Sampling device for concrete admixture in storage tank

Abstract

The utility model discloses a sampling device for a concrete admixture in a storage tank. The sampling device comprises a sample storage pipe, a sampling port joint, a sampling pipe, a ball bearing, a piston, a threaded piston rod and a handle rod, wherein the sampling port joint is arranged at the head end of the sample storage pipe and is communicated with the sample storage pipe. The sampling pipe is a flexible pipe, and one end of the sampling pipe is detachably connected with the sampling opening connector. The ball bearing is fixed in a port at the tail end of the sample storage tube, and an inner ring of the ball bearing extends out of the sample storage tube after extending. The piston is located in an inner cavity of the sample storage pipe, one end of the threaded piston rod is connected with the piston, the other end of the threaded piston rod penetrates through an inner ring of the ball bearing and then extends to the outside of a port of the tail end of the sample storage pipe, and the threaded piston rod is in threaded connection with the inner ring. The handle rod is positioned outside the end opening of the tail end of the sample storage tube and is fixedly connected to the inner ring. The sampling device disclosed by the utility model can effectively reduce the acquisition difficulty of the admixture, and can conveniently acquire the admixture sample at the bottom of the storage tank.

Description

Technical Field

[0001] The utility model relates to the technical field of admixture sampling, and particularly relates to a sampling device for concrete admixture in a storage tank. Background Art

[0002] Concrete admixtures refer to substances added to improve and regulate the performance of concrete. The application of concrete admixtures in engineering has been paid more and more attention. Admixtures can effectively improve the pore structure and the microstructure of the interfacial zone of concrete, thereby improving the performance of concrete. Such as water reducers, air-entraining agents, pumping agents, etc. used to improve the rheological properties of concrete. Retarders, accelerators, etc. used to regulate the setting time of concrete. Waterproof agents, rust inhibitors, etc. used to improve the durability of concrete. For the admixtures added to concrete, technical detection and analysis are required before large-scale use. Usually, samples are obtained from the admixture storage tank for testing, including the detection of the physical and chemical properties of the admixture itself, and the test after adding it to concrete. However, some liquid admixtures are viscous, making it laborious and difficult to obtain samples from the storage tank, and it is also difficult to obtain the admixture at the bottom of the storage tank. For some admixtures that will settle during storage, if the samples at the bottom of the storage tank cannot be obtained, it will affect the accurate detection and evaluation of the performance of such admixtures. Content of the Utility Model

[0003] In view of the above problems, the utility model provides a sampling device for concrete admixture in a storage tank, which can effectively reduce the difficulty of obtaining the admixture and can conveniently obtain the admixture sample at the bottom of the storage tank. Specifically, the technical solution of the utility model is as follows.

[0004] A sampling device for concrete admixture in a storage tank includes: a sample storage tube, a sampling port joint, a sampling tube, a ball bearing, a piston, a threaded piston rod, and a handle rod. Among them: the sampling port joint is arranged at the head end of the sample storage tube and the two are communicated. The sampling port joint is used for detachably connecting with the sampling port on the admixture storage tank. The sampling tube is a flexible tube, and one end of it is detachably connected with the sampling port joint. The ball bearing is fixed in the tail end port of the sample storage tube, and the inner ring of the ball bearing extends out of the tail end port after extension. The piston is located in the inner cavity of the sample storage tube. One end of the threaded piston rod is connected with the piston, and the other end extends out of the tail end port of the sample storage tube after passing through the inner ring of the ball bearing, and the threaded piston rod is threadedly connected with the inner ring. The handle rod is located outside the tail end port of the sample storage tube and is fixedly connected to the inner ring.

[0005] Further, one end of the sampling tube is hermetically connected with a rigid threaded joint, which is threadedly connected with the first threaded interface tube on the end face of the sampling port joint.

[0006] Further, the other end of the sampling tube is connected with a counterweight so that the sampling tube can sink to the bottom of the storage tank.

[0007] Further, the counterweight is a hollow structure made of metal, and has liquid inlet holes on its outer wall. The sampling tube communicates with the inner cavity of the counterweight.

[0008] Further, the other end of the sampling tube is sealingly connected with the threaded joint, which is threadedly connected with the second threaded interface tube on the counterweight. The second threaded interface tube communicates with the inner cavity of the counterweight.

[0009] Further, the outer side wall of the sample storage tube has a long strip-shaped transparent window, which is distributed along the length direction of the sample storage tube so as to observe the sample injection situation in the sample storage tube. Or the sample storage tube is transparent.

[0010] Further, the side surface of the transparent window has scale lines distributed along its length direction.

[0011] Further, a sealing ring is sleeved on the sampling port joint to increase the connection tightness with the sampling port of the admixture storage tank.

[0012] Further, the sampling port joint is threadedly connected with the sampling port on the admixture storage tank.

[0013] Further, it further includes a cover body for closing the sampling port, and the two are detachably connected.

[0014] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0015] The sampling device of the present utility model can be detachably connected with the sampling port on the admixture storage tank through its sampling port joint, so that when sampling, it is not necessary for the staff to hold it by hand to keep the sampling device stable, which is convenient for sampling operation. When sampling, by driving the ball bearing to rotate through the handle rod, the threaded piston rod and the piston can move outward to the sample storage tube, and then the admixture in the storage tank can be pumped into the sample storage tube. This sampling method can be completed only by rotating the ball bearing through the handle rod, effectively reducing the difficulty of obtaining the admixture. In addition, the sample of the admixture at the bottom of the storage tank can be conveniently obtained by extending the sampling tube to the bottom of the admixture storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below.

[0017] Figure 1 It is a schematic structural diagram of the sampling device for concrete admixture in the storage tank in the following embodiments.

[0018] Figure 2 It is a top view of the sampling device for concrete admixture in the storage tank in the following embodiments.

[0019] Figure 3 It is a schematic structural diagram of a ball bearing in the following embodiments.

[0020] Figure 4 It is a schematic structural diagram of a piston and a threaded piston rod in the following embodiments.

[0021] Figure 5 It is a schematic structural diagram of a counterweight in the following embodiments.

[0022] Figure 6 It is a schematic diagram of the use state of the sampling device in the following embodiments.

[0023] The markings in the above-mentioned drawings respectively represent: 1 - sample storage tube, 2 - sampling port connector, 3 - sampling tube, 4 - ball bearing, 5 - piston, 6 - threaded piston rod, 7 - handle rod, 8 - admixture storage tank, 9 - sampling port, 10 - threaded joint, 11 - first threaded interface pipe, 12 - counterweight, 13 - second threaded interface pipe, 14 - transparent window, 15 - scale line, 16 - sealing ring, 401 - outer ring, 402 - inner ring. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. For the convenience of narration, if terms such as "upper", "lower", "left", and "right" appear in the present invention, they only represent the same directions as the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure, but are only for facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to needs to have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. Now, the present invention will be further described in conjunction with the specification drawings and specific implementation manners.

[0025] Refer to Figures 1 - 4 , an example of a sampling device for concrete admixture in a storage tank is provided, including: a sample storage tube 1, a sampling port connector 2, a sampling tube 3, a ball bearing 4, a piston 5, a threaded piston rod 6, and a handle rod 7. Specifically: the sample storage tube 1 is a circular tubular structure, and there is a fixed connection at the center of its lower end / head end, and the sampling port connector 2 communicated with its lumen, and its diameter is smaller than that of the sample storage tube 1. The sampling port connector 2 is used for detachable connection with the sampling port 9 on the admixture storage tank 8 (refer to Figure 6),(For example, the outer wall of the sampling port connector 2 has an external thread, and the inner wall of the sampling port 9 has an internal thread, so that the sampling port connector 2 is screwed into the sampling port 9 to make the two detachably connected. Any other suitable connection method can also be adopted. During non-sampling periods, the sampling port 9 can also be closed by a sealing cover. When sampling is required, the cover is removed from the sampling port 9 to facilitate the connection of the sampling device.)

[0026] The sampling tube 3 is a flexible tube made of plastic material, and one end thereof is detachably connected to the sampling port connector 2. For example, one end of the sampling tube 3 is hermetically connected to a rigid threaded joint 10 made of stainless steel or aluminum alloy and the like. The inner wall of the rigid threaded joint 10 has an internal thread, and the outer wall of the first threaded interface tube 11 on the end face of the sampling port connector 2 has an external thread. The threaded joint 10 is threadedly connected to the first threaded interface tube 11, and the sampling tube 3 is tightly sleeved on the outer wall of the threaded joint 10. In addition, an adhesive can be used to further increase the connection firmness and sealing performance between the sampling tube 3 and the threaded joint 10.)

[0027] The ball bearing 4 is located in the upper port / tail port of the sample storage tube 1, and the outer ring 401 of the ball bearing 4 is fixedly connected to the inner wall of the upper port of the sample storage tube 1, so as to fix the ball bearing 4 in the sample storage tube 1. The inner ring 402 of the ball bearing 4 extends out of the tail port of the sample storage tube 1, and the inner wall of the inner ring 402 has a thread. The above ball bearing 4 can be a ball bearing made of plastic material. The handle rod 7 is located outside the tail port of the sample storage tube 1, and several handle rods 7 are vertically fixedly connected to the outer wall of the inner ring 402. These handle rods 7 are evenly distributed circumferentially along the outer wall of the inner ring 402 to drive the inner ring 402 of the ball bearing 4 to rotate.)

[0028] The piston 5 is made of plastic or rubber and is located in the inner cavity of the sample storage tube 1. One end of the threaded piston rod 6 is fixedly connected to the piston 5, and the other end of the threaded piston rod 6 extends outside the tail end port of the sample storage tube 1 after passing through the inner ring 402, and the threaded piston rod 6 is threadedly connected to the inner ring 402. The threaded piston rod 6 can also be a hollow tube, and its material can be selected from aluminum alloy, stainless steel, plastic, etc. When in use, screw the sampling port joint 2 tightly into the sampling port 9 on the admixture storage tank 8 to integrally connect the sampling device to the sampling port 9, so that there is no need for staff to hold the sampling device to keep it stable during sampling, which is convenient for the staff to perform subsequent sampling operations with both hands. At this time, the sampling tube 3 is located in the admixture in the admixture storage tank 8, and then the staff rotates the handle rod 7 to make the ball bearing 4 rotate, thereby driving the threaded piston rod 6 and the piston 5 to move outward from the sample storage tube 1, and sucking the admixture in the admixture storage tank 8 into the sample storage tube 1. This sampling method can be completed by rotating the ball bearing 4 with the handle rod 7, effectively reducing the difficulty of obtaining the admixture.

[0029] After completion, just disassemble the sampling device from the sampling port 9. When it is necessary to further take out the admixture sample from the sample storage tube 1, rotate the handle rod 7 in the reverse direction to make the threaded piston rod 6 and the piston 5 move into the sample storage tube 1. The sampling tube 3 can also be removed before performing the above operation. It is also possible to reconnect the sampling tube 3 after discharging the admixture sample in the sample storage tube 1, rotate the handle rod 7 to suck the admixture sample remaining in the sampling tube 3 back into the sample storage tube 1, and then remove the sampling tube 3 again and rotate the handle rod 7 to discharge the admixture sample in the sample storage tube 1 to reduce the waste of the admixture and the cleaning of the sampling tube 3.

[0030] In another embodiment, a counterweight 12 is connected to the other end of the sampling tube 3 of the sampling device in the above embodiment. The counterweight 12 can be made of metal, such as a stainless steel body, a lead weight, etc., so that the sampling tube 3 can sink to the bottom of the admixture storage tank 8 to obtain the admixture sample at the bottom, so as to sample and detect some admixtures that will settle during storage, and improve the accuracy of the performance evaluation of such admixtures.

[0031] In a more specific embodiment, refer to Figure 5 The counterweight 12 is a hollow cylinder made of stainless steel, and there are several liquid inlet holes on its outer wall, and the counterweight 12 has a second threaded interface pipe 13 communicating with its inner cavity. The other end of the sampling tube 3 is also threadedly connected to the second threaded interface pipe 13 through the threaded joint 10.

[0032] In another embodiment, refer to Figure 1, on the outer sidewall of the sample storage tube 1 of the sampling device of the above embodiment, there is a strip-shaped transparent window 14, which is distributed along the length direction of the sample storage tube 1. The material of the transparent window 14 includes acrylic, tempered glass, plastic, etc., so as to observe the sample injection situation in the sample storage tube 1. Or the sample storage tube 1 is a transparent structure made of transparent materials such as acrylic and plastic. In addition, scale lines 15 distributed along its length direction can be provided on the side of the transparent window 14 to evaluate the sampling volume when needed.

[0033] In another embodiment, referring to Figure 1 , a flexible plastic or rubber sealing ring 16 is sleeved on the sampling port joint 2 of the sampling device of the above embodiment to increase the connection tightness between the sampling port joint 2 and the sampling port 9 of the admixture storage tank 8.

[0034] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sampling device for concrete admixture in a storage tank, characterized in that, Comprising: A sample storage tube; A sampling port connector, which is arranged at the head end of the sample storage tube and is in communication with the latter. The sampling port connector is used for detachably connecting with the sampling port on the admixture storage tank; A sampling tube, which is a flexible tube, and one end thereof is detachably connected with the sampling port connector; A ball bearing, which is fixed in the tail end port of the sample storage tube, and the inner ring of the ball bearing extends out of the tail end port after extension; A threaded piston rod, one end of which is connected with a piston located in the inner cavity of the sample storage tube, and the other end passes through the inner ring of the ball bearing and extends to the outside of the tail end port of the sample storage tube, and the threaded piston rod is threadedly connected with the inner ring; And a handle rod, which is located outside the tail end port of the sample storage tube and is fixedly connected to the inner ring.

2. The sampling device for concrete admixture in a storage tank according to claim 1, characterized in that, One end of the sampling tube is hermetically connected with a rigid threaded joint, which is threadedly connected with a first threaded interface tube on the end face of the sampling port connector.

3. The sampling device for concrete admixture in a storage tank according to claim 1, characterized in that The other end of the sampling tube is connected with a weight.

4. The sampling device for concrete admixture in the storage tank according to claim 3, characterized in that, The weight is a hollow structure made of metal, and there are liquid inlet holes on its outer wall. The sampling tube is in communication with the inner cavity of the weight.

5. The sampling device for concrete admixture in a storage tank according to claim 4, wherein, The other end of the sampling tube is hermetically connected with a threaded joint, which is threadedly connected with a second threaded interface tube on the weight. The second threaded interface tube is in communication with the inner cavity of the weight.

6. The sampling device for concrete admixture in a storage tank according to claim 1, characterized in that, There is a long transparent window on the outer side wall of the sample storage tube, which is distributed along the length direction of the sample storage tube; or the sample storage tube is transparent.

7. The sampling device for concrete admixture in a storage tank according to claim 6, characterized in that, There are scale lines distributed along the length direction on the side of the transparent window.

8. The sampling device for concrete admixture in a storage tank according to claim 1, characterized in that, A sealing ring is sleeved on the sampling port connector.

9. The sampling device for concrete admixture in a storage tank according to claim 1, characterized in that, The sampling port connector is threadedly connected with the sampling port on the admixture storage tank.

10. The sampling device for concrete admixture in a storage tank according to any one of claims 1-9, characterized in that, It further includes a cover body for closing the sampling port, and the two are detachably connected.

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