Depth-keeping sampling equipment for thick sludge

Abstract

The utility model belongs to the technical field of sampling equipment, and particularly relates to thick sludge fixed-depth sampling equipment which comprises a sampling barrel, a sealing plug and a sliding barrel, a sampling hole is formed in the bottom end of the sampling barrel, and the sealing plug is slidably arranged on the inner wall of the sampling hole; a rod body is arranged at the upper end of the sampling barrel, guide holes are formed in the rod body and the sampling barrel in a penetrating mode, and a sliding groove is formed in the rod body in a penetrating mode; a sliding barrel is arranged on the outer wall of the rod body in a sliding mode, and a sliding piece penetrates through the sliding barrel and is arranged in the sliding groove in a matched mode; a guide rod is arranged at the upper end of the sealing plug and arranged in the guide hole in a sliding mode, and the upper end of the guide rod is connected with the sliding piece. According to the structure, sludge at a specific depth can be sampled; through the detachable structure, the sampling barrel, the sliding barrel, the sliding piece, the sealing plug and other components can be conveniently and rapidly detached, and cleaning is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sampling equipment technical field, especially is related to a viscous silt fixed depth sampling equipment. BACKGROUND

[0002] Silt sampling has various functions, such as: silt sampling can study the accumulation, distribution, transformation and migration of pollutants discharged into water in the sediment, and is widely used in the fields of environment, hydrology and the like; silt sampling can be used for foundation evaluation, and the physical and chemical properties of silt are analyzed to evaluate the stability of foundation and the like.

[0003] There are various silt sampling devices, and the structure of a common silt sampling device mainly comprises a sampling tube and a releasing device; the sampling tube is inserted into deposited silt by relying on gravity or external force, and the sample is kept from falling off by friction. However, the above-mentioned sampling device is not suitable for collecting viscous silt samples at a specific depth position; the sampling tube starts sampling when it is inserted into the silt layer, so it cannot sample silt at a specific depth; and the sample may fall off in the lifting process of the sampling tube by keeping the sample from falling off by friction. SUMMARY

[0004] In view of the technical problems in the background art, the utility model provides a viscous silt fixed depth sampling device.

[0005] To achieve the above-mentioned purpose, the utility model provides a technical scheme:

[0006] A viscous silt fixed depth sampling device, comprising a sampling cylinder, a sealing plug and a sliding cylinder, a sampling hole is formed in the bottom end of the sampling cylinder, the sealing plug is slidably arranged on the inner wall of the sampling hole; a rod body is arranged at the upper end of the sampling cylinder, a guide hole is formed through the rod body and the sampling cylinder, and a sliding groove is formed through the rod body; a sliding cylinder is slidably arranged on the outer wall of the rod body, a sliding member is arranged in the sliding cylinder, and the sliding member is arranged in the sliding groove in a matched mode; a guide rod is arranged at the upper end of the sealing plug, the guide rod is slidably arranged in the guide hole, and the upper end of the guide rod is connected with the sliding member.

[0007] Optionally, the bottom end of the sealing plug is in a conical shape.

[0008] Optionally, a sealing ring is sleeved on the guide rod, a spring is sleeved on the guide rod, one end of the spring is arranged in close contact with the inner wall of the sampling hole, and the other end of the spring is arranged in close contact with the sealing ring; when the sealing plug is arranged at the end of the sampling cylinder in a matched mode, the spring is in a compressed state, and the spring presses the sealing ring against the end face of the sealing plug.

[0009] Optionally, the sliding member comprises a sliding bolt and a locking nut, a first mounting hole is formed through the sliding cylinder, a second mounting hole is formed in the upper end of the guide rod, the first mounting hole and the second mounting hole are aligned and the sliding bolt is inserted, and the locking nut is arranged on the sliding bolt.

[0010] Optionally, the two sides of the sliding cylinder are respectively provided with a pedal member.

[0011] Optionally, the upper end of the sliding cylinder is rotatably provided with a sliding nut assembly, the outer wall of the rod body is provided with an external thread, and the sliding nut assembly is threadedly connected to the outer wall of the rod body.

[0012] Optionally, the sliding nut assembly comprises a sliding nut and a positioning block, the positioning block is provided in a semicircular shape, the upper and lower ends of the positioning block are respectively provided with a stopper, the two positioning blocks are detachably arranged on the outer wall of the sliding nut, and the upper end of the sliding cylinder is provided with a rotating groove, the stopper on the upper side of the positioning block is arranged in close contact with the upper end surface of the sliding nut, and the stopper on the lower side of the positioning block is arranged in the rotating groove.

[0013] Optionally, a third mounting hole is arranged on the positioning block, threaded holes are arranged on the two sides of the sliding nut, the threaded holes and the third mounting hole are aligned, and a locking screw is arranged in the threaded holes and the third mounting hole.

[0014] Optionally, the upper end of the rod body is provided with a T-shaped handle member.

[0015] The utility model has the advantages and beneficial effects that:

[0016] In the utility model, a sampling hole is formed in the bottom end of the sampling cylinder, and a sealing plug is slidably arranged on the inner wall of the sampling hole. By adjusting the position of the sealing plug, the sampling hole can be closed or opened. Before reaching the sampling depth layer, the sampling hole is closed by the sealing plug to prevent silt from entering. When reaching the sampling depth layer, the sealing plug moves upward to open the sampling hole, thereby realizing the sampling operation. This structure can sample silt at a specific depth. Meanwhile, a certain negative pressure is provided by the sealing plug to ensure that the sample does not fall off during the lifting of the sampling cylinder, thereby improving the success rate of sampling.

[0017] In the utility model, the height of the sliding cylinder is adjusted by lifting, thereby realizing the lifting adjustment of the sealing plug. The operator can easily adjust and operate at a high point. Meanwhile, the structure can be disassembled conveniently and quickly, and the sampling cylinder, the sliding cylinder, the sliding member, the sealing plug and other components can be disassembled. This structure is convenient to clean. After the silt sampling is completed, the sample is quickly pushed out by the sealing plug. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The utility model discloses a viscous sludge depth setting sampling equipment's structure diagram.

[0019] Figure 2 For Figure 1 The partial structure's partial close -up of middle part.

[0020] Figure 3 The utility model discloses a viscous sludge depth setting sampling equipment's sectional view.

[0021] Figure 4 For Figure 3 The sectional view of along A-A direction of middle part.

[0022] Figure 5 For Figure 3 The partial close -up of a of middle part.

[0023] Figure 6 For Figure 4 The partial structure's partial close -up of middle part.

[0024] Figure 7 The utility model discloses a sealing plug's structure diagram.

[0025] Figure 8 The utility model discloses a slide cylinder's structure diagram.

[0026] Figure 9 The utility model discloses a positioning block's structure diagram.

[0027] Fig. 1 - hand component, 2 - pole body, 21 - sliding slot, 3 - sampling cylinder, 31 - sampling hole, 32 - spring, 33 - sealing ring, 34 - guide hole, 4 - sealing plug, 41 - guide rod, 42 - second mounting hole, 5 - slide cylinder, 51 - first limit block, 52 - first mounting hole, 53 - sliding bolt, 54 - lock nut, 55 - rotation groove, 6 - pedal piece, 7 - positioning block, 71 - stop block, 72 - second limit block, 73 - third mounting hole, 8 - locking screw, 81 - threaded section, 9 - sliding nut, 91 - threaded hole. Specific implementation

[0028] In order to make the utility model embodiment's purpose, technical scheme and advantage more clear, below will combine the drawing in the utility model embodiment, to the technical scheme in the utility model embodiment, clear, complete is described, obviously, the described embodiment is the utility model a part embodiment, instead of all the embodiment.

[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 to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] Example

[0031] like Figures 1-9 As shown, a viscous sludge depth sampling device includes a sampling cylinder 3, a sealing plug 4, and a sliding cylinder 5. A sampling hole 31 is provided at the bottom end of the sampling cylinder 3. The sealing plug 4 is slidably disposed on the inner wall of the sampling hole 31, allowing the sampling hole 31 to be closed or opened, thereby achieving sampling at a specific depth. A rod 2 is provided at the upper end of the sampling cylinder 3. A guide hole 34 is provided through the rod 2 and the sampling cylinder 3, with the bottom end of the guide hole 34 communicating with the sampling hole 31. A sliding groove 21 is provided through the rod 2, communicating with the guide hole 34. A sliding cylinder 5 is slidably disposed on the outer wall of the rod 2. A sliding element is inserted into the sliding cylinder 5, and the sliding element is fitted into the sliding groove 21. The sliding element and the sliding groove 21 cooperate to allow the sliding cylinder 5 to slide and rise along the rod 2. A guide rod 41 is provided at the upper end of the sealing plug 4. The guide rod 41 is slidably disposed in the guide hole 34, and the upper end of the guide rod 41 is connected to the sliding member. In this way, the sealing plug 4 can be raised and lowered in the sampling hole 31 by the sliding cylinder 5, so as to realize the closing or opening operation of the sampling hole 31.

[0032] In this invention, the sampling hole 31 can be closed or opened by adjusting the position of the sealing plug 4. For example... Figure 6 As shown, the sampling tube is inserted into the silt layer, and before reaching the sampling depth layer, the sampling hole 31 is closed by the sealing plug 4 to prevent silt from entering. When the sampling depth layer is reached, the sealing plug 4 moves upward to open the sampling hole 31, and then the sampling tube continues to be inserted downward to realize the silt sampling operation. This structure can sample silt at a specific depth. At the same time, the sealing plug 4 provides a certain negative pressure to ensure that the sample will not fall off during the lifting process of the sampling tube 3, thereby improving the sampling success rate.

[0033] In this invention, the height of the sliding cylinder 5 is adjusted to raise or lower the sealing plug 4, allowing the operator to easily adjust the position from the highest point. Simultaneously, the detachable structure allows for convenient and quick disassembly of components such as the sampling cylinder 3, sliding cylinder 5, sliding parts, and sealing plug 4. This structure facilitates cleaning, and after sludge sampling, the sealing plug 4 is used to quickly eject the sample.

[0034] In this invention, the bottom end of the sealing plug 4 is set in a cone shape, which makes it easy and effortless to insert into the silt layer.

[0035] As Figure 6 And Figure 7 Further, the guide rod 41 is sleeved with a sealing ring 33, the guide rod 41 is sleeved with a spring 32, one end of the spring 32 is arranged close to the inner wall of the sampling hole 31, and the other end of the spring 32 is arranged close to the sealing ring 33. When the sealing plug 4 is arranged at the end of the sampling cylinder 3, the sampling hole 31 is closed, the spring 32 is in a compressed state, the spring 32 presses the sealing ring 33 on the end face of the sealing plug 4, the sealing is realized by the sealing ring 33, and the silt is prevented from seeping into the sampling hole 31. Meanwhile, the sealing is realized by the sealing ring 33, when the sealing plug 4 and the density ring 33 are simultaneously accommodated into the sampling hole 31, negative pressure suction can be provided, and it is ensured that the sample can be stably adsorbed in the sampling hole 31. Moreover, the structure is convenient for replacing the sealing ring 33.

[0036] As Figures 1-9 As shown in the utility model, the sliding piece includes a sliding bolt 53 and a locking nut 54, the two sides of the sliding cylinder 5 are symmetrically provided with first limiting blocks 51, the sliding cylinder 5 is provided with a first mounting hole 52 penetrating through, the first mounting hole 52 penetrates through the first limiting block 51, the upper end of the guide rod 41 is provided with a second mounting hole 42, the first mounting hole 52 and the second mounting hole 42 are aligned and pass through the sliding bolt 53, the locking nut 54 is arranged in cooperation on the sliding bolt 53, and the locking nut 54 is attached to the end face of the first limiting block 51 by rotating, so that the mounting and fixing between the sliding cylinder 5, the sliding piece and the guide rod 41 can be realized. The connecting structure is convenient to disassemble and assemble, is convenient for subsequent cleaning of the sampling hole 31 and cleaning and replacement of the sealing plug 4, the sealing ring 33 and other components.

[0037] Further, the two sides of the sliding cylinder 5 are respectively provided with pedal pieces 6, a plurality of anti-skid convex strips are arranged on the pedal piece 6, and the sampling cylinder 3 can be inserted into the silt to realize sampling in a foot pedal mode by using the pedal piece 6.

[0038] As Figures 4-6 As shown in the utility model, when the sealing plug 4 is arranged at the end of the sampling cylinder 3, the sampling hole 31 is closed, and at this time, the bottom end of the sliding cylinder 5 is arranged close to the upper end face of the sampling cylinder 3, so that the lowest position limiting of the sealing plug 4 can be realized, when the sliding cylinder 5 reaches the lowest position and is close to the upper end face of the sampling cylinder 3, the sealing plug 4 just closes the sampling hole 31, and only the conical tip is exposed. Moreover, at this time, the pedal piece 6 is also close to the upper end face of the sampling cylinder 3, the pedal piece 6 can be stably supported, and the strength of the pedal piece 6 is strengthened.

[0039] As Figures 1-9 As shown in the utility model, the upper end of the sliding cylinder 5 is rotatably provided with a sliding nut assembly, the outer wall of the rod body 2 is provided with an external thread, and the sliding nut assembly is threadedly connected on the outer wall of the rod body 2. By rotating the sliding nut assembly, the lifting movement of the sliding cylinder 5 can be controlled.

[0040] Further, the sliding nut assembly comprises the sliding nut 9 and the positioning block 7, the positioning block 7 is arranged in a semicircular shape, arc-shaped stoppers 71 are arranged at the upper and lower ends of the positioning block 7 respectively, the two positioning blocks 7 are detachably arranged on the outer wall of the sliding nut 9, and the two positioning blocks 7 are spliced to form an annular shape. The upper end of the sliding cylinder 5 is provided with a rotating groove 55, the upper side stopper 71 of the positioning block 7 is arranged in close contact with the upper end face of the sliding nut 9, and the lower side stopper 71 of the positioning block 7 is arranged in the rotating groove 55 in a matched mode. Through the above arrangement, the sliding nut assembly is convenient to disassemble and assemble.

[0041] Further, the positioning block 7 is provided with a second limiting block 72, the positioning block 7 is provided with a third mounting hole 73, the third mounting hole 73 penetrates through the second limiting block 72, the two sides of the sliding nut 9 are provided with threaded holes 91 respectively, the threaded holes 91 and the third mounting hole 73 are aligned, the threaded holes 91 and the third mounting hole 73 are provided with locking screws 8, the threaded segments 81 of the locking screws 8 are threadedly connected in the threaded holes 91, and one end of the locking screw 8 is in close contact with the second limiting block 72 to realize locking and fixing. Through the above arrangement, the positioning block 7 and the sliding nut 9 are fixed by the locking screw 8, and meanwhile, the locking screw 8 can be used as a rotating handle, a hand holds the locking screw 8 to drive the sliding nut assembly (the sliding nut 9 and the positioning block 7) to rotate, and the lifting adjustment of the sliding cylinder 5 can be realized.

[0042] In the utility model, the upper end of the rod body 2 is provided with a T-shaped handle component 1, and the handle component 1 is threadedly connected with the rod body 2.

[0043] Sampling principle:

[0044] As shown in the drawings, Figure 4 When the bottom end of the sliding cylinder 5 is in close contact with the upper end face of the sampling cylinder 3, the sealing plug 4 seals the sampling hole 31, at this moment, the spring 32 is compressed, and the spring 32 drives the sealing ring 33 to be in close contact with the sealing plug 4 to realize sealing.

[0045] A hand holds the handle component 1, inserts the sampling cylinder 3 into the sludge, and after inserting to a certain depth, the depth operation of the sampling cylinder 3 is completed by the way of stepping on the pedal component 6, until the sampling depth layer is reached.

[0046] After reaching the sampling depth layer, a hand rotates the locking screw 8, drives the sliding nut 9 assembly to move upwards, gradually pulls the sliding cylinder 5 upwards, at this moment, the pedal component 6 rises along with the sliding cylinder 5, the sliding cylinder 5 drives the sealing plug 4 to rise, and the sealing plug 4 is completely accommodated in the sampling hole 31, so that the sampling condition is met.

[0047] By means of manual pressing, the sampling cylinder 3 is continuously inserted into the silt layer in an assisted manner of the foot-pressed pedal member 6, and the silt is inserted into the sampling hole 31, and sampling is completed. After sampling is completed, the locking screw 8 can be continuously rotated to drive the sealing plug 4 to move upwards, and negative pressure suction is provided, so that the silt can be stably adsorbed in the sampling hole 31.

[0048] Finally, the sampling cylinder 3 is lifted, and after the sampling cylinder 3 body is taken out, the locking screw 8 is reversely rotated by hand to drive the sliding nut 9 assembly to descend, the sliding cylinder 5 drives the sealing plug 4 to descend, and the sampled silt is gradually pushed out of the sampling hole 31, and the sample is taken out.

[0049] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for sampling viscous silt at a fixed depth, characterized in that: Includes sampling tube, sealing plug, and slide tube. The sampling tube has a sampling hole at its bottom end, and the sealing plug is slidably disposed on the inner wall of the sampling hole; the sampling tube has a rod at its upper end, and a guide hole is provided through the rod and the sampling tube, and a sliding groove is provided through the rod. A sliding cylinder is slidably provided on the outer wall of the rod, and a sliding element is inserted inside the sliding cylinder. The sliding element is fitted in a sliding groove. A guide rod is provided at the upper end of the sealing plug. The guide rod is slidably provided in a guide hole, and the upper end of the guide rod is connected to the sliding element.

2. The viscous sludge depth sampling device according to claim 1, characterized in that: The bottom end of the sealing plug is cone-shaped.

3. The viscous sludge depth sampling device according to claim 1, characterized in that: A sealing ring is fitted on the guide rod, and a spring is fitted on the guide rod. One end of the spring is tightly attached to the inner wall of the sampling hole, and the other end of the spring is tightly attached to the sealing ring. When the sealing plug is fitted at the end of the sampling cylinder, the spring is in a compressed state, and the spring presses the sealing ring tightly against the end face of the sealing plug.

4. The viscous sludge depth sampling device according to claim 1, characterized in that: The sliding component includes a sliding bolt and a locking nut. A first mounting hole is provided through the sliding cylinder, and a second mounting hole is provided at the upper end of the guide rod. The first mounting hole and the second mounting hole are aligned and the sliding bolt is inserted through them. A locking nut is fitted on the sliding bolt.

5. The viscous silt depth sampling device according to claim 1 or 4, characterized in that: The slide is provided with pedals on both sides.

6. The viscous sludge depth sampling device according to claim 4, characterized in that: The upper end of the slide cylinder is rotatably provided with a sliding nut assembly, the outer wall of the rod is provided with external threads, and the sliding nut assembly is threadedly connected to the outer wall of the rod.

7. The viscous sludge depth sampling device according to claim 6, characterized in that: The sliding nut assembly includes a sliding nut and a positioning block. The positioning block is semi-circular in shape, and a stop is provided at both the upper and lower ends of the positioning block. The two positioning blocks are detachably mounted on the outer wall of the sliding nut. A rotating groove is provided at the upper end of the sliding cylinder. The stop on the upper side of the positioning block is set close to the upper end face of the sliding nut, and the stop on the lower side of the positioning block is fitted into the rotating groove.

8. The viscous sludge depth sampling device according to claim 7, characterized in that: The positioning block is provided with a third mounting hole, and threaded holes are provided on both sides of the sliding nut. The threaded holes and the third mounting hole are aligned, and locking screws are provided in the threaded holes and the third mounting hole.

9. The viscous sludge depth sampling device according to claim 1, characterized in that: The upper end of the rod is provided with a T-shaped handle.

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