Rubber head wiping rod assembly for cleaning chemical test bottle

Abstract

The utility model relates to the technical field of chemical experiments, and discloses a rubber head wiping rod assembly for cleaning a chemical test bottle. Through cooperation of the glass rod, the rubber sleeve, the expansion top and other components, an operator can achieve arching and resetting of the spring plate only by pressing the glass rod in the using process. After the glass rod is pressed again after cleaning is completed, the spring plate and other components can be reset, and the rubber leather sheath retracts from the unfolded state to the relaxed state; and the overall diameter of the bottom of the equipment is reduced without influencing the taking-out operation from the narrow opening of the container. And on the other hand, the rubber sheath is arranged to sleeve the outer sides of the expansion top and the glass rod, so that the expansion top and the glass rod can be prevented from being scratched and damaged after being in contact with the container.

Description

Technical Field

[0001] The present application relates to the technical field of chemical experiments, and in particular to a rubber-tipped wiper assembly for cleaning chemical test bottles. Background Art

[0002] During chemical experiments, various reaction vessels need to be wiped and cleaned. For example, the parameters in the "Chemical Analysis Methods for Cement" GB / T 176-2017, such as the silica-ammonium chloride gravimetric method and the determination of potassium oxide and sodium oxide-flame photometry, require the use of a rubber-tipped wiper to wipe platinum dishes.

[0003] In the prior art, there is no professional scrubbing device for cleaning. Usually, a glass rod or a rubber cover is used to scrub the top of the glass rod. The above-mentioned method of directly scrubbing with a glass rod is very likely to cause scratches to precious utensils. Although the method of scrubbing with a rubber cover after covering the glass rod can effectively avoid scratches to precious utensils, some utensils have small mouths and large bellies, which means that the thickness of the rubber cover covered on the glass rod cannot be too thick, otherwise it will not be able to extend into the glassware. As a result, the glass rod is restricted by the mouth of the vessel when wiping with the rubber cover, and the rotation angle of the glass rod is limited. When the belly of the vessel is too expanded, it cannot scrub the inner wall of the vessel. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides a rubber-tipped wiper assembly for cleaning chemical test bottles, which can effectively scrub vessels with small mouths and large bellies without being affected by the narrow mouths of the vessels, and can avoid scratching damage to valuable vessels during the scrubbing process.

[0005] According to one aspect of an embodiment of the present application, a rubber-tipped wiper assembly for cleaning chemical test bottles is provided. The rubber-headed wiper assembly for cleaning chemical test bottles includes a glass rod, a rubber sheath and an expansion head. One end of the glass rod is detachably connected to the expansion head, and the rubber sheath is sleeved on the expansion head and the outer side of the glass rod. The expansion head includes a limit box, a movable block is slidably provided in the limit box, the top of the movable block is connected to the inner top wall of the limit box through a plurality of elastic members, the bottom end of the movable block is fixedly connected to a sliding reset component, the other end of the sliding reset component passes through the outer side of the limit box and is connected to the head, the bottom of one side of the sliding reset component is hinged with a plurality of spring plates, the other end of the spring plate is hinged to the bottom of the limit box, a heart-shaped groove in the shape of an inverted heart is provided on the movable block, the top convex end of the heart-shaped groove is a first positioning point, and the bottom concave end of the heart-shaped groove is a second positioning point, a pull rod is hinged at the center of the inner top wall of the limit box, the other end of the pull rod is rotatably connected to a rotating rod, and the other end of the rotating rod extends to the heart-shaped groove.

[0006] In some embodiments, the sliding reset component includes a support sleeve with a hollow interior, the top of the support sleeve is fixedly connected to the bottom end of the moving block, and the bottom of the support sleeve is raised to form the head.

[0007] In some embodiments, the sliding reset component includes a plurality of rigid rods, the top ends of the plurality of rigid rods are arranged in sequence with the central axis of the moving block as the axis, and the top head includes a base with a raised bottom, and the base is provided with a plurality of connection holes for connecting the rigid rods.

[0008] In some embodiments, there are four rigid rods, and each of the four rigid rods is hinged with a spring plate.

[0009] In some embodiments, a vertically arranged receiving groove is provided on the outer side wall of the rigid rod, and the spring plate is hinged in the receiving groove.

[0010] In some embodiments, a rubber sleeve is connected to the top of the expansion plug, and the glass rod is inserted into the rubber sleeve.

[0011] In some embodiments, the top of the rubber holster is open, the bottom of the rubber holster is sealed, and the bottom of the rubber holster expands outward so that the inner diameter of the bottom is larger than the inner diameter of the top.

[0012] The beneficial effects of the present application are as follows: by arranging components such as a glass rod, a rubber sheath, and an expansion head, the present application enables the operator to arch and reset the spring plate simply by pressing the glass rod during use. Furthermore, after the spring plate arches, the rubber sheath can be stretched open, increasing the diameter of the entire bottom of the device, thereby facilitating wiping of the container. After cleaning, pressing the glass rod again resets the spring plate and other components, and the rubber sheath retracts from the expanded state to a relaxed state. The reduction in the overall diameter of the bottom of the device does not affect its removal from the narrow opening of the container. Furthermore, by providing a rubber sheath that is externally coupled to the expansion head and glass rod, the present application can prevent the expansion head and glass rod from scratching and damaging the container upon contact.

[0013] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0015] Figure 1 A schematic diagram of the overall cross-sectional structure of a rubber-tipped wiper assembly for cleaning chemical test bottles provided in an embodiment of the present application;

[0016] Figure 2 A schematic diagram of the cross-sectional structure of the expansion plug provided in an embodiment of the present application in an initial state;

[0017] Figure 3 A schematic diagram of the cross-sectional structure of the expansion plug provided in an embodiment of the present application in a tensioned state;

[0018] Figure 4 A schematic diagram of the local structure of the pull rod provided in an embodiment of the present application;

[0019] Figure 5 A schematic diagram of the partial structure of the sliding return component of the first embodiment provided in the present application;

[0020] Figure 6 This is a schematic diagram of the local structure of the sliding return component in the second embodiment provided in the embodiments of the present application.

[0021] The accompanying drawings in the specific implementation manner are as follows:

[0022] A rubber-tipped wiper assembly 100 for cleaning chemical test bottles includes: a glass rod 110, a rubber sheath 120, an expansion plug 130, a limit box 131, a moving block 132, an elastic member 133, a spring plate 134, a heart-shaped groove 135, a first positioning point 135a, a second positioning point 135b, a pull rod 136, a rotating rod 137, a sliding reset component 140, a supporting sleeve 141, a rigid rod 142, a receiving groove 142a, a plug 150, a base 151, a connecting hole 152, and a rubber sleeve 160. DETAILED DESCRIPTION

[0023] The following will describe in detail the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only used as examples and cannot be used to limit the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned description of the drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0024] Specifically, please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of the overall cross-sectional structure of a rubber-tipped wiper assembly for cleaning chemical test bottles provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the cross-sectional structure of the expansion plug in the initial state provided in the embodiment of the present application. Figure 3 This is a schematic diagram of the cross-sectional structure of the expansion plug provided in an embodiment of the present application in a tensioned state. Figure 4A schematic diagram of the partial structure of the pull rod provided in an embodiment of the present application. A rubber-tipped scrubbing rod assembly 100 for cleaning chemical test bottles includes a glass rod 110, a rubber sheath 120, and an expansion head 130. One end of the glass rod 110 is detachably connected to the expansion head 130. The rubber sheath 120 is sleeved over the expansion head 130 and the outer sides of the glass rod 110. The glass rod 110 is an existing device and can be purchased commercially. The rubber sheath 120 is made of high-temperature resistant rubber. During the scrubbing process, the rubber sheath 120 contacts the inner wall of the chemical container. Since the rubber sheath 120 completely covers the expansion head 130 and the portion of the glass rod 110 that extends into the container, neither the expansion head 130 nor the glass rod 110 comes into direct contact with the chemical container. The expansion plug 130 includes a limit box 131, in which a moving block 132 is slidably provided. The moving block 132 and the inner wall of the limit box 131 can be connected by providing a slide rail and a slideway, thereby enabling the moving block 132 to slide smoothly up and down in the limit box 131. The top of the moving block 132 is connected to the inner top wall of the limit box 131 by a plurality of elastic members 133, and the elastic members 133 can be springs, etc. The bottom end of the moving block 132 is fixedly connected to a sliding reset component 140. The sliding reset component 140 has a nearly cylindrical shape and can be made of stainless steel. The other end of the sliding reset component 140 extends to the outside of the limit box 131 and is connected to a plug 150. The plug 150 is used to lift the rubber holster 120 and squeeze it against the inner bottom wall of the container. The bottom of one side of the sliding reset component 140 is hingedly connected to multiple spring plates 134. The other end of each spring plate 134 is hinged to the bottom of the limit box 131. When the spring plates 134 are squeezed, they arch into an arched shape. The combined arching of the multiple spring plates 134 props up the rubber sheath 120, causing the bottom end of the rubber sheath to bulge outward. The movable block 132 is provided with a heart-shaped groove 135 in the shape of an inverted heart. To facilitate the smooth movement of the rotating rod 137 along the heart-shaped groove 135 and avoid jamming, each corner of the heart-shaped groove 135 is chamfered. The top raised end of the heart-shaped groove 135 serves as the first positioning point 135a. This top raised end of the heart-shaped groove 135 is on the axis of symmetry, ensuring relative stability when the rotating rod 137 slides to this point. The bottom inwardly concave end of the heart-shaped groove 135 serves as the second positioning point 135b. Similarly, when the rotating rod 137 slides to the bottom inwardly concave end of the heart-shaped groove 135, it can also remain relatively stable. A pull rod 136 is hinged at the center of the inner top wall of the limit box 131. The other end of the pull rod 136 is rotatably connected to the rotating rod 137. The other end of the rotating rod 137 extends to the heart-shaped groove 135.

[0025] During the specific working process, the glass rod 110 is connected to the expansion head 130, and the rubber sheath 120 is inserted from the expansion head 130 and stretched to the middle of the glass rod 110. At this time, the operator holds the glass rod 110 and extends the entire device into the reagent bottle until the rubber sheath 120 abuts against the bottom of the reagent bottle, and continues to press the glass rod 110 downward. During the process of the glass rod 110 continuously pushing the limit box 131 downward, the head 150, the sliding reset component 140 and the moving block 132 abut against the bottle. The bottom cannot move (the top head 150, the sliding return component 140 and the moving block 132 can be regarded as a whole at this time). At this time, the limit box 131 and the sliding return component 140 are relatively displaced. The sliding return component 140 will push the moving block 132 to move upward relatively. The rotating rod 137 on the pull rod 136 slides along the heart-shaped groove 135 and moves from the first positioning point 135a to the second positioning point 135b and is positioned. At the same time, the limit box 131 is pressed down, so that the spring plate 134 is compressed and opened and arched, and the rubber leather cover 120 will be stretched (such as Figure 1 ), at this time, due to the bulge and expansion of the rubber cover 120, the bottom diameter of the device will be expanded, and the inner wall of the container can be wiped under the condition that the tilt angle of the glass rod 110 is limited. When the wiping is completed, the glass rod 110 is pressed down again and then released. The rotating rod 137 on the pull rod 136 continues to slide along the heart-shaped groove 135 and moves from the second positioning point 135b to the first positioning point 135a. The elastic member 133 is reset, the sliding reset component 140 is pushed away from the limit box 131, and the spring plate 134 is reset from the tensioned state (such as Figure 2 ), the bottom diameter of the device shrinks and recovers, and it can be easily withdrawn from the narrow mouth of the test container.

[0026] The present invention is simple to operate. By arranging the glass rod 110, the rubber sheath 120, and the expansion head 130, the operator can achieve the arching and resetting of the spring plate 134 by simply pressing the glass rod 110 during use. The arching of the spring plate 134 then expands the rubber sheath 120 and increases the diameter of the bottom of the device, thereby facilitating the wiping of containers. After cleaning, pressing the glass rod 110 again resets the spring plate 134 and other components, and retracts the rubber sheath 120 from the expanded state to the relaxed state. The reduction in the overall diameter of the bottom of the device does not affect the removal operation from the narrow opening of the container. Furthermore, by providing the rubber sheath 120 externally coupled to the expansion head 130 and glass rod 110, the present invention prevents the expansion head 130 and glass rod 110 from scratching and damaging them upon contact with the container.

[0027] Please refer to Figure 5 , Figure 5This is a partial structural diagram of the sliding return assembly according to the first embodiment of the present application. In some embodiments, the sliding return assembly 140 comprises a hollow support sleeve 141. The top of the support sleeve 141 is fixedly connected to the bottom of the movable block 132, and the bottom of the support sleeve 141 is raised to form a head 150. This embodiment of the present application provides a specific configuration for the sliding return assembly, which has a simple structure, enhanced integrity, reduced equipment failure rate during use, and is easy to manufacture.

[0028] Please refer to Figure 6 , Figure 6 This is a partial structural diagram of the sliding reset component according to the second embodiment of the present application. In some embodiments, the sliding reset component 140 includes a plurality of rigid rods 142, the top ends of which are arranged in a sequentially spaced arrangement around the central axis of the movable block 132. The top end 150 includes a base 151 with a raised bottom, and the base 151 is provided with a plurality of connection holes 152 for connecting the rigid rods 142. In the embodiment of the present application, the sliding reset component 140 is composed of a plurality of rigid rods 142, which can be made of stainless steel. Because the plurality of rigid rods 142 pass through the bottom wall of the limit box 131 and are respectively limited, they function as the sliding reset component 140, ensuring sufficient stability during its upward and downward sliding.

[0029] In some embodiments, there are four rigid rods 142, and each of the four rigid rods 142 is hinged with a spring plate 134. In the embodiment of the present application, the arched surface formed by the four spring plates 134 after being stretched is sufficient to support the rubber holster 120 and meet the use requirements.

[0030] In some embodiments, a vertical receiving groove 142a is defined on the outer sidewall of the rigid rod 142, and the spring plate 134 is hingedly connected to the receiving groove 142a. In the embodiment of the present application, by providing the receiving groove 142a, when the spring plate 134 is not extended, a portion of the spring plate 134 will be located in the receiving groove 142a, thereby reducing the distance between the spring plate 134 and the rigid rod 142. Furthermore, the diameter of the bottom of the device will be further reduced (because the rubber holster 120 is elastic and does not affect the operation of entering and exiting the bottle, the diameter mentioned here does not include the rubber holster 120).

[0031] In some embodiments, a rubber sleeve 160 is connected to the top of the expansion plug 130, and the glass rod 110 is inserted into the rubber sleeve 160. The inner diameter of the rubber sleeve 160 is slightly smaller than the diameter of the glass rod 110, and the glass rod 110 and the expansion plug 130 can be quickly assembled using an interference fit.

[0032] In some embodiments, the top of the rubber holster 120 is open, the bottom is sealed, and the bottom of the rubber holster 120 expands outward so that its inner diameter is larger than its inner diameter at the top. Since the spring plate 134 directly stretches the rubber holster 120, the rubber holster 120 will be tightened, generating stress on its surface, which can easily tear the rubber holster 120. However, the present invention appropriately expands the space inside the rubber holster 120 to reserve space for the spring plate 134 after it is opened, thereby eliminating or reducing the stress on the surface of the rubber holster 120 when it is tightened.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A rubber-tipped wiper assembly for cleaning chemical test bottles, characterized in that: It includes a glass rod, a rubber sheath and an expansion head, wherein one end of the glass rod is detachably connected to the expansion head, and the rubber sheath is sleeved on the expansion head and the outer side of the glass rod; The expansion head includes a limit box, a moving block slidably provided in the limit box, the top of the moving block is connected to the inner top wall of the limit box by a plurality of elastic members, the bottom end of the moving block is fixedly connected to a sliding reset component, the other end of the sliding reset component passes through the outside of the limit box and is connected to the head, the bottom of one side of the sliding reset component is hinged with a plurality of spring plates, the other end of the spring plate is hinged to the bottom of the limit box, a heart-shaped groove in the shape of an inverted heart is provided on the moving block, the top convex end of the heart-shaped groove is a first positioning point, and the bottom concave end of the heart-shaped groove is a second positioning point, a pull rod is hinged at the center of the inner top wall of the limit box, and the other end of the pull rod is rotatably connected to a rotating rod, and the other end of the rotating rod extends to the heart-shaped groove.

2. The rubber-tipped wiper assembly for cleaning chemical test bottles according to claim 1, characterized in that: The sliding reset component includes a support sleeve with a hollow interior. The top of the support sleeve is fixedly connected to the bottom end of the moving block. The bottom of the support sleeve is raised to form the top head.

3. The rubber-tipped wiper assembly for cleaning chemical test bottles according to claim 1, characterized in that: The sliding reset component includes a plurality of rigid rods, the top ends of which are arranged in sequence with the central axis of the moving block as the axis. The top head includes a base with a raised bottom, and the base is provided with a plurality of connection holes for connecting the rigid rods.

4. The rubber-tipped wiper assembly for cleaning chemical test bottles according to claim 3, characterized in that: There are four rigid rods, and each of the four rigid rods is hinged with a spring plate.

5. The rubber-tipped wiper assembly for cleaning chemical test bottles according to claim 4, characterized in that: A vertically arranged accommodating groove is provided on the outer side wall of the rigid rod, and the spring plate is hinged in the accommodating groove.

6. The rubber-tipped wiper assembly for cleaning chemical test bottles according to claim 1, characterized in that: The top of the expansion plug is connected with a rubber sleeve, and the glass rod is inserted into the rubber sleeve.

7. The rubber-tipped wiper assembly for cleaning chemical test bottles according to claim 1, characterized in that: The top of the rubber holster is open, the bottom of the rubber holster is sealed, and the bottom of the rubber holster expands outward so that the inner diameter of the bottom is larger than the inner diameter of the top.

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