A tester with a blow nozzle that is easy to replace

Abstract

The utility model relates to test appearance technical field, concretely relates to a test appearance convenient to replace blow nozzle, including shell, the shell is equipped with the holding cavity, the holding cavity is equipped with sensor, the shell is equipped with air inlet channel, one end of air inlet channel is equipped with air inlet, the shell is equipped with the plug interface at air inlet, the plug interface telescopic activity is equipped with the stripping sleeve, the stripping sleeve is equipped with the outer wall of air inlet and slides, still include blow nozzle, blow nozzle includes plug interface and leans against boss part, the stripping sleeve is equipped with stripping boss part, the inner wall of plug interface and air inlet is detachably connected, stripping boss part is located between leans against boss part and air inlet, the shell is equipped with drive mechanism, the utility model discloses drive stripping sleeve to push out blow nozzle through drive mechanism, need not manual direct contact used blow nozzle, avoid hand to contaminate spittle, saliva and other secretions, prevent the cross infection between user and subsequent operator, also avoid polluting new blow nozzle, improve the use health safety.

Description

Technical Field

[0001] This utility model relates to the field of testing instrument technology, specifically to a testing instrument with an easy-to-replace mouthpiece. Background Technology

[0002] Breathalyzers are widely used in traffic enforcement, pre-employment safety testing in enterprises, and safety management in public places. Their core function is to quickly screen for alcohol by detecting the concentration of alcohol in a user's exhaled breath, providing crucial support for ensuring public and production safety. To avoid cross-infection between different users, existing breathalyzers generally use replaceable nozzles. The standard procedure is as follows: first, insert a new, clean nozzle into the breathalyzer's interface; after the user completes the breathalyzer test, remove the used nozzle from the device for replacement with a new one for the next user.

[0003] Currently, used mouthpieces are all removed manually. The surface of used mouthpieces may contain residual secretions such as exhaled droplets and saliva. If hands are not cleaned promptly after touching the mouthpiece during manual removal, it may cause contamination when a new mouthpiece is picked up. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a testing instrument that facilitates the replacement of the mouthpiece.

[0005] The objective of this utility model is achieved through the following technical solution: a tester that facilitates the replacement of mouthpieces, comprising a housing; a placement cavity is provided inside the housing; and a sensor is provided inside the placement cavity; The outer shell is provided with an air intake channel communicating with the placement cavity; one end of the air intake channel is provided with an air inlet; the outer shell is provided with an insertion interface at the air inlet; the insertion interface is provided with a material release sleeve that can be telescopically attached; the material release sleeve is slidably disposed on the outer wall of the air inlet; The tester with easy-to-replace nozzle also includes an air nozzle; the air nozzle includes a plug-in part and abutting protrusion part; the stripper sleeve is provided with a stripping protrusion part; the plug-in part is detachably connected to the inner wall of the air inlet; the stripping protrusion part is located between the abutting protrusion part and the air inlet. The outer casing is equipped with a drive mechanism for driving the movement of the stripper sleeve.

[0006] The present invention is further configured such that the stripping boss is located at one end of the stripping sleeve near the insertion interface; and the outer wall of the air inlet is provided with an outer blocking boss for abutting against the end of the stripping sleeve away from the insertion interface.

[0007] The present invention is further provided that the inner wall of the air inlet is provided with an inner blocking protrusion for abutting against the plug-in portion.

[0008] The present invention is further configured such that the driving mechanism includes a swing rod and a driving pin disposed on the outer wall of the stripping sleeve; the middle part of the swing rod is rotatably disposed inside the outer shell; one end of the swing rod is provided with a strip groove; and the driving pin is movably disposed in the strip groove.

[0009] The present invention is further provided that the other end of the swing rod is provided with a handle.

[0010] The present invention is further configured such that the outer shell is provided with a clearance groove for making way for the handle.

[0011] The present invention is further configured such that a limiting wall is provided inside the outer shell for abutting against one end of the swing rod.

[0012] The present invention is further provided that the air nozzle has a handle.

[0013] The beneficial effects of this utility model are as follows: This utility model uses a drive mechanism to drive the unloading sleeve to push out the air nozzle, eliminating the need for direct manual contact with the used air nozzle and avoiding hand contamination with droplets, saliva, and other secretions. This prevents cross-infection between the user and subsequent operators, avoids contamination of new air nozzles, and improves hygiene and safety during use. Attached Figure Description

[0014] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is a cross-sectional view of the present invention from another perspective; Figure 5 yes Figure 4 A magnified view of part B in the middle; Figure 6 This is a schematic diagram of the structure of this utility model after the outer shell is hidden; The components are as follows: 1. Outer shell; 11. Placement cavity; 12. Insertion interface; 2. Air inlet channel; 3. Air inlet; 31. Outer blocking boss; 32. Inner blocking boss; 4. Stripping sleeve; 41. Stripping boss; 42. Drive pin; 5. Air nozzle; 51. Insertion part; 52. Abutting boss part; 53. Handle part; 6. Swing rod; 61. Strip groove; 62. Handle; 7. Relief groove; 8. Limiting wall. Detailed Implementation

[0016] The present invention will be further described in conjunction with the following embodiments.

[0017] Depend on Figures 1 to 6 As can be seen, the tester for easy mouthpiece replacement described in this embodiment includes a housing 1; the housing 1 has a placement cavity 11; the placement cavity 11 has a sensor; the sensor is not shown in the figure. The outer shell 1 is provided with an air intake channel 2 communicating with the placement cavity 11; one end of the air intake channel 2 is provided with an air inlet 3; the outer shell 1 is provided with an insertion interface 12 at the air inlet 3; the insertion interface 12 is provided with a material release sleeve 4 that can be extended and retracted; the material release sleeve 4 is slidably disposed on the outer wall of the air inlet 3; The tester that facilitates nozzle replacement also includes an air nozzle 5; the air nozzle 5 includes a plug part 51 and an abutment part 52; the material release sleeve 4 is provided with a material release protrusion 41; the plug part 51 is detachably connected to the inner wall of the air inlet 3; the material release protrusion 41 is located between the abutment part 52 and the air inlet 3. The outer casing 1 is provided with a drive mechanism for driving the movement of the stripping sleeve 4.

[0018] In this embodiment of the tester that facilitates nozzle replacement, when in use, a clean nozzle 5 is taken out, and the plug part 51 is inserted from the plug interface 12 into the air inlet 3 of the air inlet channel 2. During this process, the abutment part 52 pushes the material removal protrusion 41 to move the material removal sleeve 4 into the outer shell 1 until the plug part 51 is fully inserted into the air inlet 3. At this time, the outer wall of the plug part 51 and the inner wall of the air inlet 3 are fixed by friction, and the material removal protrusion 41 is located between the end of the abutment part 52 and the air inlet 3. After the air blowing is completed, the drive mechanism drives the stripping sleeve 4 to extend outward, thereby pushing the insertion part 51 of the air nozzle 5 out of the air inlet 3 under the action of the stripping boss 41 and the abutting boss 52, so that the air nozzle 5 falls off naturally without the need for manual removal.

[0019] The tester described in this embodiment, which facilitates nozzle replacement, has a material removal boss 41 located at one end of the material removal sleeve 4 near the insertion interface 12. The outer wall of the air inlet 3 has an outer blocking boss 31 for abutting against the end of the material removal sleeve 4 away from the insertion interface 12. The material removal boss 41, located near the insertion interface 12, can directly and precisely align with the abutting boss 52 of the air nozzle 5 during insertion, ensuring the material removal sleeve 4 can be stably pushed during installation. The outer blocking boss 31, located on the outer wall of the air inlet 3, abuts against the outer blocking boss 31 when the material removal sleeve 4 slides into the outer shell 1, forming a mechanical limit and restricting the maximum inward movement of the material removal sleeve 4.

[0020] The tester described in this embodiment, which facilitates nozzle replacement, has an inner blocking protrusion 32 on the inner wall of the air inlet 3 for abutting against the insertion part 51. When the insertion part 51 of the nozzle 5 is inserted into the air inlet 3, the end of the insertion part 51 abuts against the inner blocking protrusion 32 on the inner wall of the air inlet 3. The maximum insertion depth of the insertion part 51 is determined by physical blocking, preventing the insertion part 51 from being inserted too deeply or too shallowly.

[0021] The tester described in this embodiment is easy to replace the nozzle. The driving mechanism includes a swing rod 6 and a driving pin 42 disposed on the outer wall of the stripping sleeve 4. The middle part of the swing rod 6 is rotatably disposed inside the outer shell 1. One end of the swing rod 6 is provided with a strip groove 61. The driving pin 42 is movably disposed in the strip groove 61. Specifically, the drive mechanism adopts the lever principle. The swing rod 6 uses the central rotation point as the fulcrum. When the operator pushes the other end of the swing rod 6, the swing rod 6 rotates around the fulcrum. The strip groove 61 at one end drives the drive pin 42 located on the outer wall of the stripping sleeve 4 to move, thereby driving the stripping sleeve 4 to slide along the outer wall of the air inlet 3, realizing the extension and retraction of the stripping sleeve 4. The lever structure reduces the force required for operation, making it easier for the operator to push the swing rod 6, which is especially suitable for scenarios where the nozzle is changed frequently. The cooperation between the strip groove 61 and the drive pin 42 avoids the problem of jamming during the drive process, ensuring that the extension and retraction of the stripping sleeve 4 is smooth and stable. Compared with directly pushing the stripping sleeve 4, this structure is more convenient to operate and the force is more even, improving the practicality and reliability of the drive mechanism.

[0022] The tester described in this embodiment, which facilitates nozzle replacement, has a handle 62 at the other end of the swing rod 6. This design allows the user to easily drive the swing rod 6 to rotate.

[0023] The tester described in this embodiment, which facilitates nozzle replacement, has a recessed groove 7 in its housing 1 to allow space for the handle 62. The recessed groove 7 is formed on the housing 1, and its shape and size are adapted to the swing trajectory of the handle 62. When the handle 62 rotates with the swing rod 6, the recessed groove 7 provides ample space for the handle 62 to move, preventing collisions or interference between the handle 62 and the housing 1, and ensuring that the handle 62 can complete its rotational stroke.

[0024] The tester described in this embodiment, which facilitates nozzle replacement, has a limiting wall 8 inside the housing 1 for abutting one end of the swing rod 6. The limiting wall 8 is located inside the housing 1. When the swing rod 6 rotates around its central fulcrum, one end of the swing rod 6 gradually approaches the limiting wall 8. When the swing rod 6 rotates to its maximum angle, its end abuts against the limiting wall 8, forming a mechanical limit and restricting further rotation of the swing rod 6.

[0025] The tester described in this embodiment is designed for easy replacement of the mouthpiece. The mouthpiece 5 is provided with a handle 53. The handle 53 serves as the force application part for the operator to pick up and place the mouthpiece 5. When picking up, placing or inserting the mouthpiece 5, the operator can complete the operation by holding the handle 53 without touching the insertion part 51 of the mouthpiece 5.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A testing instrument with an easily replaceable mouthpiece, characterized in that: Includes a housing (1); the housing (1) has a placement cavity (11); the placement cavity (11) has a sensor; The outer shell (1) is provided with an air intake channel (2) communicating with the placement cavity (11); one end of the air intake channel (2) is provided with an air inlet (3); the outer shell (1) is provided with an insertion interface (12) at the air inlet (3); the insertion interface (12) is provided with a material release sleeve (4) that is telescopically movably provided; the material release sleeve (4) is slidably provided on the outer wall of the air inlet (3); The tester with easy-to-replace nozzle also includes an air nozzle (5); the air nozzle (5) includes a plug part (51) and abutment part (52); the stripping sleeve (4) is provided with a stripping protrusion part (41); the plug part (51) is detachably connected to the inner wall of the air inlet (3); the stripping protrusion part (41) is located between the abutment part (52) and the air inlet (3); The outer casing (1) is provided with a drive mechanism for driving the stripper sleeve (4) to move.

2. The testing instrument with an easily replaceable mouthpiece according to claim 1, characterized in that: The stripping boss (41) is located at one end of the stripping sleeve (4) near the insertion interface (12); the outer wall of the air inlet (3) is provided with an outer blocking boss (31) for abutting against the end of the stripping sleeve (4) away from the insertion interface (12).

3. The testing instrument with an easily replaceable mouthpiece according to claim 1, characterized in that: The inner wall of the air inlet (3) is provided with an inner blocking protrusion (32) for abutting against the plug (51).

4. The testing instrument with an easily replaceable mouthpiece according to claim 1, characterized in that: The driving mechanism includes a swing rod (6) and a driving pin (42) disposed on the outer wall of the stripping sleeve (4); the middle part of the swing rod (6) is rotatably disposed inside the outer shell (1); one end of the swing rod (6) is provided with a strip groove (61); the driving pin (42) is movably disposed in the strip groove (61).

5. The testing instrument with an easily replaceable mouthpiece according to claim 4, characterized in that: The other end of the swing rod (6) is provided with a handle (62).

6. The testing instrument with an easily replaceable mouthpiece according to claim 5, characterized in that: The outer casing (1) is provided with a clearance groove (7) for making way for the handle (62).

7. The testing instrument with an easily replaceable mouthpiece according to claim 4, characterized in that: The housing (1) is provided with a limiting wall (8) for abutting against one end of the swing rod (6).

8. The testing instrument with an easily replaceable mouthpiece according to claim 1, characterized in that: The air nozzle (5) is provided with a handle (53).

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