Sampler with good sampling sealing performance

Abstract

The utility model relates to the technical field of samplers, in particular to a sampler with good sampling sealing performance, which comprises a sampler main body, a sampling tube connected with the sampler main body is arranged at the front end of the sampler main body, a sealing part with a semi-spherical hollow structure is arranged at the orifice of the sampling tube, and a first sealing ring is coaxially arranged on the orifice of the sampling tube on the outer side of the sealing part. A second sealing ring consistent with the first sealing ring in structure is arranged at the bottom of the first sealing ring, a clamping mechanism used for clamping a sampling bottle is arranged at the bottom of the sampler main body under the sampling pipe, and the sampling bottle and the sampling pipe are tightly attached during sampling through a double-sealing structure that a sealing part is matched with the first sealing ring and the second sealing ring; the sampling object is prevented from leaking from the joint of the sampling bottle and the sampling tube during sampling, and the sealing performance and the stability of the joint of the sampling bottle and the sampling tube are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of samplers, in particular to a sampler with good sampling sealing. Background Art

[0002] During the production process of chemical companies, it is necessary to sample and analyze their products. In order to collect samples in a timely manner and prevent sample volatilization, suitable sampler equipment is required for sampling.

[0003] When the existing sampler is in use, the sealing effect of the connection between the sampling tube and the sampling bottle is not good, which is easy to loosen and cause leakage of the sampled material. It is also inconvenient to fix the sampling bottle, and the stability is low during sampling, resulting in poor use effect. Utility Model Content

[0004] The purpose of the utility model is to provide a sampler with good sampling seal to solve the problems that the existing sampler is not convenient to fix the sampling bottle when in use, the sealing effect of the connection between the sampling tube and the sampling bottle is not good, it is easy to loosen and cause the sample to leak, the stability is low during sampling, and the use effect is not good.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sampler with good sampling seal comprises a sampler body, a sampling tube connected to the sampler body is arranged at the front end of the sampler body, a sealing part with a semi-spherical hollow structure is arranged at the mouth of the sampling tube, a first sealing ring is coaxially arranged on the mouth of the sampling tube outside the sealing part, a second sealing ring with the same structure as the first sealing ring is arranged at the bottom of the first sealing ring, a clamping mechanism for clamping a sampling bottle is arranged at the bottom of the sampler body directly below the sampling tube, a first sealing groove matching with the first sealing ring is opened on the top end face of the sampling bottle, and a second sealing groove matching with the second sealing ring is opened on the mouth of the sampling bottle at the bottom of the first sealing groove.

[0007] As a preferred technical solution of the utility model, the clamping mechanism includes an electric push rod, a support base is provided on the telescopic shaft of the electric push rod, a cylindrical gear is movably connected at the center of the support base, a first driving member and a second driving member are plugged and installed in the support base, and the second driving member and the first driving member are staggered in height and cross-distributed.

[0008] As a preferred technical solution of the utility model, the first driving member or the second driving member includes two oppositely arranged driving plates, and the inner end surfaces of the driving plates are respectively provided with parallel driving rods and sliding rods, and the other end of the driving rod is provided with a sliding groove for inserting the sliding rod on the other driving plate connected thereto, and the top end surface of the driving plate is provided with a limiting plate with an arc-shaped inner wall.

[0009] As a preferred technical solution of the utility model, a buffer spring is sleeved on the slide rod outside the slide groove, one end of the buffer spring is fixedly connected to the drive plate, and the other end of the buffer spring is fixedly connected to the drive rod.

[0010] As a preferred technical solution of the utility model, the inner end surface of the driving rod is provided with gear teeth that mesh with the cylindrical gear.

[0011] As a preferred technical solution of the utility model, the height of the cylindrical gear is consistent with the sum of the heights of the two driving rods.

[0012] As a preferred technical solution of the utility model, a positioning block is provided at the center of the top end surface of the support base, and a positioning groove that fits with the positioning block is opened on the bottom end surface of the sampling bottle.

[0013] As a preferred technical solution of the utility model, the top end surface of the support base is covered with an anti-slip layer.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model adopts a double sealing structure of a sealing part cooperating with a first sealing ring and a second sealing ring, so that the sampling bottle and the sampling tube are tightly fitted during sampling, thereby avoiding leakage of the sample from the connection between the sampling bottle and the sampling tube during sampling, and improving the sealing and stability of the connection between the sampling bottle and the sampling tube.

[0016] 2. The utility model can clamp and fix sampling bottles of different sizes and models through the setting of the clamping mechanism, thereby improving the application range and versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the sampling tube of the utility model;

[0019] Figure 3 This is a cross-sectional view of the connection between the sampling tube and the sampling bottle of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the clamping mechanism of the utility model;

[0021] Figure 5 This is a connection diagram of the cylindrical gear and the first driving member and the second driving member of the utility model;

[0022] In the figure: 1. Sampler body; 2. Sampling tube; 21. Sealing part; 22. First sealing ring; 23. Second sealing ring; 3. Sampling bottle; 31. First sealing groove; 32. Second sealing groove; 33. Positioning groove; 4. Clamping mechanism; 41. Electric push rod; 42. Support base; 43. Cylindrical gear; 44. First driving member; 45. Second driving member; 451. Driving plate; 452. Driving rod; 453. Sliding rod; 454. Sliding groove; 455. Buffer spring; 456. Limiting plate; 46. Positioning block. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] Example

[0026] refer to Figure 1-Figure 5 A sampler with good sampling seal includes a sampler body 1, a sampling tube 2 connected to the sampler body 1 is provided at the front end of the sampler body 1, and a clamping mechanism 4 for clamping a sampling bottle 3 is provided at the bottom of the sampler body 1 directly below the sampling tube 2.

[0027] refer to Figure 2 A sealing portion 21 with a semi-spherical hollow structure is provided at the mouth of the sampling tube 2, a first sealing ring 22 is coaxially provided on the mouth of the sampling tube 2 outside the sealing portion 21, and a second sealing ring 23 with the same structure as the first sealing ring 22 is provided at the bottom of the first sealing ring 22. The double sealing structure of the sealing portion 21 and the first sealing ring 22 and the second sealing ring 23 makes the sampling bottle 3 and the sampling tube 2 fit tightly during sampling, thereby avoiding leakage of the sample from the connection between the sampling bottle 3 and the sampling tube 2 during sampling, and improving the sealing and stability of the connection between the sampling bottle 3 and the sampling tube 2.

[0028] refer to Figure 3A first sealing groove 31 that matches the first sealing ring 22 is formed on the top end surface of the sampling bottle 3 , and a second sealing groove 32 that matches the second sealing ring 23 is formed on the bottle mouth of the sampling bottle 3 at the bottom of the first sealing groove 31 .

[0029] refer to Figure 4-Figure 5 The clamping mechanism 4 includes an electric push rod 41, a support base 42 is provided on the telescopic axis of the electric push rod 41, a cylindrical gear 43 is movably connected at the center of the support base 42, a first driving member 44 and a second driving member 45 are inserted and installed in the support base 42, and the second driving member 45 and the first driving member 44 are staggered in height and cross-distributed.

[0030] Among them, the first driving member 44 or the second driving member 45 includes two oppositely arranged driving plates 451, and the inner end surfaces of the driving plates 451 are respectively provided with parallel driving rods 452 and sliding rods 453, and the other end of the driving rod 452 is provided with a sliding groove 454 for plugging the sliding rod 453 on another driving plate 451 connected thereto, and the top end surface of the driving plate 451 is provided with a limiting plate 456 with an arc-shaped inner wall, and a buffer pad is bonded to the inner wall of the limiting plate 456, and the buffer pad can protect the outer wall of the sampling bottle 3 when the limiting plate 456 clamps the sampling bottle 3.

[0031] Furthermore, a buffer spring 455 is sleeved on the slide rod 453 outside the slide groove 454, one end of the buffer spring 455 is fixedly connected to the driving plate 451, and the other end of the buffer spring 455 is fixedly connected to the driving rod 452. Under the elastic action of the buffer spring 455, the buffer spring 455 and the slide rod 453 shrink and drive the driving rod 452 to tighten each other, thereby driving the limiting plate 456 to clamp and fix the sampling bottle 3, thereby improving the stability of the sampling bottle 3 on the clamping mechanism 4.

[0032] Furthermore, the inner end surface of the driving rod 452 is provided with gear teeth that mesh with the cylindrical gear 43 .

[0033] More specifically, the height of the cylindrical gear 43 is consistent with the sum of the heights of the two driving rods 452 .

[0034] Furthermore, a positioning block 46 is provided at the center of the top end surface of the support base 42, and a positioning groove 33 is provided on the bottom end surface of the sampling bottle 3 to match the positioning block 46. The positioning groove 33 and the positioning block 46 are matched to each other, so that the placement of the sampling bottle 3 can be positioned, ensuring that the center of the sampling bottle 3 and the center of the inner diameter of the sampling tube 2 are on the same vertical line, so that the sampling bottle 3 is accurately connected to the sampling tube 2, thereby improving the sampling connection speed and thus improving the sampling efficiency.

[0035] Preferably, the top end surface of the support base 42 is covered with an anti-skid layer. By providing the anti-skid layer, the anti-skid property of the connection between the sampling bottle 3 and the support base 42 is improved.

[0036] The working principle of this utility model:

[0037] During operation, the staff selects sampling bottles 3 of different sizes according to needs, stretches one of the driving plates 451 outward, and the driving plate 451 drives the driving rod 452 to move outward, and the gear teeth on the inner side of the driving rod 452 mesh with the cylindrical gear 43 to drive the cylindrical gear 43 to rotate, and the rotation of the cylindrical gear 43 drives the remaining driving rods 452 to move outward, so that the clamping center is always at the center position of the cylindrical gear 43, and at the same time, the sliding rod 453 and the buffer spring 455 are also stretched, and the buffer spring 455 undergoes elastic deformation. When it is stretched to a suitable position, the positioning groove 33 on the bottom end face of the sampling bottle 3 is aligned with the positioning block 46 on the top end face of the supporting base 42 for plugging, and then the driving plate 451 is released. Under the elastic action of the buffer spring 455, the buffer spring 455 and the sliding rod 45 3 contracts and drives the driving rod 452 to tighten each other, thereby driving the limiting plate 456 to clamp and fix the sampling bottle 3, and then starting the electric push rod 41, the electric push rod 41 drives the supporting base 42 and the sampling bottle 3 to move upward, when the bottle mouth of the sampling bottle 3 conflicts with the sealing part 21 of the sampling tube 2, the electric push rod 41 stops working, at this time, the bottom of the first sealing ring 22 and the second sealing ring 23 outside the sealing part 21 are respectively inserted into the first sealing groove 31 and the second sealing groove 32 on the sampling bottle 3, through the double sealing structure of the sealing part 21 and the first sealing ring 22 and the second sealing ring 23, the sampling bottle 3 and the sampling tube 2 are tightly fitted during sampling, avoiding leakage of the sample from the connection between the sampling bottle 3 and the sampling tube 2 during sampling, and improving the sealing and stability of the connection between the sampling bottle 3 and the sampling tube 2.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A sampler with good sampling seal, comprising a sampler body (1), characterized in that: A sampling tube (2) connected to the sampler body (1) is provided at the front end of the sampler body (1); a sealing portion (21) with a semi-spherical hollow structure is provided at the mouth of the sampling tube (2); a first sealing ring (22) is coaxially provided on the mouth of the sampling tube (2) outside the sealing portion (21); a second sealing ring (23) having the same structure as the first sealing ring (22) is provided at the bottom of the first sealing ring (22); a clamping mechanism (4) for clamping a sampling bottle (3) is provided at the bottom of the sampler body (1) directly below the sampling tube (2); a first sealing groove (31) matching with the first sealing ring (22) is provided on the top end surface of the sampling bottle (3); a second sealing groove (32) matching with the second sealing ring (23) is provided on the mouth of the sampling bottle (3) at the bottom of the first sealing groove (31).

2. A sampler with good sampling seal according to claim 1, characterized in that: The clamping mechanism (4) comprises an electric push rod (41), a support base (42) is provided on the telescopic shaft of the electric push rod (41), a cylindrical gear (43) is movably connected at the center of the support base (42), a first driving member (44) and a second driving member (45) are inserted and installed in the support base (42), and the second driving member (45) and the first driving member (44) are staggered in height and cross-distributed.

3. A sampler with good sampling seal according to claim 2, characterized in that: The first driving member (44) or the second driving member (45) comprises two driving plates (451) arranged opposite to each other, and the inner end surfaces of the driving plates (451) are respectively provided with parallel driving rods (452) and sliding rods (453), and the other end of the driving rod (452) is provided with a sliding groove (454) for plugging the sliding rod (453) on another driving plate (451) connected thereto, and the top end surface of the driving plate (451) is provided with a limiting plate (456) with an inner side wall having an arc-shaped structure.

4. A sampler with good sampling seal according to claim 3, characterized in that: A buffer spring (455) is sleeved on the slide bar (453) outside the slide groove (454), one end of the buffer spring (455) is fixedly connected to the driving plate (451), and the other end of the buffer spring (455) is fixedly connected to the driving rod (452).

5. The sampler with good sampling seal according to claim 3, characterized in that: The inner end surface of the driving rod (452) is provided with gear teeth that mesh with the cylindrical gear (43).

6. A sampler with good sampling seal according to claim 2, characterized in that: The height of the cylindrical gear (43) is consistent with the sum of the heights of the two driving rods (452).

7. A sampler with good sampling seal according to claim 2, characterized in that: A positioning block (46) is provided at the center of the top end surface of the support base (42), and a positioning groove (33) that fits with the positioning block (46) is provided at the bottom end surface of the sampling bottle (3).

8. The sampler with good sampling seal according to claim 2, characterized in that: The top end surface of the support base (42) is covered with an anti-slip layer.

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