A laboratory fume hood glass door guide rail mechanism and device

Abstract

The present invention discloses a laboratory fume hood glass door guide rail mechanism and device, which includes a guide rail body, a glass guide rail clamp, a glass pressure plate and a counterweight box; wherein the guide rail body is a double-layer structure, two guide strips are arranged parallel and oppositely on the surface of the bottom panel of the bottom layer of the guide rail body along the length direction of the bottom panel, and a guide strip is arranged on the upper side panel of the guide rail body along the length direction of the side panel; two guide wheels are installed at both ends of the counterweight box and are matched to be installed in the guide strip on the bottom panel; a guide wheel is installed at both ends of the glass guide rail clamp and is matched to be installed in the guide strip on the side panel; the glass pressure plate is fixedly installed on the upper surface of the glass guide rail clamp. The mechanism adopts a rolling friction structure design, which effectively reduces the motion friction coefficient of the guide rail, reduces noise, and increases the comfort of the glass door lifting and lowering process.

Description

Technical Field

[0001] The invention relates to laboratory equipment, in particular to a laboratory fume hood glass door guide rail mechanism and device. Background Art

[0002] Existing laboratory fume hood door guide devices mostly use sliding friction guide strips and guide grooves, which have a large movement friction coefficient and are laborious. When the operator uses it with improper force, it may cause the opposing guide rails to be out of sync. The movement noise is loud, and the overall structure is not compact, the volume occupies a large area, and it is inconvenient to install and maintain. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a laboratory fume hood glass door guide rail mechanism and device to reduce the motion friction coefficient of the guide rail and reduce noise.

[0004] To achieve the above object, the technical solution of the present invention is:

[0005] A laboratory fume hood glass door guide rail mechanism comprises a guide rail body, a glass guide rail clamp, a glass pressure plate and a counterweight box; wherein,

[0006] The guide rail body is an integrated double-layer structure, with two guide strips arranged parallel to each other on the surface of the bottom panel of the bottom layer of the guide rail body along the length direction of the bottom panel, and a guide strip arranged on the side panel of the upper layer of the guide rail body along the length direction of the side panel;

[0007] Two guide wheels are installed at both the front and rear ends of the counterweight box and are cooperatively installed in the guide strips on the bottom panel;

[0008] The front and rear ends of the glass rail clamping plate are both equipped with a guide wheel and are cooperatively installed in the guide strip of the side panel;

[0009] The glass pressing plate is fixedly mounted on the upper surface of the glass guide rail clamping plate, and the gap between the lower surface of the glass pressing plate and the upper surface of the glass guide rail clamping plate forms a glass nesting installation position.

[0010] A flat wheel is installed in the side surface of the glass rail clamping plate, and the flat wheel is in contact with the upper bottom panel of the rail body.

[0011] The glass pressing plate is fixed on the upper surface of the glass guide rail clamping plate by screw locking.

[0012] A plurality of bent protrusions are arranged on the glass guide rail clamping plate to resist the component force generated by the glass pressing plate when the screws are tightened.

[0013] The laboratory fume hood glass door guide rail mechanism also includes a guide rail mounting bracket, and the guide rail mounting bracket is installed in one end surface of the guide rail body.

[0014] A bearing seat is installed in the guide rail mounting bracket.

[0015] The guide strip is in a raised arc shape.

[0016] A laboratory fume hood glass door guide rail device comprises the above-mentioned laboratory fume hood glass door guide rail mechanism, a connecting shaft, a synchronous belt and a synchronous wheel. The laboratory fume hood glass door guide rail mechanism is arranged opposite to each other on the left and right, and the two ends of the connecting shaft are respectively installed in the bearing seats of the two laboratory fume hood glass door guide rail mechanisms. The synchronous wheel is installed at the two ends of the connecting shaft and is located in the guide rail mounting fixing frame. The counterweight box is connected to the synchronous wheel through a synchronous belt for transmission.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The glass door guide rail mechanism of this laboratory fume hood adopts a rolling friction structure design, which effectively reduces the motion friction coefficient of the guide rail, reduces noise, and increases the comfort of the glass door lifting process;

[0019] 2. The guide rail body adopts an integrated double-layer structure, which can effectively reduce the process steps during the installation process, save installation time and improve production efficiency.

[0020] 3. The glass door guide rail device of this laboratory fume hood is connected by synchronous wheels and synchronous belts. Under the condition of low friction coefficient, it can effectively avoid the movement jamming caused by the asynchronous opposing guide rails.

[0021] 4. At the same time, for glass doors with automatically adjustable opening, the low friction coefficient guide rail system also plays a good energy-saving role. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of the glass door guide rail mechanism of a laboratory fume hood provided in Example 1 of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the guide rail body;

[0024] Figure 3 It is a structural schematic diagram of the counterweight box;

[0025] Figure 4 It is a structural schematic diagram of a glass guide rail clamp and a glass pressure plate;

[0026] Figure 5 A schematic diagram of the overall structure of a laboratory fume hood glass door guide rail device provided in Example 2 of the present invention;

[0027] In the figure: 1. Guide rail body; 2. Glass guide rail clamp; 3. Glass pressure plate; 4. Counterweight box; 5. Guide wheel; 6. Flat wheel; 7. Guide rail mounting bracket; 8. Bearing seat; 9. Synchronous wheel; 10. Connecting shaft; 11. Guide strip; 21. Protrusion; 100. Laboratory fume hood glass door guide rail mechanism. DETAILED DESCRIPTION

[0028] The content of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Embodiment 1:

[0030] See also Figure 1-4 As shown, the laboratory fume hood glass door guide rail mechanism provided in this embodiment includes a guide rail body 1, a glass guide rail clamping plate 2, a glass pressing plate 3 and a counterweight box 4.

[0031] Among them, Figure 2 As shown, the guide rail body 1 is a double-layer structure, formed by integral die casting, with a compact structure, which can effectively reduce the process steps in the installation process, save installation time, and improve production efficiency; two guide strips 11 are arranged parallel and oppositely on the surface of the bottom panel of the bottom layer of the guide rail body along the length direction of the bottom panel, and a guide strip 11 is arranged on the upper side panel of the guide rail body along the length direction of the side panel. The front and rear ends of the counterweight box 4 are correspondingly installed with two guide wheels 5 and are installed in the guide strip 11 on the bottom panel in a coordinated manner, so that it can move linearly along the two guide strips 11 without side rotation; the front and rear ends of the glass guide rail clamp 2 are also installed with a guide wheel 5 and are installed in the guide strip 11 of the side panel in a coordinated manner, so that the glass guide rail clamp 2 is also rolled and rotated in the guide strip 11 by the guide wheel 5; the glass pressing plate 3 is fixedly installed on the upper surface of the glass guide rail clamp 2, and the gap between the lower surface of the glass pressing plate 3 and the upper surface of the glass guide rail clamp 2 forms a glass nesting installation position.

[0032] It can be seen that the laboratory fume hood glass door guide rail mechanism provided in this embodiment adopts a rolling friction structure design, which effectively reduces the motion friction coefficient of the guide rail, reduces noise, and increases the comfort of the glass door lifting and lowering process; at the same time, the rail body adopts a double-layer integrated structure with a compact structure, which can effectively reduce the process steps in the installation process, save installation time, and improve production efficiency.

[0033] As a preferred embodiment of this embodiment, a flat wheel 6 is installed on the side of the glass rail clamping plate 2, and the flat wheel 6 is in contact with the upper bottom panel of the rail body 1 to effectively prevent the glass rail clamping plate 2 from generating deflection movement when subjected to force.

[0034] As another preferred embodiment of the present invention, specifically, the glass pressing plate 3 is fixed to the upper surface of the glass guide rail clamp 2 by screw locking, and a plurality of bent protrusions 21 are provided on the glass guide rail clamp 2 to resist the component force generated by the glass pressing plate 3 when the screws are locked, thereby reliably clamping the glass door.

[0035] As another preferred embodiment of the present invention, the above-mentioned laboratory fume hood glass door guide rail mechanism also includes a guide rail mounting bracket 7, which is installed in one end surface of the guide rail body 1 by screws to facilitate the installation of the overall guide rail mechanism; a bearing seat 8 is installed in the guide rail mounting bracket 7 to facilitate the installation of the synchronization mechanism and at the same time play a role in strengthening the rigidity of the integrated guide rail body 1.

[0036] Specifically, the guide strip 11 is in a convex arc shape to further reduce friction.

[0037] Embodiment 2:

[0038] See also Figure 5 As shown, the laboratory fume hood glass door guide rail device provided in this embodiment includes the laboratory fume hood glass door guide rail mechanism 100, the connecting shaft 10, the synchronous belt and the synchronous wheel 9 in Example 1. Among them, the laboratory fume hood glass door guide rail mechanism 100 is relatively arranged on the left and right, the glass door is nested and installed in the glass nesting installation position of the two guide rail mechanisms, the two ends of the connecting shaft 10 are respectively installed in the bearing seats 8 of the two laboratory fume hood glass door guide rail mechanisms, the synchronous wheel 9 is installed at both ends of the connecting shaft 10 and is located in the guide rail installation fixing frame 7, and the counterweight box 4 is connected and driven by the synchronous wheel 9 through the synchronous belt. In this way, by adopting the synchronous wheel 9, the connecting shaft 10 and the synchronous belt to synchronize the movement, it is ensured that the mechanism can operate normally without causing movement jamming when it is operated by unbalanced force, and by adjusting the weight of the counterweight iron of the counterweight box 4 to make it consistent with the weight of the glass door guide rail mechanism side, so as to ensure that the glass door is suspended at any position during the opening and closing process, and the operation is labor-saving.

[0039] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. A laboratory fume hood glass door guide rail mechanism, characterized in that: It includes a guide rail body, a glass guide rail clamp, a glass pressure plate and a counterweight box; wherein, The guide rail body is an integrated double-layer structure, with two guide strips arranged parallel to each other on the surface of the bottom panel of the bottom layer of the guide rail body along the length direction of the bottom panel, and a guide strip arranged on the side panel of the upper layer of the guide rail body along the length direction of the side panel; Two guide wheels are installed at both the front and rear ends of the counterweight box and are cooperatively installed in the guide strips on the bottom panel; The front and rear ends of the glass rail clamping plate are both equipped with a guide wheel and are cooperatively installed in the guide strip of the side panel; The glass pressing plate is fixedly mounted on the upper surface of the glass guide rail clamping plate, and the gap between the lower surface of the glass pressing plate and the upper surface of the glass guide rail clamping plate forms a glass nesting installation position; A flat wheel is installed in the side of the glass rail clamping plate, and the flat wheel is in contact with the upper bottom panel of the rail body; The glass pressing plate is fixed on the upper surface of the glass guide rail clamping plate by screw locking; A plurality of bent protrusions are arranged on the glass rail clamping plate to resist the component force generated by the glass pressing plate when the screws are tightened; It also includes a guide rail installation and fixing frame, which is installed in one end surface of the guide rail body.

2. The laboratory fume hood glass door guide rail mechanism according to claim 1, characterized in that: A bearing seat is installed in the guide rail mounting bracket.

3. The laboratory fume hood glass door guide rail mechanism according to claim 1, characterized in that: The guide strip is in a raised arc shape.

4. A laboratory fume hood glass door guide rail device, characterized in that: It includes the laboratory fume hood glass door guide rail mechanism, connecting shaft, synchronous belt and synchronous wheel as described in claim 1, wherein the laboratory fume hood glass door guide rail mechanism is arranged opposite to each other on the left and right, and the two ends of the connecting shaft are respectively installed in the bearing seats of the two laboratory fume hood glass door guide rail mechanisms, the synchronous wheel is installed at the two ends of the connecting shaft and is located in the guide rail mounting bracket, and the counterweight box is connected to the synchronous wheel for transmission through a synchronous belt.

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