CN218546276U - Self-cleaning sampling head - Google Patents

Abstract

The utility model discloses a self-cleaning formula sampling head belongs to dust concentration detection technical field, including shell main part and sampling head main part and, the lantern ring is installed to the inside bottom of shell main part, the inner wall of shell main part all is provided with the internal thread, the inside of shell main part is provided with the sampling head main part, first sampling hole has been seted up to the inside of sampling head main part, the outer wall of sampling head main part all is provided with the external screw thread, the inside of sampling head main part is provided with the collar, and the top of collar is provided with the collar, the filter screen is installed to the inner wall of collar. The beneficial effects of the utility model are that through mutually supporting of installation circle and mounting groove, be convenient for insert the inside of mounting groove with the installation circle, simultaneously through the design of filter screen, be convenient for can filter the impurity in the air through the filter screen, avoid a large amount of impurity in the air to get into the inside of sampling head, make this sampling head can carry out the automatically cleaning.

Description

Self-cleaning sampling head

technical field

The utility model relates to the field of dust concentration detection, in particular to a self-cleaning sampling head.

Background technique

Dust concentration detectors mainly include capacitance method, β-ray method, light scattering method, light absorption method, triboelectric method, ultrasonic method, microwave method and other dust concentration online measurement methods. There is not a one-to-one linear relationship between them, and the measured value of the capacitance is easily affected by the phase distribution and flow pattern changes, resulting in large measurement errors; although the B-ray method is accurate, it needs to sample the dust for comparison and measurement, which is very difficult. It is difficult to realize the online monitoring of dust concentration. The light scattering method and the light absorption method sampling head are mainly used to sample the air in the market. When the dust concentration detector samples the air, it needs to sample the air through the sampling head, so it needs A sampling head to meet people's needs:

(1) Most of the sampling heads currently on the market, when sampling the air for a long time, are likely to cause a large amount of impurities in the air to enter the interior of the sampling head, thereby adhering to the inside of the sampling head and affecting the sampling effect of the sampling head. At the same time, the filter screen and the sampling head cannot be disassembled and cleaned, thereby increasing the labor intensity of the operator.

Utility model content

The purpose of this utility model is to provide a self-cleaning sampling head to solve the problems raised in the above-mentioned background technology.

The technical solution of the utility model is: a self-cleaning sampling head, including a housing body and a sampling head body, a collar is installed at the bottom end inside the housing body, internal threads are provided on the inner wall of the housing body, the The inside of the housing body is provided with a sampling head body, the inside of the sampling head body is provided with a first sampling hole, the outer walls of the sampling head body are all provided with external threads, the inside of the sampling head body is provided with a mounting ring, and An installation ring is arranged on the top of the installation ring, and a filter screen is installed on the inner wall of the installation ring.

Further, the external thread and the internal thread are screwed together.

Further, the top ends of the mounting rings are all equipped with fixing frames, and one end of the fixing frames close to each other is hinged with a hinge plate, and the bottom end of the hinge plate is installed with an extrusion plate, and the bottom end of the hinge plate is far away from the extrusion plate A spring main body is installed at one end of the spring main body, and the bottom end of the spring main body is connected with the top end of the installation ring.

Further, the outer wall of the extruded plate is provided with a rubber pad.

Further, the shape of the first sampling hole is conical.

Further, a second sampling hole is opened on the side wall of one side of the main body of the sampling head, and the shape of the second sampling hole is tapered.

Further, the inside of the sampling head main body is provided with a mounting groove, and the mounting groove and the mounting ring cooperate with each other.

The utility model provides a self-cleaning sampling head through improvement. Compared with the prior art, it has the following improvements and advantages:

One: the self-cleaning sampling head of the utility model, through the first sampling hole, installation ring, installation ring, filter screen, second sampling hole and installation groove, through the design of the first sampling hole and the second sampling hole, it is convenient to pass through The second sampling hole and the first sampling hole are used to sample the air. At the same time, through the mutual cooperation of the installation ring and the installation groove, it is convenient to insert the installation ring into the inside of the installation groove. Filter the impurities in the air to prevent a large amount of impurities in the air from entering the inside of the sampling head, so that the sampling head can be self-cleaning;

Second: The self-cleaning sampling head of the utility model, through the installation ring, the fixed frame, the hinged plate, the extrusion plate and the spring main body, presses one end of the hinged plate, and is hinged with the fixed frame through the hinged plate, so that the hinged plate is in the While being pressed, one end of the hinged plate descends and squeezes the spring body to deform, thereby causing the other end of the hinged plate to tilt up, so that it is convenient for the operator to disassemble the installation ring and the filter net, and it is convenient for the installation ring, the filter net and the installation ring Disassembly and cleaning are carried out, thereby reducing the labor intensity of the operator.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further explained:

Fig. 1 is the assembly structure schematic diagram of the present utility model;

Fig. 2 is a schematic structural view of the main body of the sampling head of the present invention;

Fig. 3 is the schematic diagram of enlarged structure at A place in Fig. 2 of the present utility model;

Fig. 4 is the structural representation of the hinged plate of the present utility model;

Fig. 5 is a schematic diagram of the front view of the main body of the housing of the present invention;

Fig. 6 is the front structural schematic diagram of the utility model;

Explanation of reference numerals: 1. Shell main body; 2. Collar; 3. Sampling head main body; 4. First sampling hole; 5. Mounting ring; 501, fixing frame; 502, hinged plate; , spring main body; 6, installation ring; 7, filter screen; 8, external thread; 9, internal thread; 10, second sampling hole; 11, installation groove.

Detailed ways

The utility model will be described in detail below in conjunction with accompanying drawings 1 to 6, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than Full examples. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The utility model provides a self-cleaning sampling head through improvement,

Embodiment 1, as shown in Fig. 1 and Fig. 2, comprises housing main body 1 and sampling head main body 3 and, the bottom end inside housing main body 1 is equipped with collar 2, and the inner wall of housing main body 1 is all provided with internal thread 9, housing The inside of the main body 1 is provided with a sampling head main body 3, the inside of the sampling head main body 3 is provided with a first sampling hole 4, the shape of the first sampling hole 4 is conical, and the side wall of the sampling head main body 3 is provided with a second sampling hole hole 10, and the shape of the second sampling hole 10 is conical, the outer wall of the sampling head main body 3 is provided with an external thread 8, the external thread 8 and the internal thread 9 are threaded, and the inside of the sampling head main body 3 is provided with a mounting ring 5, The interior of the sampling head main body 3 is provided with a mounting groove 11, and the mounting groove 11 cooperates with the mounting ring 5. Through the design of the mounting ring 6 and the filter screen 7, the impurity in the air can be filtered by the filter screen 7 to avoid air pollution. A large number of impurities in the sample enter the interior of the sampling head;

Embodiment 2, as shown in Figure 1, Figure 3 and Figure 4, the top of the mounting ring 5 is equipped with a fixed frame 501, and one end of the fixed frame 501 close to each other is hinged with a hinged plate 502, and the bottom end of the hinged plate 502 is equipped with a Squeeze plate 503, the bottom end of hinge plate 502 is equipped with spring main body 504 away from the end of extrude plate 503, and the bottom end of spring main body 504 is connected with the top of mounting ring 5, and the outer wall of squeeze plate 503 is provided with rubber pad, And the top of the mounting ring 5 is provided with a mounting ring 6, and the inner wall of the mounting ring 6 is equipped with a filter screen 7; when the hinged plate 502 is pressed, one end of the hinged plate 502 descends and squeezes the spring main body 504 to deform, thereby making the hinged The other end of the plate 502 is tilted up, so that it is convenient for the operator to disassemble the installation ring 6 and the filter screen 7 , and it is convenient to disassemble and clean the installation ring 6 , the filter screen 7 and the installation ring 5 .

Working principle: First, through the design of the first sampling hole 4 and the second sampling hole 10, it is convenient to sample the air through the second sampling hole 10 and the first sampling hole 4, and through the design of the installation ring 6 and the filter screen 7, It is convenient to filter the impurities in the air through the filter screen 7, avoiding a large amount of impurities in the air from entering the inside of the sampling head, so that the sampling head can be self-cleaning, and at the same time, it is threaded through the external thread 8 and the internal thread 9, which is convenient for rotation The shell body 1 is used to disassemble the shell body 1;

At the same time, by pressing one end of the hinged plate 502 and being hinged to the fixed frame 501 through the hinged plate 502, the hinged plate 502 is pressed while one end of the hinged plate 502 descends and squeezes the spring main body 504 to deform, thereby making the hinged plate 502 The other end is tilted up, so that it is convenient for the operator to disassemble the installation ring 6 and the filter screen 7, and it is convenient to disassemble and clean the installation ring 6, the filter screen 7 and the installation ring 5, thereby reducing the labor intensity of the operator.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. Self-cleaning sampling head, characterized in that it includes a housing body (1) and a sampling head body (3) and a collar (2) is installed at the bottom of the housing body (1), the housing body The inner walls of (1) are provided with internal threads (9), the inside of the housing body (1) is provided with a sampling head body (3), and the inside of the sampling head body (3) is provided with a first sampling hole (4 ), the outer wall of the sampling head body (3) is provided with external threads (8), the interior of the sampling head body (3) is provided with a mounting ring (5), and the top of the mounting ring (5) is provided with a mounting ring (6), and a filter screen (7) is installed on the inner wall of the installation ring (6). 2. The self-cleaning sampling head according to claim 1, characterized in that the external thread (8) and the internal thread (9) are threadedly connected. 3. The self-cleaning sampling head according to claim 1, characterized in that: the top of the mounting ring (5) is equipped with a fixing frame (501), and one end of the fixing frame (501) close to each other is hinged with a hinge plate (502), the bottom end of the hinged plate (502) is equipped with an extrusion plate (503), and the end of the bottom end of the hinged plate (502) away from the extrusion plate (503) is equipped with a spring body (504), And the bottom end of the spring body (504) is connected with the top end of the installation ring (5). 4. The self-cleaning sampling head according to claim 3, characterized in that: the outer wall of the extruding plate (503) is provided with a rubber pad. 5. The self-cleaning sampling head according to claim 1, characterized in that: the shape of the first sampling hole (4) is conical. 6. The self-cleaning sampling head according to claim 1, characterized in that: a second sampling hole (10) is opened on the side wall of the sampling head body (3), and the second sampling hole (10) The shape is conical. 7. The self-cleaning sampling head according to claim 1, characterized in that: the inside of the sampling head body (3) is provided with a mounting groove (11), and the mounting groove (11) and the mounting ring (5) are mutually Cooperate.

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