Handheld particle counter

Abstract

The utility model relates to the technical field of particle counters, and particularly discloses a handheld particle counter which comprises a counter body, a display screen is arranged on the counter body, and a supporting mechanism is arranged at the bottom of the counter body. The supporting mechanism comprises a connecting frame, and the connecting frame is rotationally connected to the counter body through a mounting structure; a clamping piece is arranged between the connecting frame and the counter body, and when the supporting mechanism is in the contraction state, the connecting frame is clamped to the counter body through the clamping piece. When the detection is completed and the numerical value on the display screen of the counter body needs to be recorded, the connecting frame is unfolded from the counter body, and the bottom of the connecting frame is in contact with a table top or other parts, so that the whole counter equipment is triangular, the supporting operation of the counter body can be realized, and the working efficiency is improved. Therefore, a user can conveniently and clearly observe the content on the display screen, the operation is simple and convenient, and the working requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of particle counters, in particular to a handheld particle counter. Background Art

[0002] A dust particle counter is an instrument used to measure the number and particle size distribution of dust particles per unit volume in a clean environment. It can be widely used in authoritative institutions such as provincial and municipal drug testing institutes, blood centers, epidemic prevention stations, disease control centers, quality supervision institutes, the electronics industry, pharmaceutical workshops, semiconductors, optical or precision machining, plastics, paint spraying, hospitals, environmental protection, testing institutes and other production enterprises and scientific research departments. The particle counter has developed from the microscope and has gone through the process of microscope, sedimentation tube, sedimentation instrument, centrifugal sedimentation instrument, particle counter, laser air particle counter, PCS nano laser air particle counter. Among them, the laser air particle counter has become the mainstream product in many industries due to its advantages such as fast test speed, wide dynamic distribution, and no human influence.

[0003] There are various types of handheld particle counters in the prior art, such as the Chinese patent with application number 202020944352.3, authorization announcement number CN212410397U, and name "A Handheld Dust Particle Counter". The above patent discloses a handheld dust particle counter, which relates to the technical field of dust particle counters. It includes a main body, a detection part located at the top of the main body, and a display screen and a button embedded in the outer wall of the main body. The main body is connected to an outer shell, and an interlayer is provided between the outer shell and the main body; a plurality of shock-absorbing parts are evenly arranged in the interlayer; the shock-absorbing part includes a sliding rod, a sleeve rod and a spring, the sliding rod is sleeved with the sleeve rod, and the spring is located inside the sleeve rod and its two ends are respectively connected to the inner wall of the sleeve rod and the bottom end of the sliding rod.

[0004] The handheld dust particle counter described in the aforementioned patent is prone to falling during measurement, resulting in the instrument failing to measure or causing large errors in the measured data. Prior art technologies, such as the aforementioned patent, facilitate the operator's observation of the numerical value displayed on the particle counter. As is well known, prior art dust particle counters are typically placed on a workbench after use. However, handheld dust particle counters cannot stand upright, with the screen facing upwards. If the operator is seated recording the value, they cannot visually see the value on the screen and can only stand up to observe the value on the screen, which is a certain drawback. Utility Model Content

[0005] The purpose of the present invention is to provide a handheld particle counter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a handheld particle counter, comprising a counter body, a display screen being provided on the counter body, and a support mechanism being provided at the bottom of the counter body; the support mechanism comprising a connecting frame, which is rotatably connected to the counter body via a mounting structure; a clip is provided between the connecting frame and the counter body, and when the support mechanism is in a retracted state, the connecting frame is clipped onto the counter body via the clip.

[0007] Furthermore, the mounting structure includes a mounting portion fixedly connected to the connecting frame, and the mounting portion is rotationally connected to the counter body via a damping shaft.

[0008] Furthermore, the clamping member includes a protrusion fixedly connected to the connecting frame, and a clamping slot is provided on the bottom of the counter body, wherein the protrusion is clamped and matched with the clamping slot.

[0009] Furthermore, the protrusion is made of elastic material, and the protrusion is interference fit with the slot.

[0010] Furthermore, a fastener is provided at one end of the connecting frame away from the mounting portion to improve the stability of the supporting mechanism when it is mounted on the counter body.

[0011] Furthermore, the fastener includes a clamping piece fixedly connected to both sides of the connecting frame, and the clamping piece is provided with multiple groups of anti-slip stripes to increase the friction between the clamping piece and the counter body.

[0012] Furthermore, the clamping piece is made of elastic material.

[0013] Furthermore, a driving groove is provided on the side wall of the connecting frame, and the connecting frame is driven to rotate with the damping shaft as the center through the driving groove.

[0014] Furthermore, a contact surface is provided on the bottom of the connecting frame to improve the stability of the supporting mechanism during support.

[0015] Furthermore, a handle is fixedly connected to the counter body.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the handheld particle counter, through the coordination between the counter body, the support mechanism, the connecting frame, the clips, etc., during use, when the detection is completed and the value on the display screen of the counter body needs to be recorded, the connecting frame is unfolded from the counter body, and the bottom of the connecting frame contacts the desktop or other components, so that the entire counter device is triangular, thereby enabling the counter body to be supported, so that the user can clearly observe the content on the display screen, the operation is simple and convenient, and meets work needs. At the same time, the provision of the clips can improve the stability of the connecting frame when it is installed at the bottom of the counter body, avoid the connecting frame being unfolded when not in use, and achieve better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall closed state structure provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the overall expanded state structure provided by an embodiment of the utility model;

[0020] Figure 3 A schematic structural diagram of the overall unfolded state from another perspective provided by an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the support structure provided by an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the counter body provided in an embodiment of the present utility model.

[0023] Explanation of the accompanying symbols: 1. Counter body; 2. Display screen; 3. Handle; 4. Connecting frame; 5. Mounting part; 6. Damping shaft; 7. Protrusion; 8. Slot; 9. Contact surface; 10. Clamping piece. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The utility model provides a technical solution: a handheld particle counter, including a counter body 1, a display screen 2 is provided on the counter body 1, and a supporting mechanism is provided at the bottom of the counter body 1; the supporting mechanism includes a connecting frame 4, and the connecting frame 4 is rotatably connected to the counter body 1 through a mounting structure; a clip is provided between the connecting frame 4 and the counter body 1, and when the supporting mechanism is in a retracted state, the connecting frame 4 is clipped onto the counter body 1 through the clip.

[0026] Specifically, the handheld particle counter includes a counter body 1. More specifically, the counter body 1 is a prior art, and its structure and working principle are not described in detail here. A display screen 2 is provided on the counter body 1, which is convenient for users to observe the contents on the counter display screen 2. The operation is simple and convenient, and the use effect is better. A supporting mechanism is provided at the bottom of the body. Specifically, when the test result is displayed on the display screen 2 and the operator needs to observe the display screen 2 and make a record, the counter body 1 is supported by the supporting mechanism at this moment, so that the user can clearly observe the contents on the display screen 2 and meet the work needs. The supporting mechanism includes a connecting frame 4, which is rotatably connected to the counter body 1 through an installation structure, so that the state of the connecting frame 4 can be easily adjusted. A snap-fitting piece is provided between the connecting frame 4 and the counter body 1. When the supporting mechanism is in a retracted state, the connecting frame 4 is snap-fitted to the counter body 1 through the snap-fitting piece, so as to avoid the connecting frame 4 being in an unfolded state when not in use, and the use effect is better. Therefore, during use, when the detection is completed and the value on the display screen 2 of the counter body 1 needs to be recorded, the connecting frame 4 is unfolded from the counter body 1, and the bottom of the connecting frame 4 contacts the desktop or other components, so that the entire counter device is triangular, thereby being able to support the counter body 1, so that the user can clearly observe the content on the display screen 2, and the operation is simple and convenient, meeting the work needs. At the same time, the provision of a clamping piece can improve the stability of the connecting frame 4 when it is installed at the bottom of the counter body 1, and prevent the connecting frame 4 from being unfolded when not in use, thereby improving the use effect.

[0027] In the embodiment provided by the present invention, the mounting structure includes a mounting portion 5 fixedly connected to the connecting frame 4, and the mounting portion 5 is rotatably connected to the counter body 1 via a damping shaft 6. Therefore, during use, the connecting frame 4 can stop at any position on the side wall of the counter body 1 to meet working needs.

[0028] In the embodiment provided by the present invention, the clamping part includes a protrusion 7 fixedly connected to the connecting frame 4, and a clamping slot 8 is opened on the bottom of the counter body 1, wherein the protrusion 7 and the clamping slot 8 are clamped together to improve the stability of the connecting frame 4 and the counter body 1 during installation.

[0029] In the embodiment provided by the present invention, the protrusion 7 is made of elastic material, and the protrusion 7 and the slot 8 have an interference fit, which increases the friction between the protrusion 7 and the slot 8 to meet working requirements.

[0030] In the embodiment provided by the present invention, a fastener is provided at one end of the connecting frame 4 away from the mounting portion 5 to improve the stability of the supporting mechanism when it is mounted on the counter body 1 .

[0031] In the embodiment provided by the present invention, the fastener includes a clamping piece 10 fixedly connected to both sides of the connecting frame 4. The clamping piece 10 is provided with multiple groups of anti-slip stripes to increase the friction between the clamping piece 10 and the counter body 1.

[0032] In the embodiment provided by the present invention, the clamping piece 10 is made of elastic material.

[0033] In the embodiment provided by the present invention, a driving groove is opened on the side wall of the connecting frame 4, and the connecting frame 4 is driven to rotate with the damping shaft 6 as the center through the driving groove, which facilitates the driving of the connecting frame 4 to rotate.

[0034] In the embodiment provided by the present invention, a contact surface 9 is provided on the bottom of the connecting frame 4 to improve the stability of the supporting mechanism during support.

[0035] In the embodiment provided by the present invention, a handle 3 is fixedly connected to the counter body 1 to facilitate the use of the counter body 1.

[0036] It should be noted that the electrical equipment involved in this application can be powered by batteries or external power supply.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A handheld particle counter, comprising a counter body (1), a display screen (2) being provided on the counter body (1), and characterized in that: A supporting mechanism is provided at the bottom of the counter body (1); The supporting mechanism comprises a connecting frame (4), and the connecting frame (4) is rotatably connected to the counter body (1) via a mounting structure; A clamping piece is provided between the connecting frame (4) and the counter body (1); when the supporting mechanism is in a retracted state, the connecting frame (4) is clamped onto the counter body (1) via the clamping piece.

2. A handheld particle counter according to claim 1, characterized in that: The mounting structure comprises a mounting portion (5) fixedly connected to a connecting frame (4); the mounting portion (5) is rotatably connected to the counter body (1) via a damping shaft (6).

3. The handheld particle counter according to claim 1, characterized in that: The clamping member comprises a protrusion (7) fixedly connected to the connecting frame (4), and a clamping slot (8) is provided on the bottom of the counter body (1), wherein the protrusion (7) is clamped and matched with the clamping slot (8).

4. A handheld particle counter according to claim 3, characterized in that: The protrusion (7) is made of elastic material, and the protrusion (7) and the slot (8) are interference fit.

5. The handheld particle counter according to claim 2, characterized in that: A fastener is provided at one end of the connecting frame (4) away from the mounting portion (5) to improve the stability of the supporting mechanism when it is mounted on the counter body (1).

6. The handheld particle counter according to claim 5, characterized in that: The fastener comprises a clamping piece (10) fixedly connected to both sides of the connecting frame (4), and the clamping piece (10) is provided with multiple groups of anti-slip stripes to increase the friction between the clamping piece (10) and the counter body (1).

7. The handheld particle counter according to claim 6, characterized in that: The clamping piece (10) is made of elastic material.

8. The handheld particle counter according to claim 2, characterized in that: A driving groove is provided on the side wall of the connecting frame (4), and the connecting frame (4) is driven by the driving groove to rotate with the damping shaft (6) as the center of the circle.

9. The handheld particle counter according to claim 8, characterized in that: A contact surface (9) is provided on the bottom of the connecting frame (4) to improve the stability of the supporting mechanism during support.

10. The handheld particle counter according to claim 1, characterized in that: A handle (3) is fixedly connected to the counter body (1).

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