CN212748614U - Low-concentration weighing constant-temperature and constant-humidity equipment for detecting exhaust gas particulate matters - Google Patents
Low-concentration weighing constant-temperature and constant-humidity equipment for detecting exhaust gas particulate matters Download PDFInfo
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- CN212748614U CN212748614U CN202021344353.0U CN202021344353U CN212748614U CN 212748614 U CN212748614 U CN 212748614U CN 202021344353 U CN202021344353 U CN 202021344353U CN 212748614 U CN212748614 U CN 212748614U
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Abstract
The utility model discloses a constant temperature and humidity equipment is weighed to low concentration for detecting exhaust gas particulate matter, including constant temperature and humidity case, be provided with the sampling mouth support in the inner chamber of constant temperature and humidity case: the inner cavity of the constant temperature and humidity box comprises an operation cavity and an accommodating cavity for accommodating the sampling nozzle support, and the accommodating cavity is connected above the operation cavity; the sampling nozzle support is arranged in the operation cavity and the accommodating cavity in a lifting manner; the sampling nozzle support is characterized by further comprising a locking mechanism, and the locking mechanism is used for locking the sampling nozzle support in the containing cavity. The low-concentration weighing constant-temperature and constant-humidity device for detecting the exhaust gas particles can move in the operation cavity and the containing cavity through the sampling nozzle support, and the batch sampling nozzles are convenient to store and take; utilize locking mechanical system to lock the sampling mouth support in accommodating the intracavity, avoid taking the activity space of operating personnel hand, guarantee going on smoothly of exhaust gas particulate matter detection.
Description
Technical Field
The utility model relates to a detecting instrument field, in particular to a constant temperature and humidity equipment is weighed to low concentration for detecting exhaust gas particulate matter.
Background
Constant temperature and humidity equipment is weighed to low concentration is applicable to the weight of the manual low concentration particulate matter such as weighing fixed pollution source waste gas, and this equipment can guarantee that detection environment and external world effectively keep apart, utilizes the high accuracy electronic balance of constant temperature and humidity incasement can accurately weigh out the result, avoids the influence of temperature and humidity to weighing.
Among the constant temperature and humidity equipment is weighed to current low concentration, can set up the support on the both sides wall of constant temperature and humidity incasement usually for put the sampling mouth of collecting the exhaust gas particulate matter. However, in the using process of the device, the bracket and the sampling nozzle occupy certain space, so that the movable space of the operating gloves in the box body is reduced, and the weighing operation is not facilitated; in addition, because the space is narrow and small in the constant temperature and humidity case, the sampling mouth quantity that can deposit on the support is limited, consequently is unfavorable for carrying out the weighing detection of sampling mouth in batches. Therefore, there is a need for improvement of the existing low-concentration weighing constant-temperature and constant-humidity equipment.
SUMMERY OF THE UTILITY MODEL
To the above prior art, the to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the low-concentration weighing constant-temperature and constant-humidity equipment which is convenient to operate and suitable for weighing and detecting the waste gas particles of the batch sampling nozzle is provided.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a constant temperature and humidity equipment is weighed to low concentration for detecting exhaust gas particulate matter, includes constant temperature and humidity case, be provided with the sampling mouth support in the inner chamber of constant temperature and humidity case: the inner cavity of the constant temperature and humidity box comprises an operation cavity and an accommodating cavity for accommodating the sampling nozzle support, and the accommodating cavity is connected above the operation cavity; the sampling nozzle support is arranged in the operation cavity and the accommodating cavity in a lifting manner; the sampling nozzle support is characterized by further comprising a locking mechanism, and the locking mechanism is used for locking the sampling nozzle support in the containing cavity.
Preferably, a vertical rod is arranged in the constant temperature and humidity box, a rotating pipe is sleeved outside the vertical rod, and the periphery of the rotating pipe is fixedly connected with the sampling nozzle support.
Preferably, the rotating pipe is connected with a first limiting part, and the first limiting part is in clearance fit with the circumferential side face of the vertical rod.
Preferably, the vertical rod is connected with a second limiting part, and the second limiting part is arranged below the first limiting part.
Preferably, the sampling nozzle support is provided with a jack, and a third limiting part matched with the two sides of the sampling nozzle is connected above the sampling nozzle support.
Preferably, an electronic balance is arranged in the operation cavity, and the accommodating cavity is arranged above the side of the electronic balance.
Preferably, the locking mechanism comprises a fixed part and a movable part which are matched in a locking mode, the fixed part is fixed in the constant temperature and humidity box, the movable part is fixedly connected with the rotating pipe, and the moving path of the movable part is intersected with the fixed part.
Preferably, the fixed piece and the movable piece are a locking groove and a locking protrusion; or the fixed piece and the movable piece are a locking socket and a locking plug-in.
In summary, compared with the prior art, the low-concentration weighing constant-temperature and constant-humidity equipment for detecting the exhaust gas particulate matters of the utility model has the advantages that the sampling nozzle bracket can move in the operation cavity and the containing cavity, thereby facilitating the access of the batch sampling nozzles; utilize locking mechanical system to lock the sampling mouth support in accommodating the intracavity, avoid taking the activity space of operating personnel hand, guarantee going on smoothly of exhaust gas particulate matter detection.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a constant temperature and humidity chamber of embodiment 1 of the present invention;
fig. 3 is a schematic structural view of an accommodating chamber according to embodiment 1 of the present invention;
fig. 4 is a top view of a sampling nozzle holder according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of an accommodating chamber according to embodiment 2 of the present invention;
fig. 6 is a top view of a sampling nozzle holder according to embodiment 2 of the present invention;
fig. 7 is a plan view of a lock mechanism according to embodiment 2 of the present invention;
fig. 8 is a schematic structural view of a receiving cavity according to embodiment 3 of the present invention;
fig. 9 is a top view of a sampling nozzle holder according to embodiment 3 of the present invention;
in the figure: 1. the constant temperature and humidity box comprises a constant temperature and humidity box body, an operation cavity, a containing cavity, a sampling nozzle support, a jack, a third limiting part, a locking mechanism, a fixing part, a movable part, a vertical rod, a rotating pipe, a first limiting part, a second limiting part, an electronic balance and a sampling nozzle, wherein the constant temperature and humidity box body comprises a constant temperature and humidity box body 1a, an operation cavity 1b, a containing cavity 2, the sampling nozzle support, a jack, a third limiting part 2b, a locking mechanism 3, a fixing part 3a, a movable.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1 to 4, the low-concentration weighing constant-temperature and constant-humidity apparatus for detecting exhaust gas particulate matter of embodiment 1 includes a constant-temperature and constant-humidity chamber 1; the inner cavity of the constant temperature and humidity box 1 comprises an operation cavity 1a and two containing cavities 1b, an electronic balance 8 is arranged in the operation cavity 1a, and the two containing cavities 1b are respectively arranged on two sides right above the electronic balance 8 and connected with the operation cavity 1 a; a sampling nozzle bracket 2 and a locking mechanism 3 are arranged in the inner cavity of the constant temperature and humidity box 1; the sampling nozzle bracket 2 is arranged in the operation cavity 1a and the containing cavity 1b in a lifting way; the locking mechanism 3 is used for locking the sampling nozzle support 2 in the containing cavity 1b, and the containing cavity 1b is arranged above the side of the electronic balance 8; the sampling nozzle support 2 has three layers, and six jacks are arranged on each layer of sampling nozzle support 2 and used for placing sampling nozzles 9.
When the device of the embodiment is used, the sampling nozzle support 2 is moved into the operation cavity 1a, the sampling nozzle 9 is taken out for weighing, after the weighing is completed, the sampling nozzle 9 is put back, the sampling nozzle support 2 is moved into the accommodating cavity 1b, and the position of the sampling nozzle support 2 is locked through the locking mechanism 3. Two are acceptd chamber 1b and are divided and locate electronic balance 8 both sides directly over, make things convenient for operating personnel's both hands to accept chamber 1b operation respectively on the one hand, and on the other hand guarantees that sampling mouth support 2 has sufficient activity space in vertical direction.
A vertical rod 4 is fixedly arranged on the top surface in the accommodating cavity 1b, a rotating tube 5 is sleeved outside the vertical rod 4, and the periphery of the rotating tube 5 is fixedly connected with the sampling nozzle support 2, as shown in fig. 3 and 4. The rotating tube 5 can move along the axial lead direction of the vertical rod 4, enters the operation cavity 1a or the containing cavity 1b, can rotate around the vertical rod 4, and is convenient for the sampling nozzle 9 to take and place.
The top of the rotating tube 5 is fixedly connected with an annular first limiting part 6, the inner ring of the first limiting part 6 is in clearance fit with the circumferential side surface of the vertical rod 4, and the periphery of the bottom of the vertical rod 4 is fixedly connected with four second limiting parts 7, as shown in fig. 4. The first limiting part 6 is in clearance fit with the vertical rod 4, so that the rotating tube 5 is stable in moving and rotating, and the sampling nozzle support 2 is prevented from obliquely swinging; the second limiting part 7 is used for blocking the first limiting part 6, so that the moving range of the rotating pipe 5 is limited, and the rotating pipe is prevented from separating from the vertical rod 4.
The locking mechanism 3 includes a fixed member 3a and a movable member 3b which are locked and matched, wherein the fixed member 3a includes a horizontal portion extending toward the vertical rod 4, the movable member 3b is fixedly connected with the rotating tube 5 and fixed in the accommodating cavity 1b, and a moving path of the movable member 3b intersects with the horizontal portion, as shown in fig. 3. When the sampling nozzle needs to be locked, the rotating pipe 5 drives the moving piece 3b to rise to a position higher than the horizontal part, then the rotating pipe 5 rotates the moving piece 3b to a position right above the horizontal part, the rotating pipe 5 moves downwards, the moving piece 3b is in contact with the horizontal part, and the sampling nozzle support 2 is suspended in the accommodating cavity 1b to complete locking. When the sampling nozzle 9 needs to be taken and placed, the movable piece 3b is rotated to be separated from the fixed piece 3a through the rotating pipe 5, and the rotating pipe 5 can move downwards, so that the sampling nozzle support 2 enters the operation cavity 1a.
It should be noted that the number of the sampling nozzle holders 2 and the number of the insertion holes 2a may be other numbers, so as to achieve the effect of batch storage.
Example 2
As shown in fig. 5 to 7, the low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter of embodiment 2 is based on embodiment 1, and is different in that a third limiting member 2b matched with two sides of a sampling nozzle is connected above a sampling nozzle support 2, and the third limiting member 2b is plate-shaped; the movable piece 3b is a locking groove with a downward notch, and the fixed piece 3a is a locking bulge and is fixedly connected with the top surface in the operation cavity 1 a; the first locating parts 6 are two limiting blocks which are symmetrically distributed and fixed in the rotating pipe 5, the limiting blocks are in clearance fit with the circumferential side face of the vertical rod 4, and the second locating parts 7 are convex discs fixed at the bottom end of the vertical rod 4 and located on the inner side of the rotating pipe 5.
In this embodiment, the positions and shapes of the first stopper 6 and the second stopper 7 are different from those in embodiment 1, but the same technical effects as those in embodiment 1 can be obtained. In addition to the above differences, the present embodiment is further modified as follows:
firstly, the third limiting parts 2b are utilized to limit the sampling mouth 9 from two sides, as shown in fig. 5 and 6, so that the sampling mouth 9 is placed more stably;
secondly, the shapes of the movable piece 3b and the fixed piece 3a are changed, and when the locking is carried out, the locking groove is downwards sleeved on the locking protrusion, as shown in fig. 7, so that the rotating tube 5 and the sampling nozzle support 2 are prevented from rotating. Similarly, when the fixing member 3a is a locking groove with an upward notch and the moving member 3b is a locking protrusion, the above locking effect can be achieved.
Example 3
As shown in fig. 8 and 9, the low-concentration weighing constant-temperature and constant-humidity apparatus for detecting exhaust gas particulate matter of embodiment 3 is based on embodiment 2, except that the second limiting member 7 is a convex disc fixed to the bottom end of the vertical rod 4, and the outer diameter of the convex disc is larger than the inner diameter of the rotating pipe 5; the movable piece 3b is provided with a locking socket, and the fixed piece 3a is a locking plug-in piece which is matched with the locking socket and extends upwards; the two third limiting members 2b are in the shape of convex rods.
In this embodiment, since the outer diameter of the second limiting member 7 is larger than the inner diameter of the rotating tube 5, the rotating tube 5 cannot pass through the second limiting member 7, so that the moving range of the rotating tube 5 is limited; when locking, the locking socket on the movable piece 3b is sleeved outside the locking plug-in piece on the fixed piece 3a, as shown in fig. 8, the rotating tube 6 and the sampling nozzle bracket 2 can also be prevented from rotating; similarly, the locking sockets can be provided on the fixed part 3a and the corresponding rotating part 3b is a locking insert extending downward, which also achieves the above-mentioned effects. On the other hand, the two third limiting members 2b limit the sampling nozzles 9 from both sides, so that the sampling nozzles 9 are placed more stably.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a constant temperature and humidity equipment is weighed to low concentration for detecting exhaust gas particulate matter, includes constant temperature and humidity case (1), be provided with sampling mouth support (2), its characterized in that in the inner chamber of constant temperature and humidity case (1):
the inner cavity of the constant temperature and humidity box (1) comprises an operation cavity (1 a) and an accommodating cavity (1 b) for accommodating the sampling nozzle support (2), and the accommodating cavity (1 b) is connected above the operation cavity (1 a);
the sampling nozzle support (2) is arranged in the operation cavity (1 a) and the containing cavity (1 b) in a lifting mode;
the sampling nozzle support is characterized by further comprising a locking mechanism (3), wherein the locking mechanism (3) is used for locking the sampling nozzle support (2) in the containing cavity (1 b).
2. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to claim 1, characterized in that: be provided with montant (4) in constant temperature and humidity case (1), montant (4) overcoat is equipped with rotating-tube (5), the periphery of rotating-tube (5) with sampling mouth support (2) fixed connection.
3. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to claim 2, characterized in that: the rotating pipe (5) is connected with a first limiting part (6), and the first limiting part (6) is in clearance fit with the circumferential side face of the vertical rod (4).
4. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to claim 3, characterized in that: the vertical rod (4) is connected with a second limiting part (7), and the second limiting part (7) is arranged below the first limiting part (6).
5. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to claim 1, characterized in that: the sampling nozzle is characterized in that a jack (2 a) is formed in the sampling nozzle support (2), and a third limiting part (2 b) matched with the two sides of the sampling nozzle is connected to the upper portion of the sampling nozzle support (2).
6. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to claim 1, characterized in that: an electronic balance (8) is arranged in the operation cavity (1 a), and the accommodating cavity (1 b) is arranged above the side of the electronic balance (8).
7. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to any one of claims 2 to 4, characterized in that: locking mechanical system (3) are including locking complex mounting (3 a) and moving part (3 b), mounting (3 a) are fixed in constant temperature and humidity case (1), moving part (3 b) with rotating tube (5) fixed connection, the activity route of moving part (3 b) with mounting (3 a) are crossing.
8. The low-concentration weighing constant-temperature and constant-humidity device for detecting exhaust gas particulate matter according to claim 7, characterized in that: the fixed piece (3 a) and the movable piece (3 b) are locking grooves and locking protrusions; or the fixed part (3 a) and the movable part (3 b) are a locking socket and a locking plug-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021344353.0U CN212748614U (en) | 2020-07-10 | 2020-07-10 | Low-concentration weighing constant-temperature and constant-humidity equipment for detecting exhaust gas particulate matters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021344353.0U CN212748614U (en) | 2020-07-10 | 2020-07-10 | Low-concentration weighing constant-temperature and constant-humidity equipment for detecting exhaust gas particulate matters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212748614U true CN212748614U (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021344353.0U Active CN212748614U (en) | 2020-07-10 | 2020-07-10 | Low-concentration weighing constant-temperature and constant-humidity equipment for detecting exhaust gas particulate matters |
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| Country | Link |
|---|---|
| CN (1) | CN212748614U (en) |
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