Engineering sampling device for building supervision

Abstract

The application relates to the technical field of building construction, and discloses an engineering sampling device for building supervision. A limiting sleeve is sleeved on a puncture sleeve in a sliding connection mode, a limiting groove is formed in the inner wall of the limiting sleeve, a sliding ring is slidably connected to one end inside the limiting groove, an arc-shaped groove is formed in the sliding ring, a torsion ring is rotatably connected to one side of the sliding ring, and the torsion ring is slidably connected in the limiting groove. After the sampling work is completed, the puncture sleeve is pulled out, at this time, the sliding ring moves with the puncture sleeve through friction until the torsion ring moves to one end of the limiting groove of the limiting sleeve far away from the sliding ring, when the puncture sleeve is removed from the inside of the limiting sleeve, the limiting effect of the nylon cloth being extruded by the outer wall of the puncture sleeve disappears, at this time, the arc-shaped spring is released to drive the torsion ring to rotate, and the end of the nylon cloth connected with the torsion ring is rotated, so that the middle part of the nylon cloth is folded and twisted, and thus the limiting sleeve can be blocked by the nylon cloth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to an engineering sampling device for building supervision. BACKGROUND

[0002] Building supervision sampling refers to the supervision activities of supervision personnel on the site sampling, sealing and inspection of construction units in the process of construction engineering supervision to ensure that the quality of building materials, components and the like meets the relevant specifications and design requirements. This process is of great significance to the protection of engineering quality and the prevention of the use of unqualified materials.

[0003] There are many materials used in building construction, and building construction has a large safety hazard to the surrounding environment. Therefore, the quality control of materials needs to be more strict, and various materials need to be sampled and inspected. In building construction, cement is one of the most commonly used materials and one of the basic materials. The sampling and inspection of cement is very important. When sampling and inspecting the cement in the bag, the cement in different positions of the bag needs to be sampled and inspected to ensure the quality of the cement.

[0004] The existing engineering sampling device is mostly a sampling device with a tubular structure inserted into the cement bag to sample and detect the cement in different positions of the cement bag. After the sampling device is inserted into the cement bag, a hole is left on the cement bag, and the cement in the cement bag will be spilled through the hole, which is easy to cause waste of cement and dust pollution caused by cement spilling, which has a great impact on the surrounding environment. Therefore, we propose an engineering sampling device for building supervision. SUMMARY

[0005] The purpose of the present application is to provide an engineering sampling device for building supervision to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an engineering sampling device for building supervision, comprising a puncture sleeve, one end of the puncture sleeve being a puncture end, the end face of the puncture end being a spherical surface, a sampling port A and a sampling port B being formed on the puncture sleeve, a sampling rod being rotatably connected inside the puncture sleeve, a sampling groove A being formed on one end of the sampling rod close to the sampling port A, a sampling groove B being formed on one end of the sampling rod close to the sampling port B, the sampling groove A and the sampling groove B being located above and below the sampling rod respectively, a limiting sleeve being slidably sleeved on the puncture sleeve, a limiting groove being formed on the inner wall of the limiting sleeve, one end inside the limiting groove being slidably connected with a sliding ring, an arc-shaped groove being formed on the sliding ring, the sliding ring being rotatably connected with a torsion ring on one side, the torsion ring being slidably connected in the limiting groove, the torsion ring being slidably connected with the arc-shaped groove on the sliding ring, an arc-shaped spring being installed in the arc-shaped groove on the sliding ring, one end of the arc-shaped spring being connected with the torsion ring, a nylon cloth being fixedly connected with the torsion ring on one side, and the nylon cloth being fixedly connected with the limiting sleeve away from the torsion ring.

[0007] As preferred, the outer wall of the limiting sleeve is circumferentially provided with a plurality of fixing frames, each of which is provided with a receiving groove, and a limiting cone is rotatably connected in the receiving groove, and one end of the limiting cone connected with the receiving groove is fixedly connected with a limiting block.

[0008] As preferred, the inner side of the opposite side of the two same-side fixing frames is provided with a transmission groove, the fixing frame is provided with a sliding groove in communication with the transmission groove, and the opposite side of the two same-side fixing frames is provided with a communication port in communication with the sliding groove.

[0009] As preferred, each transmission groove is rotatably connected with a ratchet gear, each ratchet gear is fixedly connected with the shaft end of the limiting cone on the same side, a transmission rod is slidably connected in the sliding groove, a stop block is fixedly connected to one end of the transmission rod close to the ratchet gear, and a limiting spring is fixedly connected between the other end of the transmission rod away from the stop block and the inner wall of the sliding groove.

[0010] As preferred, the stop block and the ratchet gear are meshed with each other, a control plate is fixedly connected to the transmission rod through the communication port, and the control plate is attached to the outer wall of the fixing frame.

[0011] As preferred, each fixing frame is fixedly connected with a sliding rail frame in communication with the receiving groove, the two same-side sliding rail frames are fixedly connected with a baffle, the two same-side sliding rail frames are slidably connected with a limiting frame, and a plurality of fixed springs are fixedly connected between the limiting frame and the baffle on the same side.

[0012] As preferred, one side of the limiting cone is ratchet-shaped, and a sawtooth strip is fixedly connected on one side of the limiting frame in a mirror image, and the sawtooth strip cooperates with the ratchet side of the limiting cone.

[0013] As preferred, the length of the receiving groove is greater than the length of the limiting block, the length of the limiting cone is greater than the length of the receiving groove, and the limiting block and the limiting cone form an L-shaped structure.

[0014] As preferred, the puncture sleeve is fixedly connected with a limiting ring at one end away from the puncture end, the puncture sleeve is provided with an indication groove at one end away from the puncture end, and the indication groove is on the same side as the sampling port A and the sampling port B.

[0015] As preferred, the sampling rod is fixedly connected with a handle at one end away from the puncture sleeve, the sampling rod is fixedly connected with an indicating needle, the indicating needle is above the indication groove, and the indicating needle is on the same side as the sampling groove B.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The present application inserts the limiting sleeve into the cement bag along with the puncture sleeve when sampling, after sampling is completed, the puncture sleeve is pulled out, the slip ring moves along with the puncture sleeve through friction, until the torsion ring moves to the end of the limiting groove of the limiting sleeve away from the slip ring, the slip ring and the torsion ring are limited by the limiting sleeve, when the puncture sleeve is removed from the inside of the limiting sleeve, the nylon cloth is extruded and limited by the outer wall of the puncture sleeve, the nylon cloth is no longer limited by the torsion ring and the arc spring, the arc spring is released to drive the torsion ring to rotate, so that one end of the nylon cloth connected with the torsion ring rotates, the middle part of the nylon cloth is folded and twisted, and the two ends of the nylon cloth present a trumpet-shaped depression, so that the limiting sleeve is blocked by the nylon cloth;

[0018] After the limiting sleeve is inserted into the cement bag, the limiting cone column pierces the cement bag, and continuously penetrates into the cement bag along with the limiting cone column, at this time, the cement bag around the limiting cone column is extruded to make the limiting cone column rotate, the limiting cone column is transversely arranged in the cement bag, the limiting sleeve is limited by the limiting cone column, and the limiting sleeve is retained in the hole of the cement bag, so that the problem that the limiting sleeve falls off from the hole of the cement bag due to the pressure of the cement in the cement bag is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the whole application;

[0020] Figure 2 It is a structural schematic diagram of the puncture sleeve in the application;

[0021] Figure 3 It is a structural schematic diagram of the top of the sampling rod in the application;

[0022] Figure 4 It is a structural schematic diagram of the sampling groove A in the application;

[0023] Figure 5 It is a structural schematic diagram of the limiting sleeve in the application;

[0024] Figure 6 It is a sectional structural schematic diagram of the limiting sleeve in the application;

[0025] Figure 7 It is a sectional structural schematic diagram of the slip ring in the application;

[0026] Figure 8 It is a connection structural schematic diagram of the fixed frame and the slide rail frame in the application;

[0027] Figure 9 It is a structural schematic diagram of the fixed frame in the application;

[0028] Figure 10 It is a sectional structural schematic diagram of the fixed frame in the application;

[0029] Figure 11For Figure 10 Enlarged structure schematic diagram at middle A;

[0030] Figure 12 For the structure schematic diagram of the bottom of the transmission rod in the application.

[0031] In the figure: 1, puncture sleeve; 11, sampling port A; 12, sampling port B; 13, limiting ring; 14, indicating groove; 2, sampling rod; 21, sampling groove A; 22, sampling groove B; 23, handle; 24, indicating needle; 3, limiting sleeve; 31, sliding ring; 32, torsion ring; 33, arc spring; 34, nylon cloth; 4, fixed frame; 41, storage groove; 42, limiting conical column; 43, limiting block; 5, transmission groove; 51, sliding groove; 52, communication port; 6, ratchet gear; 61, transmission rod; 62, stop block; 63, limiting spring; 64, control board; 7, sliding rail frame; 71, baffle; 72, limiting frame; 73, fixed spring; 74, sawtooth rack. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the application.

[0033] Please refer to Figures 1-12The application provides a technical scheme: a construction supervision engineering sampling device, which comprises a puncture sleeve 1, the puncture sleeve 1 has a puncture end at one end, the puncture end can penetrate a cement bag, the end face of the puncture end is a spherical surface with a diameter of 1 mm, sampling ports A11 and B12 are respectively arranged on the puncture sleeve 1, a sampling rod 2 is rotationally connected in the puncture sleeve 1, a sampling groove A21 is arranged at one end of the sampling rod 2 close to the sampling port A11, a sampling groove B22 is arranged at one end of the sampling rod 2 close to the sampling port B12, the opening size of the sampling groove A21 and the sampling groove B22 is the same as that of the sampling port A11 and the sampling port B12, the sampling groove A21 and the sampling groove B22 are respectively located above and below the sampling rod 2, an indicating groove 14 is arranged at one end of the puncture sleeve 1 away from the puncture end, the indicating groove 14 is located on the same side of the sampling port A11 and the sampling port B12, a handle 23 is fixedly connected to one end of the sampling rod 2 away from the puncture sleeve 1, an indicating needle 24 is fixedly connected to the sampling rod 2, when the sampling rod 2 is rotated, the rotation angle of the sampling rod 2 is determined through the angle between the indicating needle 24 and the indicating groove 14, so that the worker cannot know the specific angle of the sampling rod 2 when the sampling rod 2 is rotated, the sampling groove A21 and the sampling groove B22 cannot be in communication with the sampling port A11 and the sampling port B12, the indicating needle 24 is located above the indicating groove 14, and the indicating needle 24 is located on the same side of the sampling groove B22.

[0034] Further, when sampling the cement, the sampling rod 2 is inserted into the puncture sleeve 1, the indicator 24 is aligned with the indicating slot 14, at this time the sampling groove A 21 is in contact with the inner bottom wall of the puncture sleeve 1, and the sampling groove B 22 is in communication with the sampling port B 12 of the puncture sleeve 1, then the puncture end of the puncture sleeve 1 is used to insert the entire puncture sleeve 1 into the bag containing the cement, and ensure that the sampling port A 11 and the sampling port B 12 are inserted into the cement bag, when the sampling port B 12 enters the cement bag, the cement enters the sampling groove B 22 through the sampling port B 12, then the sampling rod 2 is rotated by the handle 23, according to the auxiliary indication of the indicator 24, the sampling rod 2 is rotated 180°, the sampling groove A 21 is in communication with the sampling port A 11, and the sampling groove B 22 is in contact with the inner bottom wall of the puncture sleeve 1, the cement in the sampling groove B 22 is temporarily stored, when the sampling groove A 21 is in communication with the sampling port A 11, the cement in the cement bag enters the sampling groove A 21 through the sampling port A 11, then the sampling rod 2 is rotated 90° by the handle 23, at this time the sampling groove A 21 and the sampling groove B 22 are respectively in contact with the inner walls of both sides of the puncture sleeve 1, and store the cement inside, then the puncture sleeve 1 can be pulled out, the sampling rod 2 is rotated, the sampling groove A 21 and the sampling groove B 22 are aligned with the sampling port A 11 and the sampling port B 12 in turn, and the cement in the sampling groove A 21 and the sampling groove B 22 is poured out, at this time the cement in the sampling groove A 21 and the sampling groove B 22 can be detected, so that the cement in different positions of the cement bag can be inspected.

[0035] The accompanying drawings are incorporated in and constitute a part of this specification. Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the puncture sleeve 1 is sleeved with a slidingly connected limiting sleeve 3, a limiting groove is formed in the inner wall of the limiting sleeve 3, and a sliding ring 31 is slidingly connected to one end inside the limiting groove. The inner wall of the sliding ring 31 has a large friction coefficient, which can move with the puncture sleeve 1 through friction when the puncture sleeve 1 is inserted into the limiting sleeve 3. An arc-shaped groove is formed on one side of the sliding ring 31, and a torsion ring 32 is rotatably connected to the same side of the sliding ring 31. The torsion ring 32 is slidingly connected in the limiting groove, and is slidingly connected in the arc-shaped groove of the sliding ring 31. The maximum angle of rotation of the torsion ring 32 on the sliding ring 31 is 180°, and an arc-shaped spring 33 is arranged between the torsion ring 32 and the arc-shaped groove of the sliding ring 31. The arc-shaped spring 33 is kept in a compressed state. A nylon cloth 34 is fixedly connected between the torsion ring 32 and the limiting sleeve 3. The nylon cloth 34 is cylindrical and has good corrosion resistance and wear resistance. When the puncture sleeve 1 does not pass through the limiting sleeve 3, the arc-shaped spring 33 will release and press the torsion ring 32, so that the torsion ring 32 is kept at one end of the arc-shaped groove of the sliding ring 31, so that the end of the nylon cloth 34 connected with the torsion ring 32 rotates, and the middle part of the nylon cloth 34 is folded and twisted, and the two ends are concave and have a horn shape. The nylon cloth 34 in this state can seal the limiting sleeve 3, thereby preventing the cement from spilling out, thereby improving the sealing effect of the limiting sleeve 3. Since the maximum angle of rotation of the torsion ring 32 on the sliding ring 31 is 180°, the torsion tension of the nylon cloth 34 is uniformly distributed, and the nylon cloth 34 will not be twisted into a bundle and bent. The twisting center of the nylon cloth 34 is always on the axis of the nylon cloth 34, so that when the puncture end of the puncture sleeve 1 is inserted into the limiting sleeve 3, the twisting center of the nylon cloth 34 can be aligned. When the puncture sleeve 1 passes through the limiting sleeve 3, the puncture sleeve 1 extrudes the nylon cloth 34, so that the middle part of the nylon cloth 34 cannot be twisted. One end of the puncture sleeve 1 away from the puncture end is fixedly connected with a limiting ring 13. The limiting ring 13 limits the position of the limiting sleeve 3 on the puncture sleeve 1, so that after the puncture sleeve 1 is inserted into the cement bag, the limiting sleeve 3 is more smoothly inserted into the cement bag through the limiting effect of the limiting ring 13.Further, when the puncture sleeve 1 is inserted into the cement bag, the limiting sleeve 3 is also inserted into the cement bag, and when the puncture sleeve 1 is pulled out of the limiting sleeve 3, at this time the sliding ring 31 moves with the puncture sleeve 1 through the friction force, the sliding ring 31 drives the torsion ring 32 to move in the limiting groove of the limiting sleeve 3, until the torsion ring 32 moves to one end of the limiting groove of the limiting sleeve 3, at this time the sliding ring 31 and the torsion ring 32 are limited by the limiting sleeve 3, the sliding ring 31 no longer moves, and the movement of the torsion ring 32 causes the longitudinal deformation of the nylon cloth 34, and after the puncture sleeve 1 is removed from the inside of the limiting sleeve 3, the limiting effect of the nylon cloth 34 being extruded by the outer wall of the puncture sleeve 1 disappears, so that the nylon cloth 34 is no longer limited by the torsion ring 32 and the arc-shaped spring 33, at this time the arc-shaped spring 33 is released to drive the torsion ring 32 to rotate, and the end of the nylon cloth 34 connected with the torsion ring 32 rotates, and then the middle part of the nylon cloth 34 is folded and twisted, and the two ends of the nylon cloth 34 present a trumpet-shaped recess, so that the limiting sleeve 3 can be blocked by the nylon cloth 34, and it is worth noting that before the middle part of the nylon cloth 34 is twisted, the longitudinal deformation of the nylon cloth 34 caused by the movement of the torsion ring 32 can improve the blocking effect of the limiting sleeve 3 when the middle part of the nylon cloth 34 is twisted, thereby avoiding the problem that the cement in the cement bag is spilled through the hole left by sampling after the sampling device completes sampling, and after the cement in the cement bag is used, the limiting sleeve 3 is removed from the cement bag, and then the limiting sleeve 3 is sleeved on the puncture sleeve 1 again and is attached to the limiting ring 13, and when the puncture sleeve 1 is inserted into the limiting sleeve 3, since the two ends of the nylon cloth 34 present a trumpet-shaped recess at this time, the puncture end of the puncture sleeve 1 contacts the trumpet-shaped recess of one end of the nylon cloth 34 and extrudes the nylon cloth 34 through the recess, and in addition, it is worth noting that the worker also reverses the nylon cloth 34 by 30° / 60° along the spiral direction of the nylon cloth 34, so that the friction force caused by the extrusion of the nylon cloth 34 by the puncture sleeve 1 drives the nylon cloth 34 to twist and generate tension, the nylon cloth 34 drives the torsion ring 32 to rotate through the tension caused by the twisting, and then the torsion ring 32 compresses the arc-shaped spring 33, until the puncture sleeve 1 passes through the nylon cloth 34, at this time the puncture sleeve 1 no longer applies pressure to the nylon cloth 34, and the pressure of the arc-shaped spring 33 causes the nylon cloth 34 to extrude the outer wall of the puncture sleeve 1 through the torsion ring 32, so as to block the puncture sleeve 1, which is convenient for use next time.

[0036] Combining the drawings Figure 5 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, the side of the limiting sleeve 3 is circumferentially distributed and fixedly connected with several fixed frames 4, the receiving groove 41 is arranged on each fixed frame 4, the limiting cone column 42 is rotatably connected in the receiving groove 41, the limiting cone column 42 tail end side is fixedly connected with the limiting block 43, the limiting block 43 is provided with a chamfer, which is convenient for adjusting the angle of the limiting cone column 42 when the limiting block 43 is extruded, the length of the receiving groove 41 is greater than the length of the limiting block 43, the length of the limiting cone column 42 is greater than the length of the receiving groove 41, the limiting block 43 and the limiting cone column 42 are in "L" shape structure, through the design of "L" shape structure, it can be ensured that after the limiting block 43 rotates into the receiving groove 41, the limiting cone column 42 is in the state of being horizontally in the cement bag, so that the limiting cone column 42 is easy to insert into the cement bag and difficult to separate from the cement bag, which is convenient for the limiting cone column 42 to better complete the limiting work of the limiting sleeve 3, the transmission groove 5 is arranged in the opposite side of the two same side fixed frames 4, the sliding groove 51 is arranged in the fixed frame 4 and communicates with the transmission groove 5, the communication port 52 is arranged in the opposite side of the two same side fixed frames 4 and communicates with the sliding groove 51, the ratchet gear 6 is rotatably connected in each transmission groove 5, the ratchet gear 6 is fixedly connected with the shaft end of the limiting cone column 42 on the same side, the transmission rod 61 is slidably connected in the sliding groove 51, the end of the transmission rod 61 close to the ratchet gear 6 is fixedly connected with the block 62, the end of the transmission rod 61 away from the block 62 is fixedly connected with the limiting spring 63 between the inner wall of the sliding groove 51, the block 62 and the tooth block of the ratchet gear 6 are meshed with each other, the control plate 64 is fixedly connected on the transmission rod 61 through the communication port 52, the control plate 64 and the outer wall of the fixed frame 4 are mutually attached, since the control plate 64 and the outer wall of the fixed frame 4 are attached, and the area of the control plate 64 is larger, therefore, the control plate 64 can not only control and move the transmission rod 61, but also can block the communication port 52, so as to avoid the problem that the cement in the cement bag easily enters the transmission groove 5 and the sliding groove 51 through the communication port 52 after the fixed frame 4 is inserted into the cement bag, which affects the meshing effect of the ratchet gear 6 and the block 62.

[0037] Further, after the limiting sleeve 3 is inserted into the cement bag, the limiting cone column 42 will pierce the cement bag. As the limiting sleeve 3 continuously penetrates into the cement bag, the cement bag on the side of the limiting cone column 42 will press the limiting block 43, so that the limiting cone column 42 rotates. At this time, the limiting cone column 42 is transverse in the cement bag, and limits the limiting sleeve 3, so that the limiting sleeve 3 is more stably retained in the hole of the cement bag. In the process of rotation of the limiting cone column 42, the limiting cone column 42 drives the ratchet gear 6 connected thereto to rotate. In the process of rotation of the ratchet gear 6, the inclined surface on the tooth block of the ratchet gear 6 will generate a pressing force on the inclined surface of the stop block 62. Through the cooperation of the two inclined surfaces, the direction of the pressing force is changed, so as to push the stop block 62 and the transmission rod 61 to slide into the sliding groove 51. When the transmission rod 61 slides into the sliding groove 51, the limiting spring 63 is pressed, so that it shrinks. When the tooth block of the ratchet gear 6 in contact with the stop block 62 passes the stop block 62, the pressing force on the stop block 62 disappears. At this time, the limiting spring 63 starts to rebound, drives the transmission rod 61 and the stop block 62 to move towards the ratchet gear 6, so as to ensure that the stop block 62 is clamped between the tooth blocks of the ratchet gear 6. Since the tooth block of the ratchet gear 6 and the other side of the stop block 62 are both flat surfaces, when the limiting cone column 42 rotates, the flat surfaces of the tooth block of the ratchet gear 6 and the stop block 62 are in contact. At this time, the tooth block of the ratchet gear 6 cannot change the direction of the pressing force with the stop block 62, so as to displace the stop block 62. At this time, the stop block 62 limits the ratchet gear 6, so as to limit the limiting cone column 42. The pressure of the cement in the cement bag on the limiting sleeve 3 is avoided, so as to cause the limiting cone column 42 to rotate by itself, thereby affecting the limiting effect of the limiting cone column 42 and improving the stability of the state of the limiting cone column 42 transverse in the cement bag.

[0038] Combining the drawings Figure 8 As shown in the drawings, each fixed frame 4 is fixedly connected with a sliding rail frame 7 which is in communication with the storage groove 41. The sliding rail frames 7 on the same side are fixedly connected with a baffle 71. The sliding rail frames 7 on the same side are slidingly connected with a limiting frame 72. The limiting frame 72 is fixedly connected with a plurality of fixed springs 73 between the baffle 71 on the same side.

[0039] Combining the drawings Figure 8 As shown in the drawings, one side of the limiting cone column 42 is ratchet-shaped. The limiting frame 72 is fixedly connected with a sawtooth strip 74 on one side in a mirror image. The sawtooth strip 74 corresponds to the limiting cone column 42 one by one, and cooperates with the ratchet side of the limiting cone column 42.

[0040] Further, manually extrude the limiting frame 72, the limiting frame 72 will compress the fixed spring 73, and the two ends of the limiting frame 72 are inserted into the receiving groove 41 of the fixed frame 4, at the same time, the rack 74 is moved, the two ends of the limiting frame 72 push the limiting block 43, so that the limiting cone column 42 rotates, the limiting cone column 42 rotates to close to the cement bag, and the ratchet side of the limiting cone column 42 contacts the cement bag, and then the limiting cone column 42 rotates to separate the ratchet side of the limiting cone column 42 from the cement bag and cooperates with the rack 74, the cement bag is clamped by the ratchet side of the limiting cone column 42 and the rack 74, thereby further limiting the limiting sleeve 3.

[0041] Further, when the limiting sleeve 3 is recycled, the transmission rod 61 is moved by operating the plate 64, the transmission rod 61 extrudes the limiting spring 63, and the stop block 62 is retracted into the sliding groove 51, at this time, the extrusion of the ratchet wheel 6 disappears, then the limiting sleeve 3 is pulled out, and the limiting cone column 42 rotates slightly under the limitation of the cement bag, so that the limiting cone column 42 no longer limits the rack 74, the fixed spring 73 releases the limiting frame 72 and synchronously moves the rack 74, then the limiting sleeve 3 is pulled out from the cement bag, and the limiting cone column 42 is synchronously moved by the fixed frame 4, at the same time, the limiting cone column 42 rotates under the limitation of the cement bag, and the limiting cone column 42 rotates after the fixed frame 4 and the limiting sleeve 3 are extracted from the cement bag, when the limiting cone column 42 is extracted from the cement bag, the limiting frame 72 is manually extruded, and the two ends of the limiting frame 72 are inserted into the receiving groove 41 of the fixed frame 4 again, so as to push the chamfered portion of the limiting block 43 and make the limiting cone column 42 rotate back to the original position, in the process of pushing the limiting frame 72, the limiting frame 72 extrudes the fixed spring 73 and makes it retract, when the limiting cone column 42 rotates back to the original position, the limiting frame 72 is released, at this time, the fixed spring 73 rebounds and can drive the limiting frame 72 back to the original position, then the operating plate 64 is released, the transmission rod 61 and the stop block 62 are moved by the rebound force of the limiting spring 63, the stop block 62 is reinserted between the tooth blocks of the ratchet wheel 6, and the ratchet wheel 6 and the limiting cone column 42 are limited, so as to ensure that the limiting cone column 42 does not rotate due to the shaking of the worker in the process of taking the sampling device, and cannot smoothly pierce the cement bag.

[0042] Working principle:

[0043] When sampling the cement, the sampling rod 2 is inserted into the puncture sleeve 1, the indicating needle 24 is aligned with the indicating slot 14, the sampling slot A 21 is attached to the inner bottom wall of the puncture sleeve 1, the sampling slot B 22 is communicated with the sampling port B 12 of the puncture sleeve 1, the puncture end of the puncture sleeve 1 is used to insert the whole puncture sleeve 1 into the bag containing the cement, to ensure that the sampling port A 11 and the sampling port B 12 are both inserted into the cement bag, when the sampling port B 12 enters the cement bag, the cement enters the sampling slot B 22 through the sampling port B 12, the sampling rod 2 is rotated 180° by rotating the handle 23, according to the auxiliary indication of the indicating needle 24, the sampling slot A 21 is communicated with the sampling port A 11, the sampling slot B 22 is attached to the inner bottom wall of the puncture sleeve 1 to temporarily store the cement in the sampling slot B 22, when the sampling slot A 21 is communicated with the sampling port A 11, the cement in the cement bag enters the sampling slot A 21 through the sampling port A 11, then the sampling rod 2 is rotated 90° by rotating the handle 23, at this time, the sampling slot A 21 and the sampling slot B 22 are respectively attached to the two inner walls of the puncture sleeve 1 to store the cement in the inner part, the puncture sleeve 1 is pulled out, the sampling rod 2 is rotated to align the sampling slot A 21 and the sampling slot B 22 with the sampling port A 11 and the sampling port B 12 in turn, the cement in the sampling slot A 21 and the sampling slot B 22 is poured out, the cement in the sampling slot A 21 and the sampling slot B 22 is detected, thereby the cement in different positions of the cement bag is checked.

[0044] In the process, when the puncture sleeve 1 is inserted into the cement bag, the limiting sleeve 3 is inserted into the cement bag, and the limiting cone column 42 pierces the cement bag after the limiting sleeve 3 is inserted into the cement bag. As the limiting sleeve 3 continuously penetrates into the cement bag, the cement bag on the side of the limiting cone column 42 is extruded to the limiting block 43, so that the limiting cone column 42 rotates. At this time, the limiting cone column 42 is transversely arranged in the cement bag, and the limiting sleeve 3 is limited, so that the limiting sleeve 3 is more stably retained in the hole of the cement bag. At this time, the limiting frame 72 is manually extruded, the limiting frame 72 is compressed, the fixed spring 73 is compressed, and the both ends of the limiting frame 72 are inserted into the receiving groove 41 of the fixed frame 4. At the same time, the sawtooth strip 74 is moved, the both ends of the limiting frame 72 push the limiting block 43, the limiting cone column 42 rotates, the limiting cone column 42 rotates to the cement bag, the ratchet side of the limiting cone column 42 contacts the cement bag, and then the limiting cone column 42 rotates to separate the ratchet side of the limiting cone column 42 from the cement bag and cooperate with the sawtooth strip 74. The cement bag is clamped by the ratchet side of the limiting cone column 42 and the sawtooth strip 74, so that the limiting sleeve 3 is further limited. In the process of rotating the limiting cone column 42, the limiting cone column 42 drives the ratchet gear 6 connected thereto to rotate. In the process of rotating the ratchet gear 6, the inclined surface on the tooth block of the ratchet gear 6 extrudes the inclined surface of the stop block 62, so that the direction of the extrusion force is changed through the cooperation of the two inclined surfaces, thereby pushing the stop block 62 and the transmission rod 61 to slide into the sliding groove 51. When the transmission rod 61 slides into the sliding groove 51, the limiting spring 63 is extruded, so that it is contracted. When the tooth block of the ratchet gear 6 in contact with the stop block 62 passes the stop block 62, the extrusion force received by the stop block 62 disappears. At this time, the limiting spring 63 starts to rebound, drives the transmission rod 61 and the stop block 62 to move towards the ratchet gear 6, and ensures that the stop block 62 is clamped between the tooth blocks of the ratchet gear 6. Since the tooth block of the ratchet gear 6 and the other surface of the stop block 62 are both flat surfaces, when the limiting cone column 42 rotates, the tooth block of the ratchet gear 6 cannot pass through the flat surface of the stop block 62 to change the direction of the extrusion force between the tooth block and the stop block 62, so that the stop block 62 cannot be displaced. The stop block 62 can limit the ratchet gear 6, thereby limiting the limiting cone column 42.

[0045] When the sampling work is finished, the puncture sleeve 1 is pulled out, the limiting sleeve 3 is retained in the hole left by the puncture sleeve 1 when it is inserted into the cement bag, when the puncture sleeve 1 is pulled out from the limiting sleeve 3, at this time the sliding ring 31 moves with the puncture sleeve 1 by friction, the sliding ring 31 drives the torsion ring 32 to move in the limiting groove of the limiting sleeve 3, until the torsion ring 32 moves to the end of the limiting groove of the limiting sleeve 3 far away from the sliding ring 31, at this time the sliding ring 31 and the torsion ring 32 are limited by the limiting sleeve 3, the sliding ring 31 no longer moves, the torsion ring 32 moves to make the nylon cloth 34 longitudinally deform, when the puncture sleeve 1 moves out from the inside of the limiting sleeve 3, the nylon cloth 34 is extruded and limited by the outer wall of the puncture sleeve 1 and disappears, so that the nylon cloth 34 no longer is limited by the torsion ring 32 and the arc-shaped spring 33, at this time the arc-shaped spring 33 is released to drive the torsion ring 32 to rotate, and make the end of the nylon cloth 34 connected with the torsion ring 32 rotate, and further make the middle part of the nylon cloth 34 fold and twist, and the two ends thereof present a trumpet-shaped concave, thereby the limiting sleeve 3 is blocked by the nylon cloth 34.

[0046] After the cement in the cement bag is used, the limiting sleeve 3 is recycled. When the limiting sleeve 3 is recycled, the transmission rod 61 is moved by the control board 64 to extrude the limiting spring 63, so that the stop block 62 is retracted into the sliding groove 51. At this time, the extrusion of the ratchet gear 6 disappears, and then the limiting sleeve 3 is pulled out lightly. The limiting taper column 42 is slightly rotated under the limitation of the cement bag, the limiting taper column 42 no longer limits the sawtooth strip 74, the fixed spring 73 releases the pushing of the limiting frame 72 to move, and synchronously moves the sawtooth strip 74. Then the limiting sleeve 3 is pulled out from the cement bag, and the limiting taper column 42 is synchronously moved with the fixed frame 4 and the limiting sleeve 3. At the same time, the limiting taper column 42 rotates under the limitation of the cement bag. After the limiting taper column 42 rotates, it is extracted from the cement bag together with the fixed frame 4 and the limiting sleeve 3. When the limiting taper column 42 is extracted from the cement bag, the limiting frame 72 is manually extruded, so that the two ends of the limiting frame 72 are inserted into the storage groove 41 of the fixed frame 4 again. In this way, the chamfer of the limiting block 43 is pushed, so that the limiting taper column 42 rotates back to the original position. In the process of pushing the limiting frame 72, the limiting frame 72 extrudes the fixed spring 73, so that it is retracted. When the limiting taper column 42 rotates back to the original position, the limiting frame 72 is released, and the fixed spring 73 rebounds to drive the limiting frame 72 back to the original position. Then the control board 64 is released, and the rebounding force of the limiting spring 63 drives the transmission rod 61 and the stop block 62 to move, so that the stop block 62 is reinserted between the tooth blocks of the ratchet gear 6, and the ratchet gear 6 and the limiting taper column 42 are limited. The limiting sleeve 3 is removed from the cement bag, and then the limiting sleeve 3 is sleeved on the puncture sleeve 1 again and is in contact with the limiting ring 13. When the puncture sleeve 1 is inserted into the limiting sleeve 3, the puncture end of the puncture sleeve 1 is in contact with the trumpet-shaped recess at one end of the nylon cloth 34, and the nylon cloth 34 is extruded through the recess. In addition, it is worth noting that the worker will also rotate the nylon cloth 34 in the opposite direction by 30°~60° along the spiral direction, so that the friction force generated by the extrusion of the puncture sleeve 1 on the nylon cloth 34 drives the nylon cloth 34 to twist and generate tension. The nylon cloth 34 twists and drives the torsion ring 32 to rotate, and then the torsion ring 32 compresses the arc-shaped spring 33 until the puncture sleeve 1 passes through the nylon cloth 34. At this time, the puncture sleeve 1 no longer applies pressure to the nylon cloth 34, and the pressure of the arc-shaped spring 33 makes the torsion ring 32 extrude the nylon cloth 34 to the outer wall of the puncture sleeve 1, so as to realize the sealing of the nylon cloth 34 on the puncture sleeve 1, which is convenient for next use.

[0047] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0048] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. An engineering sampling device for construction supervision, comprising a puncture tube (1), one end of which is a puncture end with a spherical end face, and a sampling port A (11) and a sampling port B (12) provided on the puncture tube (1). A sampling rod (2) is rotatably connected inside the puncture tube (1), and a sampling groove A (21) is provided at the end of the sampling rod (2) near the sampling port A (11), and a sampling groove B (22) is provided at the end of the sampling rod (2) near the sampling port B (12). The sampling groove A (21) and the sampling groove B (22) are located above and below the sampling rod (2), respectively. The device is characterized in that: A limiting sleeve (3) is slidably fitted on the puncture cannula (1). A limiting groove is opened on the inner wall of the limiting sleeve (3), and a sliding ring (31) is slidably connected to one end of the limiting groove. An arc groove is opened on the sliding ring (31). A torsion ring (32) is rotatably connected to one side of the sliding ring (31). The torsion ring (32) is slidably connected in the limiting groove. The torsion ring (32) is slidably connected to the arc groove on the sliding ring (31). An arc spring (33) is installed in the arc groove on the sliding ring (31). One end of the arc spring (33) is connected to the torsion ring (32). A nylon fabric (34) is fixedly connected to one side of the torsion ring (32). The end of the nylon fabric (34) away from the torsion ring (32) is fixedly connected to the limiting sleeve (3).

2. The engineering sampling device for construction supervision according to claim 1, characterized in that: The outer wall of the limiting sleeve (3) is circumferentially fixedly connected with several fixed frames (4). Each fixed frame (4) is provided with a storage groove (41). A limiting cone (42) is rotatably connected in the storage groove (41). A limiting block (43) is fixedly connected to one end of the limiting cone (42) connected to the storage groove (41).

3. The engineering sampling device for construction supervision according to claim 2, characterized in that: The two same-side fixed brackets (4) have transmission grooves (5) inside on opposite sides. The fixed brackets (4) have sliding grooves (51) that communicate with the transmission grooves (5). The two same-side fixed brackets (4) have connecting ports (52) that communicate with the sliding grooves (51) on opposite sides.

4. The engineering sampling device for construction supervision according to claim 3, characterized in that: Each transmission groove (5) is rotatably connected to a ratchet (6), and each ratchet (6) is fixedly connected to the end of the shaft of the limiting cone (42) on the same side. A transmission rod (61) is slidably connected in the slide groove (51). A stop block (62) is fixedly connected to the end of the transmission rod (61) near the ratchet (6), and a limit spring (63) is fixedly connected between the end of the transmission rod (61) away from the stop block (62) and the inner wall of the slide groove (51).

5. The engineering sampling device for construction supervision according to claim 4, characterized in that: The stop block (62) meshes with the ratchet (6), and the control plate (64) is fixedly connected to the transmission rod (61) through the communication port (52). The control plate (64) is in contact with the outer wall of the fixed frame (4).

6. The engineering sampling device for construction supervision according to claim 5, characterized in that: Each fixed frame (4) is fixedly connected to a slide rail frame (7) that communicates with the storage slot (41). A baffle (71) is fixedly connected between two slide rail frames (7) on the same side. A limit frame (72) is slidably connected between two slide rail frames (7) on the same side. Several fixed springs (73) are fixedly connected between the limit frame (72) and the baffle (71) on the same side.

7. The engineering sampling device for construction supervision according to claim 6, characterized in that: One side of the limiting cone (42) is ratcheted, and one side of the limiting frame (72) is fixedly connected with a serrated strip (74) in a mirror distribution. The serrated strip (74) engages with the ratcheted side of the limiting cone (42).

8. The engineering sampling device for construction supervision according to claim 7, characterized in that: The length of the storage groove (41) is greater than the length of the limiting block (43), the length of the limiting cone (42) is greater than the length of the storage groove (41), and the part where the limiting block (43) and the limiting cone (42) are connected has an L-shaped structure.

9. The engineering sampling device for construction supervision according to claim 8, characterized in that: A limit ring (13) is fixedly connected to the end of the puncture cannula (1) away from the puncture end. An indicator groove (14) is opened at the end of the puncture cannula (1) away from the puncture end. The indicator groove (14) is on the same side as the sampling port A (11) and the sampling port B (12).

10. The engineering sampling device for construction supervision according to claim 9, characterized in that: A handle (23) is fixedly connected to the end of the sampling rod (2) away from the puncture cannula (1). An indicator needle (24) is fixedly connected to the sampling rod (2). The indicator needle (24) is located above the indicator groove (14). The indicator needle (24) and the sampling groove B (22) are on the same side.

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