Lifting connecting piece, lifting window structure and ventilation cabinet

Abstract

The lifting connecting piece comprises a connecting plate body arranged in a vertical extending mode, the connecting plate body comprises a positioning section located on the lower portion and a connecting section located on the upper portion, the width of the positioning section is larger than that of the connecting section, and an extending section is arranged on the inner side of the connecting section in an extending mode in the horizontal direction. And a mounting buckle position is arranged on the extension section. Through the structural arrangement of the lifting connecting piece, the lifting belt and the side window frame of the lifting window structure are effectively connected simply and effectively, and linkage application of the lifting window structure and the lifting mechanism is achieved. In the fume hood structure applying the window structure, the enclosed side mounting space is arranged, the side mounting space is arranged in the side window frame, the lifting connecting piece and the lifting belt are arranged in the side mounting space, and the window structure arranged in the side mounting space effectively enhances the sealing effect of the fume hood. Airflow in the ventilation cabinet is prevented from flowing out towards the front side from a gap between the cabinet side wall and the side window frame.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting window design, in particular to a lifting connector, a lifting window structure and a fume hood. Background Art

[0002] A variety of window frame structures are used in existing laboratory cabinet applications. For designs with liftable windows, the window frame typically requires a guide structure for the lift drive direction and a lift drive traction structure to allow the window frame to move vertically within the mounting slots on both sides.

[0003] In the prior art, the positional structure coordination between the window frame and the guide structure, lifting structure and installation slot is complicated. The corresponding installation structure may be exposed after installation, which makes the laboratory cabinet product look poor. Alternatively, the hidden structure installation will lead to complex connection of the corresponding assembly structure and high cost.

[0004] In the prior art, the cabinet sidewall and the lifting window structure are arranged side by side in the fume hood, which may cause the airflow generated during the experiment in the fume hood to flow out from the gap between the cabinet sidewall and the lifting window structure.

[0005] How to provide a window structure with a simple assembly structure, a concise visual effect of the matching structure, and a good airtight connection effect is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a lifting connector, a lifting window structure and a fume hood.

[0007] The lifting connecting member includes a connecting plate body extending vertically, the connecting plate body includes a positioning section located at the lower part and a connecting section located at the upper part, the positioning section is wider than the connecting section, an extension section is extended horizontally on the inner side of the connecting section, and an installation buckle is provided on the extension section.

[0008] Furthermore, a plurality of positioning holes are provided in the center of the positioning section along the vertical direction.

[0009] Furthermore, the extension section extends outward from a middle position in the width direction of the positioning section.

[0010] Furthermore, the extending direction of the extending section is perpendicular to the connecting plate body.

[0011] Furthermore, in the connecting plate body, the positioning section is a vertically extending rectangle, the connecting section is a vertically extending rectangle, the extending section is a horizontally extending rectangle, and the mounting buckle is a horizontally extending rectangular hole.

[0012] Furthermore, in the positioning section, the connecting section, the extending section or the installation buckle position, the intersection angles corresponding to their shapes are chamfered.

[0013] The lifting window structure includes a side window frame, the outer side of the side window frame is connected to a lifting belt through the lifting connector described above, and one end of the lifting belt is positioned and connected to the installation buckle.

[0014] Furthermore, a pulley assembly is provided on the outer side of the side window frame.

[0015] A fume hood, which uses the lifting window structure as described above, also includes a cabinet side wall, a side installation space extending vertically inwardly is provided at the front end of the cabinet side wall, a side opening vertically connected inwardly is provided in the side installation space, and the side window frame and the lifting belt are placed in the side installation space.

[0016] The beneficial effects of the present invention are:

[0017] A lifting connector structure effectively connects the lifting belt to the side window frame of the lifting window structure, achieving the linkage between the lifting window structure and the lifting mechanism. In a fume hood structure employing this design, the side mounting space is enclosed, allowing the side window frame to be placed in the side mounting space. The lifting connector and lifting belt are then positioned within the side mounting space. The window structure positioned within the side mounting space effectively enhances the fume hood's sealing effect, preventing airflow from flowing forward through the gap between the side wall and the side window frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the lifting window structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the partial assembly structure of the fume hood of the present invention;

[0020] Figure 3 This is a schematic diagram of the structural arrangement of the lifting connection member of the present invention.

[0021] Description of reference numerals:

[0022] Profile body 1, front transverse section 11, transverse section groove 111, back transverse section 12, connecting vertical section 13, positioning vertical section 14, positioning groove 141, first short vertical section 15, second short vertical section 16, mounting space 17,

[0023] Lifting connector 2, lifting belt 200, mounting buckle 201, connecting plate 21, positioning section 211, positioning hole 2111, connecting section 212, extending section 213,

[0024] Pulley assembly 3, pulley guide end surface 31, positioning plate segment 32, movable arm 33, guide pulley 34,

[0025] Anti-collision block 4,

[0026] Cabinet side wall 5 , side installation space 51 , side opening 52 , window 6 . DETAILED DESCRIPTION

[0027] In order to make the technical solution, purpose and advantages of the present invention more clearly understood, the present invention is further explained below with reference to the accompanying drawings and embodiments.

[0028] As attached Figures 1 to 3 As shown, the fume hood provided by the present invention has a structure including cabinet side walls 5 provided on both sides, and the front ends of the cabinet side walls 5 on both sides are provided with vertically extending side installation spaces 51 facing inward, and the side installation spaces 51 are provided with vertically connected side openings 52 facing inward; the side window frame position of the window structure is connected to the side installation space 51, and the window structure is pulled up and down by a lifting device, that is, the fume hood has a setting application of a lifting window structure.

[0029] Example 1:

[0030] Regarding a specific structural setting method of a lifting window structure, in this embodiment, the lifting window structure is integrated with a lifting connection member 2 and a pulley assembly 3 installed at the side window frame position, and the lifting connection member 2 and the pulley assembly 3 are placed in the side installation space 51.

[0031] Specifically, the side window frame structure of the lifting window structure is applied as a window frame profile connection structure, and the window frame profile connection structure includes a profile body 1 extending in the vertical direction, and the cross-sectional shape of the profile body 1 includes a front cross section 11, a back cross section 12 and a connecting vertical section 13 connecting one end of the back cross section 12 and the middle position of the front cross section 11, and the front cross section 11, the connecting vertical section 13 and the back cross section 12 are connected in a horizontal H shape; a positioning vertical section 14 is extended toward the rear at one end of the front cross section 11, and an installation space 17 for inserting the window 6 is provided between the front cross section 11, the connecting vertical section 13 and the back cross section 12.

[0032] A first short vertical section 15 is extended rearward from the other end of the front transverse section 11, and / or a second short vertical section 16 is extended forward from the other end of the back transverse section 12. The window 6 is attached between the first short vertical section 15 and the back transverse section 12, or between the front transverse section 11 and the second short vertical section 16, or between the first short vertical section 15 and the second short vertical section 16. In this embodiment, the first short vertical section 15 and the second short vertical section 16 are preferably used together, so that the window 6 is placed in the attachment space 17 by being clamped by the first short vertical section 15 and the second short vertical section 16.

[0033] A positioning groove 141 is vertically recessed on the outer side of the positioning vertical section 14; the positioning groove 141 is located at the center of the outer side of the positioning vertical section 14, and the positioning groove 141 is V-shaped; the lifting connector 2 and the pulley assembly 3 can be installed and positioned in an aligned manner through the positioning groove 141, ensuring that the installation positions of the lifting connector 2 and the pulley assembly 3 will not be offset. In the application of this embodiment, the lifting connector 2 or the pulley assembly 3 can be penetrated by screws, and then the positioning groove 141 can be directly nailed to simply realize the installation of the corresponding lifting connector 2 and the pulley assembly 3 to the positioning vertical section 14; or a connection hole can be pre-set corresponding to the positioning groove 141, so that a screw or bolt is placed in the connection hole to form a positioning installation of the lifting connector 2 and the pulley assembly 3.

[0034] The front transverse section 11 is vertically recessed with a transverse section groove 111 on the inner side between the positioning vertical section 14 and the connecting vertical section 13. The transverse section groove 111 is positioned close to the connecting vertical section 13, so that the lower end of the profile body 1 is positioned and attached to the anti-collision block 4 on the inner side between the positioning vertical section 14 and the connecting vertical section 13 of the front transverse section 11. The lower end of the anti-collision block 4 extends beyond the lower end of the profile body 1 to meet the situation where the window accidentally collides with the lower side of the fume hood when it falls. Using the same installation principle as the positioning groove 141 on the positioning vertical section 14, a screw can be inserted into the anti-collision block 4, and then the anti-collision block 4 can be nailed into the transverse section groove 111 to achieve the installation of the anti-collision block 4.

[0035] Example 2:

[0036] Based on the application of the above embodiment 1, this embodiment describes the structural arrangement of a lifting connector 2 and the installation method of the lifting connector 2 and the connection structure with the window frame profile.

[0037] The outer side of the positioning vertical section 14 is positioned and attached to the lifting connector 2. The lifting connector 2 is provided with a mounting buckle 201 for attaching a lifting belt 200. The lifting belt 200 is attached to the mounting buckle 201. In the lifting window structure, the positioning vertical section 14, the lifting connector 2, and the lifting belt 200 are placed in the side mounting space 51. The front transverse section 11 extends out of the cabinet side wall 5 through the side opening 52.

[0038] The lifting connection member 2 includes a connecting plate body 21, and the connecting plate body 21 includes a positioning section 211 located at the bottom and a connecting section 212 located at the top. The positioning section 211 is wider than the connecting section 212. An extension section 213 is extended horizontally inside the connecting section 212, and a mounting buckle 201 is provided on the extension section 213.

[0039] The fume hood is provided with a lifting motor, the driving end of the lifting motor is connected to the lifting belt 200, one end of the lifting belt 200 is positioned and connected to the installation buckle 201, and is driven by the corresponding auxiliary pulley. The lifting motor drives the lifting belt 200 to move up and down in the vertical direction, which can drive the lifting connector 2 to link the lifting window structure as a whole to move up and down along the guide sliding of the pulley assembly 3 in the side installation space 51.

[0040] As a preferred structural setting, in the lifting connector 2, a plurality of positioning holes 2111 are provided in the center of the positioning section 211 along the vertical direction to facilitate the insertion of external screws, so that the screws can pass through the positioning holes 2111 and be connected to the lifting connector 2, thereby realizing the positioning nailing application of the lifting connector 2.

[0041] The extension section 213 extends outward from the middle of the width of the positioning section 211, extending perpendicularly to the connecting plate 21. In the connecting plate 21, the positioning section 211 is a vertically extending rectangle, the connecting section 212 is a vertically extending rectangle, the extension section 213 is a horizontally extending rectangle, and the mounting buckle 201 is a horizontally extending rectangular hole. The corners of the positioning section 211, connecting section 212, extension section 213, and mounting buckle 201 are rounded and polished to correspond to their shapes.

[0042] Example 3:

[0043] Based on the application of the above embodiment, this embodiment describes the structure of a pulley assembly 3 and the installation relationship between the pulley assembly 3 and the window frame profile structure.

[0044] The pulley assembly 3 is positioned and mounted on the outer side of the positioning vertical section 14, and the pulley guide end surface 31 of the pulley assembly 3 is arranged to be guided in the vertical direction toward the side away from the positioning vertical section 14. The pulley assembly 3 includes a vertically extending positioning plate section 32, and the upper and lower ends of the positioning plate section 32 are provided with mounting holes for screws to pass through and nails to be nailed. The positioning plate section 32 is connected to the movable arm 33 by a rotating shaft, and the extended end rotating shaft of the movable arm 33 is connected to the guide pulley 34. The side mounting space 51 is provided with a vertically extending pulley guide groove corresponding to the bottom side position of the side opening 52, and the pulley guide end surface 31 of the guide pulley 34 is placed in the pulley guide groove, and the lifting window structure is guided by the pulley guide groove to realize the lifting and sliding application; a reset spring is connected between the movable arm 33 and the positioning plate section 32, and the reset spring applies a reset elastic force to the movable arm 33 to make the guide pulley 34 toward the pulley guide groove, thereby ensuring that the guide pulley 34 is stably placed in the pulley guide groove, thereby ensuring that the lifting and lowering movement of the lifting window structure is smooth.

[0045] The above is only a preferred embodiment of the present invention. Those skilled in the art can modify the embodiment without departing from the implementation principle of the present invention, and the corresponding modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A lifting connector, characterized in that: It includes a connecting plate body extending vertically, the connecting plate body includes a positioning section located at the bottom and a connecting section located at the top, the positioning section is wider than the connecting section, an extension section is extended horizontally on the inner side of the connecting section, and a mounting buckle is provided on the extension section.

2. The lifting connector according to claim 1, wherein: A plurality of positioning holes are arranged in the center of the positioning section along the vertical direction.

3. The lifting connector according to claim 1, wherein: The extension section extends outward from a middle position in the width direction of the positioning section.

4. The lifting connection member according to claim 3, wherein: The extending direction of the extending section is perpendicular to the connecting plate body.

5. The lifting connector according to any one of claims 1 to 4, characterized in that: In the connecting plate body, the positioning section is a vertically extending rectangle, the connecting section is a vertically extending rectangle, the extending section is a horizontally extending rectangle, and the mounting buckle is a horizontally extending rectangular hole.

6. The lifting connection member according to claim 5, characterized in that: The intersection angles of the positioning section, the connecting section, the extending section or the mounting buckle position corresponding to their shapes are chamfered.

7. The lifting window structure is characterized by: It comprises a side window frame, the outer side of the side window frame is connected to a lifting belt via a lifting connector as claimed in any one of claims 1 to 6, and one end of the lifting belt is positioned and connected to the installation buckle.

8. The lifting window structure according to claim 7, characterized in that: A pulley assembly is arranged on the outer side of the side window frame.

9. Fume hood, characterized in that, The lifting window structure as described in claim 7 or 8 also includes a cabinet side wall, and a side installation space extending vertically inward is set at the front end of the cabinet side wall, and a side opening vertically connected inward is set in the side installation space, and the side window frame and the lifting belt are placed in the side installation space.

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