On-line sampling device for filter material of filter tank

Abstract

The utility model provides an on-line sampling device for a filter material of a filter tank, and belongs to the technical field of filter material sampling. The sampling device comprises a sampling rod, one end of the sampling rod is detachably connected with a sampling head, the sampling head comprises an inner cylinder and an outer cylinder sleeved outside the inner cylinder, a long hole and a sampling hole a are formed in the surface of the inner cylinder, a sampling hole b communicated with the sampling hole a is formed in the surface of the outer cylinder, and a threaded sleeve is arranged at the position, close to the long hole, of the outer cylinder. A positioning pin is in threaded connection with the interior of the threaded sleeve, the positioning pin is inserted into the long hole and is in sliding connection with the long hole, the outer cylinder and the inner cylinder can rotate relatively, and the sampling rod is sleeved with a positioner used for adjusting the depth of the sampling head inserted into the filter material; the problems that part of sampling grooves of an existing sampler cannot collect quartz sand, and the sampling depth is inaccurate due to the fact that the sampling depth needs to be manually controlled are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter material sampling, in particular to an online sampling device for filter material in a filter pool. Background Art

[0002] In the water treatment process of water plants, the filter tank generally uses quartz sand as the filter material. In the actual production process, sampling and monitoring of quartz sand is also very necessary. Therefore, how to effectively solve the problem of stratified sampling in the filter tank and provide real and reliable test data for filter tank management and research has become an important task.

[0003] A quartz sand filter media stratified sampler disclosed in Chinese patent 201420682790.1 records: it includes an inner rod rotatably mounted inside an outer cylinder, a plurality of circular holes are opened on the lower side of the outer cylinder, and a plurality of sampling slots are opened on the inner rod at positions corresponding to the circular holes. When sampling, the sampling slots are opened by rotating the inner rod, and the quartz sand is sampled through the sampling slots.

[0004] During the actual sampling process of the above-mentioned sampler, after the sampling slot is opened by the inner rod, due to the small opening of the circular hole, the quartz sand at some circular holes cannot enter the circular holes under the pressure of the sand layer itself to automatically fill the sampling slots, resulting in some sampling slots not being able to collect quartz sand. At the same time, there is also the problem of not being able to locate the sampling depth when using the above-mentioned sampler. The sampling depth needs to be manually controlled during sampling, resulting in inaccurate sampling depth. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides an online sampling device for filter media in a filter pool, which is used to solve the above problems.

[0006] The utility model is achieved in this way:

[0007] A device for sampling filter media in a filter pool online comprises a sampling rod, one end of which is detachably connected to a sampling head, the sampling head comprising an inner tube and an outer tube sleeved on the outside thereof, a long hole and a sampling hole a are provided on the surface of the inner tube, a sampling hole b connected to the sampling hole a is provided on the surface of the outer tube, a threaded sleeve is provided near the long hole on the outer tube, a positioning pin is threadedly connected to the threaded sleeve, the positioning pin is inserted into the long hole and slidably connected thereto, the outer tube and the inner tube can rotate relatively, and a positioner for adjusting the insertion depth of the sampling head into the filter media is sleeved on the outside of the sampling rod.

[0008] In one embodiment of the utility model, the sampling rod includes a rod a, a rod b and a handle, the handle is connected to the head end of the rod a, the head end of the rod a is inserted into the end of the rod b, and the rod a and the rod b are connected together by a screw a.

[0009] In an embodiment of the present invention, the sampling hole a and the sampling hole b are consistent in shape and size.

[0010] In an embodiment of the present utility model, the head end of the inner cylinder is plugged into the end of the rod b, and the inner cylinder and the rod b are connected together by a screw a.

[0011] In one embodiment of the utility model, the locator includes a baffle, a bracket and a sleeve, the sleeve is sleeved on the surface of the rod b, the baffle and the sleeve are coaxially arranged, the bracket is connected between the sleeve and the baffle, the sleeve is threadedly connected with a screw b, and the screw b is in contact with the surface of the rod b to fix the position of the locator.

[0012] In an embodiment of the present utility model, a scale is provided on the surface of the rod b.

[0013] In one embodiment of the utility model, the positioning pin includes a threaded column and a clamping shaft, the threaded column is threadedly connected to the threaded sleeve, the clamping shaft is fixedly arranged at one end of the threaded column away from the threaded sleeve, the clamping shaft is inserted into the interior of the long hole and is slidably connected to the long hole, and the threaded column is in contact with the surface of the inner tube.

[0014] In an embodiment of the present invention, the gap between the inner cylinder and the outer cylinder is smaller than the particle size of the filter material.

[0015] In an embodiment of the present invention, the sampling head has various sizes.

[0016] In an embodiment of the present utility model, two marking lines are provided on the surfaces of the rod b and the outer cylinder, and when the two marking lines are aligned, the sampling hole a is aligned with the sampling hole b.

[0017] The beneficial effects of the utility model are:

[0018] 1. Sampling holes a and b with larger openings are opened on the inner tube and the outer tube. During the sampling process, after aligning the sampling holes a and the sampling holes b, the sampling head is inserted into the quartz sand. Under the pressure of the sand layer itself, it is easier to enter the inner tube to sample the filter material.

[0019] 2. The position of the locator on the sampling rod can be adjusted at will. According to the scale mark, the position can be adjusted and fixed. When the sampling head is inserted into the filter material, the baffle can be supported on the surface of the filter material to control the depth of the sampling head inserted into the filter material, thereby achieving the effect of sampling at the positioning depth. Compared with the existing samplers, the sampling depth is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A three-dimensional diagram of a sampling device provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the explosion structure of the sampling device provided in the embodiment of the utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 5 A three-dimensional diagram of a sampling head provided in an embodiment of the utility model;

[0026] Figure 6 A three-dimensional diagram of a positioning pin provided in an embodiment of the utility model.

[0027] In the figure: 1. sampling rod; 11. rod a; 12. rod b; 13. handle; 2. sampling head; 21. inner tube; 211. long hole; 212. sampling hole a; 22. outer tube; 221. threaded sleeve; 222. sampling hole b; 23. pick; 24. positioning pin; 241. threaded column; 242. clamping shaft; 3. screw a; 4. positioner; 41. baffle; 42. bracket; 43. sleeve; 44. screw b. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-6 As shown, the utility model provides a technical solution: an online sampling device for filter material in a filter pool, comprising a sampling rod 1, one end of which is detachably connected to a sampling head 2, a positioner 4 for adjusting the insertion depth of the sampling head 2 into the filter material is sleeved on the outside of the sampling rod 1, when sampling, after adjusting the position of the positioner 4 on the sampling rod 1, the sampling head 2 can reach a set depth after being inserted into the filter material, thereby achieving sampling at the positioning depth.

[0031] like Figure 1-3 As shown in Figure 5, the sampling head 2 includes an inner cylinder 21 and an outer cylinder 22 sleeved on the outside thereof. The surface of the inner cylinder 21 is provided with a long hole 211 and a sampling hole a212. The surface of the outer cylinder 22 is provided with a sampling hole b222 connected with the sampling hole a212. A threaded sleeve 221 is provided on the outer cylinder 22 near the long hole 211. The threaded sleeve 221 is internally threadedly connected with a positioning pin 24. The positioning pin 24 is inserted into the interior of the long hole 211 and is slidably connected to the long hole 211. The outer cylinder 22 and the inner cylinder 21 can rotate relatively. The positioning pin 24 includes a threaded column 241 and a clamping shaft 242. The threaded column 241 is threadedly connected to the threaded sleeve 221. The clamping shaft 242 is fixedly arranged at one end of the threaded column 241 away from the threaded sleeve 221. The clamping shaft 242 is inserted into the interior of the long hole 211 and is slidably connected to the long hole 211. The threaded column 241 contacts the surface of the inner cylinder 21.

[0032] In a feasible embodiment, two marking lines (not shown in the drawings) are provided on the surfaces of the rod b12 and the outer cylinder 22. The outer cylinder 22 is rotated by turning the paddle 23. When the two marking lines are aligned, the sampling hole a212 is aligned with the sampling hole b222.

[0033] Exemplarily, when sampling is performed, the positioning pin 24 is loosened to disengage the threaded column 241 from the surface of the inner cylinder 21. At this time, the outer cylinder 22 can rotate within the opening range of the long hole 211 under the restriction of the long hole 211 and the clamping shaft 242, so as to achieve the effect of opening or closing the sampling hole a212. When the sampling hole a212 is opened, the sampling hole a212 is aligned with the sampling hole b222. After tightening the positioning pin 24, the threaded column 241 contacts the surface of the inner cylinder 21 to fix the position of the outer cylinder 22. Since the sampling holes a212 and the sampling holes b222 have larger openings, when sampling the filter material, after the sampling head 2 is inserted into the filter material, under the pressure of the filter material itself, the filter material can more easily enter the inner cylinder 21 to achieve sampling of the filter material.

[0034] In another example, after the positioning pin 24 is loosened until the clamping shaft 242 is disengaged from the long hole 211 , the outer cylinder 22 can be removed from the surface of the inner cylinder 21 , so as to facilitate the removal of the filter material inside.

[0035] like Figure 1-3 As shown in FIG. 5 , the head end of the inner cylinder 21 is inserted into the end of the rod b12, and the inner cylinder 21 and the rod b12 are connected together by screws a3, and the screws a3 are threadedly connected to the rod b12 and the inner cylinder 21 respectively. After the screws a3 are removed, the rod b12 and the inner cylinder 21 can be separated.

[0036] It should be noted that the sampling head 2 has various sizes, and the difference between the sampling heads 2 of various sizes is only that the inner and outer diameters of the inner tube 21 and the outer tube 22 are different, and the rest of the parts are the same. When replacing the sampling head 2, the sampling head 2 can be separated from the rod b12 after loosening the screw a3, and another sampling head 2 of a different size can be taken out and connected to the rod b12, and then fixed and locked with the screw a3 to complete the replacement of the sampling head 2.

[0037] In a preferred embodiment, the head end of the inner cylinder 21 may also be threadedly connected to the end of the rod b12 to further enhance the connection strength between the inner cylinder 21 and the rod b12.

[0038] like Figure 1-2 As shown, the sampling rod 1 includes a rod a11, a rod b12 and a handle 13, the handle 13 is connected to the head end of the rod a11, the head end of the rod a11 is inserted into the end of the rod b12, and the rod a11 and the rod b12 are connected together by a screw a3.

[0039] In a feasible embodiment, the screw a3 is threadedly connected to the rod a11 and the rod b12 respectively. After the screw a3 is removed, the rod a11 and the rod b12 can be separated, which can facilitate the storage of the sampling device.

[0040] In a preferred embodiment, the end of the rod a11 may also be threadedly connected to the head end of the rod b12 to further enhance the connection strength between the rod a11 and the rod b12.

[0041] like Figure 1-2 As shown in 4, the locator 4 includes a baffle 41, a bracket 42 and a sleeve 43. The sleeve 43 is sleeved on the surface of the rod b12. The baffle 41 and the sleeve 43 are coaxially arranged. The bracket 42 is connected between the sleeve 43 and the baffle 41. The sleeve 43 is threadedly connected with a screw b44. The screw b44 is used to fix the position of the locator 4. The surface of the rod b12 is provided with a scale.

[0042] Specifically, the baffle 41 is used to support the surface of the filter material during sampling, control the depth of the sampling head 2 inserted into the filter material, and adjust the position of the locator 4 on the surface of the rod b12 according to the scale set on the surface of the rod b12. After the adjustment is completed, the screw b44 is tightened. The screw b44 contacts the surface of the rod b12 to fix the position of the locator 4, thereby achieving the effect of positioning the sampling depth. The sampling depth is more accurate than that of existing samplers.

[0043] Specifically, the working principle of the online sampling device for filter media in the filter pool is as follows: before sampling, loosen the positioning pin 24, turn the paddle 23 to rotate the outer cylinder 22 to align the sampling hole a212 with the sampling hole b222, then lock the positioning pin 24 to fix the position of the outer cylinder 22, loosen the screw b44, adjust the position of the locator 4 on the rod b12, and after the adjustment is completed, tighten the screw b44 to fix the position of the locator 4, and insert the sampling head 2 into the filter media. The baffle 41 can be supported on the surface of the filter media to control the depth of the sampling head 2 inserted into the filter media, so as to achieve the positioning depth for sampling. At the same time, after the sampling head 2 is inserted into the quartz sand, it is easier to enter the inner cylinder 21 under the pressure of the sand layer itself to sample the filter media, thereby solving the problem that some sampling slots of the existing sampler cannot collect quartz sand and the sampling depth needs to be manually controlled, resulting in inaccurate sampling depth.

[0044] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An online sampling device for filter media in a filter pool, characterized in that: The invention comprises a sampling rod (1), one end of which is detachably connected to a sampling head (2), the sampling head (2) comprising an inner tube (21) and an outer tube (22) sleeved on the outer side thereof, the inner tube (21) having a long hole (211) and a sampling hole a (212) on its surface, the outer tube (22) having a sampling hole b (222) in communication with the sampling hole a (212) on its surface, a threaded sleeve (221) being arranged on the outer tube (22) near the long hole (211), a positioning pin (24) being threadedly connected to the inner side of the threaded sleeve (221), the positioning pin (24) being inserted into the inner side of the long hole (211) and being slidably connected thereto, the outer tube (22) and the inner tube (21) being relatively rotatable, and a positioner (4) for adjusting the insertion depth of the sampling head (2) into the filter material being sleeved on the outer side of the sampling rod (1).

2. The filter material online sampling device according to claim 1, characterized in that: The sampling rod (1) comprises a rod member a (11), a rod member b (12) and a handle (13), wherein the handle (13) is connected to the head end of the rod member a (11), the head end of the rod member a (11) is plugged into the tail end of the rod member b (12), and the rod member a (11) and the rod member b (12) are connected together by a screw a (3).

3. The filter material online sampling device according to claim 1, characterized in that: The sampling hole a (212) and the sampling hole b (222) are consistent in shape and size.

4. The filter material online sampling device according to claim 2, characterized in that: The head end of the inner cylinder (21) is plugged into the end of the rod b (12), and the inner cylinder (21) and the rod b (12) are connected together by means of a screw a (3).

5. The filter material online sampling device according to claim 2, characterized in that: The positioner (4) comprises a baffle (41), a bracket (42) and a sleeve (43); the sleeve (43) is sleeved on the surface of the rod b (12); the baffle (41) and the sleeve (43) are coaxially arranged; the bracket (42) is connected between the sleeve (43) and the baffle (41); the sleeve (43) is threadedly connected with a screw b (44); the screw b (44) contacts the surface of the rod b (12) to fix the position of the positioner (4).

6. The on-line sampling device for filter media in a filter pool according to claim 2, characterized in that: The surface of the rod b (12) is provided with scales.

7. The on-line sampling device for filter media in a filter pool according to any one of claims 1 to 5, characterized in that: The positioning pin (24) comprises a threaded column (241) and a clamping shaft (242); the threaded column (241) is threadedly connected to the threaded sleeve (221); the clamping shaft (242) is fixedly arranged at one end of the threaded column (241) away from the threaded sleeve (221); the clamping shaft (242) is inserted into the inside of the long hole (211) and is slidably connected to the long hole (211); the threaded column (241) is in contact with the surface of the inner tube (21).

8. The filter material online sampling device according to any one of claims 1 to 5, characterized in that: The gap between the inner cylinder (21) and the outer cylinder (22) is smaller than the particle size of the filter material.

9. The filter material online sampling device according to any one of claims 1 to 5, characterized in that: The sampling head (2) has various sizes.

10. The filter material online sampling device of the filter bed according to claim 2, characterized in that: Two marking lines are provided on the surfaces of the rod b (12) and the outer cylinder (22), and when the two marking lines are aligned, the sampling hole a (212) is aligned with the sampling hole b (222).

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