CN210696490U - Hand-pressing type test tube brush - Google Patents

Abstract

The utility model discloses a hand-press type test-tube brush, which comprises an upper shell, a lower shell, a pressing piece, a return spring, a gear set, a rotating shaft and a brush head, wherein the upper shell and the lower shell are mutually installed to form a containing space, an operation opening communicated with the containing space and a rotating shaft channel communicated with the containing space, a driving end of the pressing piece is pivotally installed on the lower shell, a pressing end of the pressing piece extends to the outside from the containing space through the operation opening, one end part of the return spring is installed on the driving end of the pressing piece, the other end part is installed on the lower shell, the gear set is arranged on the lower shell, the gear set is drivably connected with the driving end of the pressing piece, the rotating shaft is provided with a connecting end and a free end corresponding to the connecting end, the connecting end of the rotating shaft is drivably connected with the gear set, the free end of the rotating shaft extends to the outside from the containing space through the rotating shaft channel, the brush head is mounted at the free end of the rotating shaft.

Description

Hand-pressing type test tube brush

Technical Field

The utility model relates to a test-tube brush field further especially relates to a hand test-tube brush.

Background

Test tubes are often used in laboratories (e.g. for chemical or physical experiments), and are usually in the form of an elongated tube with an opening at one end, and after the test tube is used, the test tube needs to be cleaned to avoid cross contamination during the experiment and to avoid affecting the accuracy of the experimental results. Because the test tube is long and thin tubulose to because there may be some harmful substance, corrosive substance etc. when carrying out the experiment, the experimenter can't wash the test tube by bare-handed, consequently, often can use the test tube brush when wasing the test tube. Common test-tube brush includes a brush-holder stud and sets up in the brush head of a tip of this brush-holder stud, and when using, an operating personnel holds a tip of this brush-holder stud, and the one end that is provided with this brush head through this brush-holder stud extends to the inside of this test tube from the opening of this test tube to wash the inner wall of this test tube by this brush head through the mode of rocking this brush-holder stud. The inner wall of this test tube can't be washd effectively to this kind of washing mode that this test tube brush provided now to the inner wall that leads to the test tube can wash unclean and influence the accuracy of experimental structure next time. In addition, the content of the experiment performed by using the test tube may be different every time, and if the same test tube brush is used to clean the inner wall of the test tube, there is still a large possibility of causing cross interference.

In practice-course-more medical professional schools, laboratory managers usually wash wide-mouth glass instruments such as test tubes, beakers, reagent bottles, erlenmeyer flasks and measuring cylinders, and usually adopt common brushes to manually scrub, and some stubborn stains such as coloring agents need to be manually forced to press the brush handle, so that the working strength is very high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand test-tube brush, it provides a new washing mode and washs the inner wall of test tube.

In order to realize the purpose, the utility model provides a technical scheme is: a hand-press type test tube brush comprises an upper shell, a lower shell, a pressing piece, a return spring, a gear set, a rotating shaft and a brush head, wherein the upper shell and the lower shell are mutually installed to form a containing space between the upper shell and the lower shell, an operation opening communicated with the containing space is formed in the side parts of the upper shell and the lower shell, a rotating shaft channel communicated with the containing space is formed in the end parts of the upper shell and the lower shell, the pressing piece is provided with a driving end and a pressing end corresponding to the driving end, the driving end of the pressing piece is pivotally installed on the lower shell, the pressing end of the pressing piece extends to the outside from the containing space through the operation opening, one end part of the return spring is installed at the driving end of the pressing piece, and the other end part of the return spring is installed at the lower shell, the gear set is arranged on the lower shell, the gear set is connected to the driving end of the pressing piece in a driving mode, the rotating shaft is provided with a connecting end and a free end corresponding to the connecting end, the connecting end of the rotating shaft is connected to the gear set in a driving mode, the free end of the rotating shaft extends to the outside from the accommodating space through the rotating shaft channel, and the brush head is arranged at the free end of the rotating shaft.

As a further preferred example to the utility model discloses a this hand test-tube brush, this gear train includes a first gear, a second gear, a third gear and a steering gear, this first gear, this second gear, this third gear and this steering gear rotationally set up respectively in this casing down, this drive end of this pressing piece is equipped with the driving tooth, the teeth of a cogwheel of this first gear and this driving tooth meshing of this pressing piece are so that this first gear drivably connects in this drive end of this pressing piece, this second gear meshing is in this first gear, this third gear meshing is in this second gear, this steering gear meshing is in this third gear, this pivot sets up in this steering gear.

As a further preferable example of the hand-press type test tube brush of the present invention, the hand-press type test tube brush includes a support bearing disposed at the lower housing, and the rotation shaft is rotatably disposed at the support bearing.

As a further preferable example of the hand-press type test tube brush of the present invention, the brush head is detachably mounted to the rotating shaft.

As a further preferable example of the hand-press type test tube brush of the present invention, the driving end of the pressing member is provided with a hook, and the return spring is mounted to the hook of the pressing member.

Compared with the prior art, the utility model discloses a beneficial effect of this hand test-tube brush lies in:

(1) operating personnel can drive this pivot and drive this brush head rotation through the mode of pressing the end of pressing the pressing piece discontinuously to for the test-tube brush of current hand-held type, the utility model discloses a this brush head of this hand test-tube brush can wash the inner wall of this test tube through rotatory mode to provide the cleaning performance.

(2) This brush head detachably installs in this pivot to operating personnel can change this brush head as required, for example, when this brush head can't be continued to be used, operating personnel can conveniently change this brush head so that allow this hand test-tube brush can be continued to be used, for example again, when wasing this test tube of different grade type, operating personnel can conveniently change this brush head and avoid appearing the condition of cross interference, thereby guarantee the accuracy of experimental result.

Drawings

To achieve the above and other advantages and features of the present invention, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope, for the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings. In the drawings:

fig. 1 is a perspective view of the hand-press type test tube brush of the present invention, wherein the brush head is not mounted on the rotating shaft.

Fig. 2 is a schematic view of the internal structure of the hand-press type test tube brush of the present invention.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Fig. 4 is a schematic view of the usage state of the hand-press type test tube brush of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

Fig. 1 to 4 show a hand-press type test tube brush according to the spirit of the present invention, which is cleaned by cleaning the inner wall of a test tube 1. The hand-press type test tube brush comprises an upper shell 2, a lower shell 3, a pressing piece 4, a return spring 5, a gear set 6, a rotary head 7 and a brush head 8.

The upper case 2 and the lower case 3 are mounted to each other to form a receiving space 21 between the upper case 2 and the lower case 3, an operation opening 22 communicating with the receiving space 21 is formed at the side portions of the upper case 2 and the lower case 3, and a rotation shaft passage 23 communicating with the receiving space 21 is formed at the end portions of the upper case 2 and the lower case 3. For example, in one embodiment, the side and end portions of the lower housing 3 have a notch, respectively, such that after the upper housing 2 and the lower housing 3 are mounted to each other, the notch of the side portion of the lower housing 3 forms the operation opening 22 between the upper housing 2 and the lower housing 3, and the opening of the end portion of the lower housing 3 forms the rotation shaft passage 24 between the upper housing 2 and the lower housing 3.

Preferably, the upper housing 2 and the lower housing 3 are injection-molded parts, respectively, for example, a plastic material may be injection-molded to form the upper housing 2 and the lower housing 3, and the upper housing 2 and the lower housing 3 may be mounted by screws. Alternatively, the upper case 2 and the lower case 3 may be fastened to each other, or the upper case 2 and the lower case 3 may be glued to each other. Although screws for mounting the upper and lower cases 2 and 3 are shown in fig. 1, it should be understood by those skilled in the art that the specific contents described in fig. 1 to 4 are only examples of the hand-pressed test tube brush for explaining the contents of the hand-pressed test tube brush of the present invention, which should not be construed as limiting the hand-pressed test tube brush.

As shown in fig. 2, the pressing piece 4 has a driving end 41 and a pressing end 42 corresponding to the driving end 41. The driving end 41 of the pressing member 4 is pivotally mounted on the lower housing 3, and the pressing end 42 of the pressing member 4 extends from the accommodating space 21 to the outside through the operation opening 22 for being pressed by an operator. For example, the driving end 41 of the pressing member 4 may be provided with a mounting hole (either a mounting through hole or a mounting blind hole), the lower housing 3 has a mounting post extending to the accommodating space 21, and the mounting post of the lower housing 3 is mounted to the mounting hole of the pressing member 4, so that the driving end 41 of the pressing member 4 is pivotally mounted to the lower housing 3. Alternatively, the driving end 41 of the pressing piece 4 may be provided with the mounting post, the lower housing 3 has a mounting hole communicating with the accommodating space 21, and the mounting post of the pressing piece 4 is mounted to the mounting hole of the lower housing 3, so that the driving end 41 of the pressing piece 4 is pivotally mounted to the lower housing 3.

One end of the return spring 5 is mounted to the driving end 41 of the pressing piece 4, and the other end is mounted to the lower housing 3. Preferably, the driving end 41 of the pressing member 4 is provided with a hook 43, and the return spring 5 is mounted to the hook 43 of the pressing member 4. The lower housing 3 may be provided with a protrusion or a hook, and one end of the return spring 5 is mounted to the protrusion or the hook of the lower housing 3.

The gear set 6 is disposed on the lower housing 3, the gear set 6 is rotatably mounted on the lower housing 3, and the gear set 6 is drivingly connected to the driving end 41 of the pressing member 4. The shaft 7 has a connecting end 71 and a free end 72 corresponding to the connecting end 71, the connecting end 71 of the shaft 7 is drivingly connected to the gear set 6, and the free end 72 of the shaft 7 extends from the accommodating space 21 to the outside through the shaft passage 23. The brush head 8 is mounted to the free end 72 of the shaft 7. When the operator presses the pressing end 42 of the pressing member 4, the pressing member 4 can drive the gear set 6 to drive the rotating shaft 7 to rotate, and the rotating shaft 7 further drives the brush head 8 to rotate so as to brush the inner wall of the test tube 1 by the brush head 8. In this process, after a portion of the pressing end 42 of the pressing member 4 is pressed into the accommodating space 21, the restoring spring 5 can restore the pressing end 42 of the pressing member 4 from the inside of the accommodating space 21 to an initial position.

Preferably, the brush head 8 is removably mounted to the free end 72 of the shaft 7 so that the brush head 8 can be easily replaced by an operator as needed to reduce the cost of using the hand-pressed test tube brush.

As shown in fig. 2, the gear set 6 includes a first gear 61, a second gear 62, a third gear 63 and a steering gear 64, the first gear 61, the second gear 62, the third gear 63 and the steering gear 64 are respectively rotatably disposed on the lower housing 3, the driving end 41 of the pressing member 4 is provided with driving teeth 411, the teeth of the first gear 61 and the driving teeth 411 of the pressing member 4 are engaged to make the first gear 61 driveably connected to the driving end 41 of the pressing member 4, the second gear 62 is engaged with the first gear 61, the third gear 63 is engaged with the second gear 62, the steering gear 64 is engaged with the third gear 63, the rotating shaft 7 is disposed on the steering gear 64, in such a way that the extending direction of the rotating shaft 7 is consistent with the overall length direction of the hand press, thereby the structure of the hand-press type test tube brush is small and convenient to use.

It should be noted that the first gear 61, the second gear 62, the third gear 64 and the steering gear 64 of the gear set 6 are mounted on the lower housing 3 in the same manner as the pressing piece 4 is mounted on the lower housing 3.

As further shown in fig. 2, the hand-press type test tube brush includes a supporting bearing 9, the supporting bearing 9 is disposed on the lower housing 3, and the rotating shaft 7 is rotatably disposed on the supporting bearing 9, so as to ensure the stability of the rotating shaft 7 during rotation.

As shown in fig. 4, when an operator presses the pressing end 42 of the pressing member 4 to make a portion of the pressing end 42 enter the accommodating space 21 through the operation opening 22, the return spring 5 is deformed, at this time, the driving end 41 of the pressing member 4 can sequentially drive the first gear 61, the second gear 62, the third gear 63 and the steering gear 64 to rotate, the steering gear 64 realizes the rotation of the driving force to drive the rotating shaft 7 to rotate, and the rotating movement of the rotating shaft 7 drives the brush head 8 to synchronously rotate. After the external force applied to the pressing end 42 of the pressing member 4 is removed, under the action of the return spring 5, the portion of the pressing end 42 of the pressing member 4 entering the accommodating space 21 is further returned to the initial position through the operation opening 22, in the process, the driving end 41 of the pressing member 4 can further drive the first gear 61, the second gear 62, the third gear 63 and the steering gear 64 to rotate in sequence, and the steering gear 64 realizes the rotation of the driving force to drive the rotating shaft 7 to rotate, and the rotating motion of the rotating shaft 7 drives the brush head 8 to rotate synchronously, which makes the cleaning of the inner wall of the test tube 1 more efficient.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (6)

1. A hand-press type test tube brush is characterized by comprising an upper shell, a lower shell, a pressing part, a return spring, a gear set, a rotating shaft and a brush head, wherein the upper shell and the lower shell are mutually installed to form a containing space between the upper shell and the lower shell, an operation opening communicated with the containing space is formed in the side parts of the upper shell and the lower shell, a rotating shaft channel communicated with the containing space is formed in the end parts of the upper shell and the lower shell, the pressing part is provided with a driving end and a pressing end corresponding to the driving end, the driving end of the pressing part is pivotally installed on the lower shell, the pressing end of the pressing part extends to the outside from the containing space through the operation opening, one end part of the return spring is installed at the driving end of the pressing part, the other end of the rotating shaft is arranged on the lower shell, the gear set is arranged on the lower shell and is connected to the driving end of the pressing piece in a driving mode, the rotating shaft is provided with a connecting end and a free end corresponding to the connecting end, the connecting end of the rotating shaft is connected to the gear set in a driving mode, the free end of the rotating shaft extends to the outside from the accommodating space through the rotating shaft channel, and the brush head is arranged at the free end of the rotating shaft.

2. The hand-press type test tube brush as claimed in claim 1, wherein the gear set comprises a first gear, a second gear, a third gear and a steering gear, the first gear, the second gear, the third gear and the steering gear are rotatably disposed at the lower housing, the driving end of the pressing member is provided with driving teeth, the teeth of the first gear are engaged with the driving teeth of the pressing member to drivingly connect the first gear to the driving end of the pressing member, the second gear is engaged with the first gear, the third gear is engaged with the second gear, the steering gear is engaged with the third gear, and the rotation shaft is disposed at the steering gear.

3. The hand-pressed test tube brush as claimed in claim 2, wherein the hand-pressed test tube brush comprises a support bearing disposed on the lower housing, the shaft being rotatably disposed on the support bearing.

4. A hand-pressed test tube brush as claimed in any one of claims 1 to 3 wherein the brush head is removably mounted to the shaft.

5. A hand-press type test tube brush as claimed in any one of claims 1 to 3, wherein the driving end of the pressing member is provided with a hook, and the return spring is mounted to the hook of the pressing member.

6. A hand-pressed test tube brush as claimed in claim 4, wherein the driving end of the pressing member is provided with a hook, and the return spring is mounted to the hook of the pressing member.

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