7. The pipe vicat test sampler of claim 1, wherein: the inner side of the outer tube (12) is slidably connected with a semicircular tube (4), an arc-shaped opening (132) matched with the semicircular tube (4) is formed in the stopping disc (13), guide blocks (42) are fixedly connected to the two sides of the semicircular tube (4), a guide groove (123) matched with the guide blocks (42) is formed in the outer tube (12), the guide blocks (42) are slidably connected to the inner wall of the guide groove (123), a supporting block (43) is fixedly connected to the inner side of the semicircular tube (4), and a pushing plate (41) is fixedly connected to one end of the semicircular tube (4) far away from the side of the stopping disc (13).

8. The pipe vicat test sampler of claim 1, wherein: one side that outer tube (12) was kept away from to plug-in strip (31) is fixedly connected with presses down piece (313), presses down one side that plug-in strip (31) was kept away from to piece (313) and rotates and be connected with locating plate (314), and one side that outer tube (12) was kept away from to connecting piece (3) is fixedly connected with rectangle piece (34), and draw-in groove (341) have been seted up to rectangle piece (34), and locating plate (314) are located draw-in groove (341).