Sample extraction device

Abstract

The utility model relates to the technical field of sampling equipment, in particular to a sample extraction device which comprises an extraction barrel, and a cover plate is fixedly connected to the top end of the extraction barrel. According to the utility model, the piston plate at the bottom end can be driven by the screw rod to slide upwards in the extraction cylinder, the current extraction amount displayed on the scale plate can be observed through the indication sleeve plate, the extraction amount is the liquid volume between the piston plate and the bottom of the extraction cylinder, and the liquid volume can be extracted by raising the scale plate to the height of the liquid volume required to be extracted. In this way, the extracted water reducing agent is preset, the water reducing agent can enter the extraction barrel from the liquid inlet column after the extraction barrel is put into the water reducing agent container and the opening of the liquid inlet column is opened, and then the foam plate can float along with the rising of the liquid level of the water reducing agent until the steel ball at the top end of the sliding column collides with the iron block to make a sound; at the moment, the extracted content of the water reducing agent is the set liquid amount, so that the problem that the extraction dosage is too large or too small during sampling can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to a sample extraction device. Background Technique

[0002] A concrete water reducer refers to a substance added before or during the mixing of concrete to improve the performance of fresh concrete and hardened concrete. In order to detect the concentration of the water reducer, sampling is generally required, so corresponding sample extraction equipment is needed. When sampling in the existing way, it is difficult to accurately control the sampling dose, so it is very easy to cause too much or too little sample dose, making the actual sampling process very inconvenient. Content of the Utility Model

[0003] The purpose of the utility model is to provide a sample extraction device to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A sample extraction device includes an extraction cylinder. The top end of the extraction cylinder is fixedly connected with a cover plate. A screw rod is rotatably connected at the central position of the cover plate. The bottom end of the screw rod is rotatably connected with a piston plate. The piston plate is slidably sleeved inside the extraction cylinder. The top end of the screw rod is fixedly connected with a turning handle. The top end of the turning handle is rotatably connected with a lifting plate. One end of the lifting plate is fixedly connected with a scale plate. The other end of the lifting plate is fixedly connected with an iron block. The bottom end of the scale plate is fixedly connected with the piston plate. The cover plate is fixedly connected with an indicating sleeve plate that is slidably sleeved with the scale plate.

[0006] Furthermore, a sliding column that is slidably connected with the cover plate is fixedly connected to the piston plate. A foam plate is fixedly connected to the bottom end of the sliding column. A steel ball is fixedly connected to the top end of the sliding column.

[0007] Furthermore, two limiting grooves are symmetrically formed on the outer wall of the piston plate. Two limiting columns that are slidably connected with the limiting grooves are symmetrically and fixedly connected to the inner wall of the extraction cylinder.

[0008] Furthermore, a liquid inlet column that is communicated with the inside thereof is fixedly connected to the outer wall of the extraction cylinder. A sealing groove is fixedly arranged in the liquid inlet column. A plugging plate is slidably sleeved in the sealing groove. A rubber layer is fixedly connected to the outside of the plugging plate. A linkage ring is fixedly connected to the top end of the plugging plate.

[0009] Furthermore, the outside of the extraction cylinder is fixedly sleeved with a sleeve ring, the outer wall of the sleeve ring is fixedly connected with a positioning block, the positioning block is slidably connected with a connecting rod fixedly connected to a linkage ring, the top of the connecting rod is fixedly connected with a sliding ring, the sliding ring is slidably sleeved with a hand grip rod fixedly connected to the positioning block, and the outside of the hand grip rod is provided with a toggle piece fixedly connected to the sliding ring.

[0010] Furthermore, the blocking plate is fixedly connected to two return springs which are fixedly connected to the liquid inlet column.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. During the sampling operation, the screw can be rotated by the handle, so that the screw can drive the piston plate at the bottom to slide upward inside the extraction cylinder, and the piston plate can drive the scale plate to rise. The current extraction amount displayed on the scale plate can be observed through the indicator sleeve. The extraction amount is the liquid capacity between the piston plate and the bottom of the extraction cylinder. By raising the scale plate to the height of the liquid volume to be extracted, the water reducer to be extracted is pre-set, and the extraction cylinder is placed in the water reducer container. After the opening of the liquid inlet column is opened, the water reducer will enter the extraction cylinder from the liquid inlet column, and then the foam plate will float up with the increase of the water reducer liquid level until the steel ball at the top of the sliding column collides with the iron block and makes a sound. At this time, the extracted water reducer content is the set liquid volume, so it can avoid the problem of excessive or insufficient extraction dosage during sampling.

[0013] 2. When sampling, press the toggle piece with your fingers to move it up, thereby driving the sliding ring and the connecting rod to move up. The connecting rod can drive the linkage ring and the sealing plate on one side to slide and move up in the sealing groove, so that the sealing plate no longer blocks the liquid inlet column. In this way, the water reducer will flow into the extraction cylinder. When the metal collision sound is heard, release the toggle piece with your fingers, and then the sealing plate will return to its original position under the action of the reset spring, so that the liquid inlet column can be kept closed again, which can prevent the leakage of the extracted liquid and improve the sealing of the sampling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the extraction cylinder in the utility model;

[0016] Figure 3 This is a schematic diagram of the piston plate connection structure in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the blocking plate driving assembly in the utility model.

[0018] In the figure: 101, extraction cylinder; 102, cover plate; 103, screw; 104, handle; 105, piston plate; 106, scale plate; 107, indicator sleeve plate; 108, lifting plate; 109, iron block; 110, sliding column; 111, foam plate; 112, steel ball; 113, liquid inlet column; 114, sealing groove; 115, limit groove; 201, sleeve ring; 202, positioning block; 203, hand grip rod; 204, sliding ring; 205, toggle plate; 206, connecting rod; 207, linkage ring; 208, blocking plate; 209, reset spring; 210, rubber layer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4 In the embodiment of the utility model, a sample extraction device includes an extraction cylinder 101, a cover plate 102 is fixedly connected to the top of the extraction cylinder 101, a screw 103 is screwed and connected at the center of the cover plate 102, a piston plate 105 is rotatably connected to the bottom of the screw 103, the piston plate 105 is slidably sleeved with the inside of the extraction cylinder 101, a handle 104 is fixedly connected to the top of the screw 103, a lifting plate 108 is rotatably connected to the top of the handle 104, one end of the lifting plate 108 is fixedly connected to a scale plate 106, and the other end of the lifting plate 108 is fixedly connected to an iron plate 106. Block 109, the bottom end of the scale plate 106 is fixedly connected to the piston plate 105, and the cover plate 102 is fixedly connected with an indicating sleeve 107 that is slidably sleeved with the scale plate 106; the piston plate 105 is fixedly connected with a sliding column 110 that is slidably connected to the cover plate 102, the bottom end of the sliding column 110 is fixedly connected with a foam plate 111, and the top of the sliding column 110 is fixedly connected with a steel ball 112; two limiting grooves 115 are symmetrically provided on the outer wall of the piston plate 105, and two limiting columns that are slidably connected to the limiting grooves 115 are symmetrically fixedly connected on the inner wall of the extraction cylinder 101.

[0021] Specifically, during the sampling operation, the screw 103 can be rotated by the handle 104, so that the screw 103 can drive the piston plate 105 at the bottom to slide upward inside the extraction cylinder 101, and the scale plate 106 can also be raised by the piston plate 105. The current extraction amount displayed on the scale plate 106 can be observed through the indicator sleeve 107. The extraction amount is the liquid capacity between the piston plate 105 and the bottom of the extraction cylinder 101. By raising the scale plate 106 to the amount of liquid to be extracted, the extraction amount can be adjusted. The water reducer to be extracted is set in advance, and the extraction cylinder 101 is placed in the water reducer container. After the opening of the liquid inlet column 113 is opened, the water reducer will enter the extraction cylinder 101 from the liquid inlet column 113, and then the foam plate 111 will float up with the water reducer liquid level rising, until the steel ball 112 at the top of the sliding column 110 collides with the iron block 109 and makes a sound. At this time, the water reducer content extracted is the set liquid amount, so the problem of excessive or insufficient extraction dosage during sampling can be avoided.

[0022] Embodiment 1

[0023] like Figure 4 As shown, in this embodiment, the outer wall of the extraction cylinder 101 is fixedly connected with a liquid inlet column 113 connected with the interior thereof, a sealing groove 114 is fixedly provided in the liquid inlet column 113, a sealing plate 208 is slidably sleeved in the sealing groove 114, a rubber layer 210 is fixedly connected to the outside of the sealing plate 208, and a linkage ring 207 is fixedly connected to the top of the sealing plate 208; a sleeve ring 201 is fixedly sleeved on the outside of the extraction cylinder 101, and a fixed sleeve ring 207 is fixedly connected on the outer wall of the sleeve ring 201. The positioning block 202 has a connecting rod 206 slidably connected therein and fixedly connected to the linkage ring 207. The top of the connecting rod 206 is fixedly connected to a sliding ring 204. The sliding ring 204 has a hand grip rod 203 slidably sleeved therein and fixedly connected to the positioning block 202. The outside of the hand grip rod 203 is provided with a paddle plate 205 fixedly connected to the sliding ring 204. The sealing plate 208 is fixedly connected to two return springs 209 fixedly connected to the liquid inlet column 113.

[0024] In this embodiment, when sampling, the finger presses the toggle piece 205 to rise, thereby driving the sliding ring 204 and the connecting rod 206 to rise, and the connecting rod 206 can drive the linkage ring 207 and the sealing plate 208 on one side to slide and rise in the sealing groove 114, so that the sealing plate 208 no longer blocks the liquid inlet column 113, so that the water reducer will flow into the extraction cylinder 101, and when the metal collision sound is heard, the finger releases the toggle piece 205, and then the sealing plate 208 will return to its original position under the action of the reset spring 209, so that the closed state of the liquid inlet column 113 can be maintained again, so that the leakage of the extracted liquid can be prevented, and the sealing of the sampling equipment is improved.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sample extraction device, characterized in that: The invention comprises an extraction cylinder (101), wherein the top end of the extraction cylinder (101) is fixedly connected to a cover plate (102), a screw rod (103) is screwed and connected at the center of the cover plate (102), the bottom end of the screw rod (103) is rotatably connected to a piston plate (105), the piston plate (105) is slidably sleeved with the inside of the extraction cylinder (101), the top end of the screw rod (103) is fixedly connected to a rotating handle (104), the top end of the rotating handle (104) is rotatably connected to a lifting plate (108), one end of the lifting plate (108) is fixedly connected to a scale plate (106), the other end of the lifting plate (108) is fixedly connected to an iron block (109), the bottom end of the scale plate (106) is fixedly connected to the piston plate (105), and the cover plate (102) is fixedly connected to an indicating sleeve plate (107) slidably sleeved with the scale plate (106).

2. A sample extraction device according to claim 1, characterized in that: A sliding column (110) slidably connected to the cover plate (102) is fixedly connected to the piston plate (105), a foam plate (111) is fixedly connected to the bottom end of the sliding column (110), and a steel ball (112) is fixedly connected to the top end of the sliding column (110).

3. A sample extraction device according to claim 1, characterized in that: Two limiting grooves (115) are symmetrically provided on the outer wall of the piston plate (105), and two limiting columns slidably connected to the limiting grooves (115) are symmetrically fixedly connected to the inner wall of the extraction cylinder (101).

4. A sample extraction device according to claim 1, characterized in that: A liquid inlet column (113) in communication with the interior of the extraction cylinder (101) is fixedly connected to the outer wall of the extraction cylinder (101), a sealing groove (114) is fixedly provided in the liquid inlet column (113), a sealing plate (208) is slidably sleeved in the sealing groove (114), a rubber layer (210) is fixedly connected to the outside of the sealing plate (208), and a linkage ring (207) is fixedly connected to the top of the sealing plate (208).

5. A sample extraction device according to claim 4, characterized in that: The extraction cylinder (101) is fixedly sleeved with a sleeve ring (201) on its exterior, a positioning block (202) is fixedly connected to the outer wall of the sleeve ring (201), a connecting rod (206) fixedly connected to a linkage ring (207) is slidably connected in the positioning block (202), a sliding ring (204) is fixedly connected to the top of the connecting rod (206), a hand grip rod (203) fixedly connected to the positioning block (202) is slidably sleeved in the sliding ring (204), and a toggle plate (205) fixedly connected to the sliding ring (204) is arranged on the exterior of the hand grip rod (203).

6. A sample extraction device according to claim 5, characterized in that: The blocking plate (208) is fixedly connected to two return springs (209) which are fixedly connected to the liquid inlet column (113).

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