Shadowless gas distribution cover

Abstract

The utility model discloses a shadowless gas distribution cover which comprises a cover body, a gas distribution chamber is arranged in the cover body, a gas inlet communicated with the gas distribution chamber is arranged on the cover body, a gas outlet is arranged at the bottom of the cover body, a gas distribution hole plate is fixedly installed at the gas outlet, strip-shaped light bars are arranged on the periphery and / or the middle of the cover body, and the light bars are arranged on the periphery and / or the middle of the cover body. A plurality of lamp beads are arranged on each lamp strip, the irradiation direction of the lamp beads faces an operation area below the air distribution hole plate, and a conductive structure electrically connected with the lamp beads is arranged on the cover body. The shadowless gas distribution cover can provide multi-light-source illumination while meeting gas distribution, so that no shadow exists in a dissection operation area, and smooth proceeding of a dissection experiment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory specimen dissection, in particular to a shadowless air distribution hood. Background Art

[0002] In the technical field of laboratory specimen dissection, an air distribution hood is needed. The main structure of the air distribution hood includes a hood body. The lower end of the hood body is an air outlet and is provided with an air distribution hole plate. The air distribution hood is connected to a gas supply system. The air distribution hood is integrally installed above the dissection test bench. The gas supply system blows clean and odorless gas from top to bottom through the air distribution hole plate of the air distribution hood to the experimental operation area. In this way, the odor on the specimen is prevented from flowing upward and being smelled by the operator, so as to ensure that the air passing through the mouth and nose of the test personnel is relatively clean and the air quality of the experimental operation is better.

[0003] The document with the publication number of CN117739506A records an aerodynamic air distribution system with an air flow organization conversion function. The structure of this air distribution system is relatively complex, the height of the hood body can be adjusted, and the air outlet ratio can also be adjusted. However, although this air distribution system can also be used in the laboratory, due to its complex structure and the need to place the air distribution system above the operation area, when the light in the laboratory shines from top to bottom, shadows will be generated, which will affect the dissection experiment. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a shadowless air distribution hood that can meet air distribution and provide multi-source lighting at the same time, so that there is no shadow in the dissection operation area and the smooth progress of the dissection experiment is ensured.

[0005] To solve the above technical problem, the technical solution of the utility model is: a shadowless air distribution hood, including a hood body. An air distribution chamber is arranged in the hood body. An air inlet communicated with the air distribution chamber is arranged on the hood body. An air outlet is arranged at the bottom of the hood body. An air distribution hole plate is fixedly installed at the air outlet. Strip-shaped lamp strips are arranged on the periphery and / or in the middle of the hood body. A plurality of lamp beads are arranged on each lamp strip. The irradiation direction of the lamp beads faces the operation area below the air distribution hole plate. A conductive structure electrically connected to the lamp beads is arranged on the hood body.

[0006] As a preferred solution, the lamp strip includes a strip-shaped mounting seat. The strip-shaped mounting seat is detachably fixed on the hood body. The lamp beads are linearly arranged and detachably fixed on the strip-shaped mounting seat.

[0007] As a preferred solution, strip-shaped mounting holes extending along the length direction of the strip-shaped mounting base are provided on the strip-shaped mounting base, and a plurality of modular lamp holders are detachably mounted in the strip-shaped mounting holes. An installation chamber convenient for installing lamp beads is provided on each modular lamp holder, and a conductive structure electrically connected to the lamp beads on each modular lamp holder is provided on the strip-shaped mounting base.

[0008] As a preferred solution, the modular lamp holder includes a lamp holder body. A plurality of the installation chambers are provided on the lamp holder body, and the lamp beads are respectively mounted in the installation chambers in a one-to-one correspondence. Electric contacts electrically connected to the lamp beads in the installation chambers are provided on the lamp holder body. The lamp holder body is clamped and fixed in the strip-shaped mounting hole. The conductive structure includes a conductive sheet fixedly provided on the strip-shaped mounting base. The electric contact contacts the conductive sheet, and the conductive sheet is used for connecting to an external power supply.

[0009] As a preferred solution, a plurality of elastic protrusions are provided on the lamp holder body. Correspondingly, clamping grooves cooperating with the elastic protrusions are provided on the hole wall of the strip-shaped mounting hole.

[0010] As a preferred solution, the clamping grooves extend along the length direction of the strip-shaped mounting base, the elastic protrusions are clamped in the clamping grooves, and adjacent modular lamp holders are arranged in contact with each other in a straight line.

[0011] As a preferred solution, an installation strip groove convenient for installing the conductive sheet is further provided on the hole wall of the strip-shaped mounting hole. The conductive sheet is fixed in the installation strip groove, and the electric contacts on each lamp holder body are in conductive contact with the conductive sheet in the installation strip groove.

[0012] As a preferred solution, a strip-shaped clamping groove is provided on the outer periphery of the air distribution hole plate of the cover body, the strip-shaped mounting base is clamped in the strip-shaped clamping groove, and the lower end of the strip-shaped mounting base is inclined towards the middle.

[0013] As a preferred solution, a lighting lamp is further fixedly installed in the middle of the air distribution hole plate.

[0014] As a preferred solution, a support connecting rod for supporting and connecting the air distribution hole plate is further provided in the air distribution chamber, and both ends of the support connecting rod are connected between the upper end surface of the cover body and the air distribution hole plate.

[0015] After adopting the above technical solution, the effects of the present utility model are as follows: Since a shadowless air distribution hood includes a hood body, a air distribution chamber is arranged inside the hood body, an air inlet communicated with the air distribution chamber is arranged on the hood body, an air outlet is arranged at the bottom of the hood body, a air distribution hole plate is fixedly installed at the air outlet, strip-shaped lamp strips are arranged on the periphery and / or middle of the hood body, a plurality of lamp beads are arranged on each lamp strip, the irradiation direction of the lamp beads faces the operation area below the air distribution hole plate, and a conductive structure electrically connected to the lamp beads is arranged on the hood body. Therefore, when this shadowless air distribution hood is installed above the dissection table and the air inlet is connected to the air supply system, clean and odorless air can be supplied into the air distribution chamber, and then evenly distributed by the air distribution hole plate to form an air curtain flowing from top to bottom, so that the odor volatilized from the specimen can be pressed down, thus preventing the operator's nose from smelling it and ensuring better air quality during operation. At the same time, since lamp strips are arranged around the air distribution hole plate and a plurality of lamp beads are arranged on the lamp strips, these lamp beads can form a plurality of point light sources after being connected to the power supply, and these point light sources all irradiate on the operation area, thereby weakening the shadow and achieving the shadowless effect, making it more convenient for specimen dissection.

[0016] Also, since the lamp strip includes a strip-shaped mounting seat, the strip-shaped mounting seat is detachably fixed on the hood body, and the lamp beads are linearly arranged and detachably fixed on the strip-shaped mounting seat. Therefore, the strip-shaped mounting seat can be removed from the hood body, and the lamp beads can also be removed from the strip-shaped mounting seat, which is convenient for replacement and maintenance.

[0017] Also, since strip-shaped mounting holes extending along the length direction of the strip-shaped mounting seat are arranged on the strip-shaped mounting seat, a plurality of modular lamp seats are detachably installed in the strip-shaped mounting holes, an installation chamber convenient for installing lamp beads is arranged on each modular lamp seat, and a conductive structure electrically connected to the lamp beads on each modular lamp seat is arranged on the strip-shaped mounting seat. Therefore, when a certain lamp bead is not lit, the modular lamp seat can be directly removed, which reduces the difficulty of replacing the lamp bead and makes the replacement operation simpler.

[0018] Also, since the modular lamp seat includes a lamp seat body, a plurality of the installation chambers are arranged on the lamp seat body, the lamp beads are respectively installed in the installation chambers in one-to-one correspondence, electrical contacts electrically connected to the lamp beads in the installation chambers are arranged on the lamp seat body, the lamp seat body is clamped and fixed in the strip-shaped mounting hole, the conductive structure includes a conductive sheet fixedly arranged on the strip-shaped mounting seat, the electrical contacts are in contact with the conductive sheet, and the conductive sheet is used for connecting to an external power supply. Therefore, the modular lamp seat uses the electrical contacts to contact the conductive sheet, so that only by clamping the lamp seat body in the strip-shaped mounting hole during installation can the conductive connection be ensured.

[0019] Also, since a number of elastic protrusions are provided on the lamp socket body, correspondingly, clamping grooves that cooperate with the elastic protrusions are provided on the hole wall of the strip-shaped mounting hole. The clamping grooves extend along the length direction of the strip-shaped mounting seat, and the elastic protrusions are clamped in the clamping grooves, and adjacent modular lamp sockets are in contact with each other and arranged in a straight line. The assembly of the elastic protrusions and the clamping grooves can better fix the lamp socket body. At the same time, since the clamping grooves are also strip-shaped, multiple lamp socket bodies can be better arranged closely together.

[0020] Also, since mounting strip grooves for facilitating the installation of the conductive sheets are further provided on the hole wall of the strip-shaped mounting hole, the conductive sheets are fixed in the mounting strip grooves, and the electrical contacts on each lamp socket body are in conductive contact with the conductive sheets in the mounting strip grooves. In this way, no matter where the lamp socket body is arranged on the strip-shaped mounting seat, the electrical contacts can be in reliable conductive contact with the conductive sheets in the mounting strip grooves. In this way, the length of the lamp socket body can be divided according to specific conditions, and the manufacturing and installation are more simple.

[0021] Also, since a strip-shaped clamping groove is provided on the outer periphery of the air distribution hole plate of the cover body, the strip-shaped mounting seat is clamped in the strip-shaped clamping groove, and the lower end of the strip-shaped mounting seat is inclined towards the middle. In this way, the lamp beads can ensure the same angle in the strip-shaped mounting seat, and only by tilting the strip-shaped mounting seat can it be ensured that each lamp bead irradiates towards the operation area.

[0022] Also, since a lighting lamp is fixedly installed in the middle of the air distribution hole plate, the lighting lamp can provide sufficient illumination, and the surrounding lamp beads are used to weaken and eliminate shadows. The air distribution chamber is also provided with support connecting rods that support and connect the air distribution hole plate. The two ends of the support connecting rods are connected between the upper end surface of the cover body and the air distribution hole plate. The support connecting rods can better support the cover body, make the air distribution hole plate better connected to the cover body, and ensure that the cover body has sufficient strength. Description of the Drawings

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 is a perspective view of an embodiment of the present utility model;

[0025] Figure 2 is a top view of an embodiment of the present utility model;

[0026] Figure 3 is Figure 2 a cross-sectional view taken along A-A;

[0027] Figure 4 is Figure 3 an enlarged view taken at B;

[0028] Figure 5 is a partial view of the lamp strip;

[0029] Figure 6 is a perspective view of a modular lamp socket;

[0030] Figure 7 is a bottom perspective view of the modular lamp socket;

[0031] Figure 8 is a perspective view of an air distribution cover with another structure;

[0032] In the attached drawings: 1. Cover body; 2. Air distribution hole plate; 21. Strip-shaped card slot; 3. Lighting lamp; 4. Air inlet; 5. Lamp strip; 51. Strip-shaped mounting seat; 511. Card mounting slot; 512. Mounting strip slot; 513. Limiting edge; 52. Modular lamp socket; 521. Mounting chamber; 53. Lamp bead; 54. Elastic protrusion; 55. Electrical contact; 6. Support connecting rod; 7. Air distribution chamber. Specific embodiments

[0033] The following further describes the present utility model in detail through specific embodiments.

[0034] As Figures 1 to 7 shown, a shadowless air distribution cover includes a cover body 1. An air distribution chamber 7 is arranged inside the cover body 1. An air inlet 4 communicating with the air distribution chamber 7 is arranged on the cover body 1. An air outlet is arranged at the bottom of the cover body 1. An air distribution hole plate 2 is fixedly installed at the air outlet. Among them, a support connecting rod 6 for supporting and connecting the air distribution hole plate 2 is further arranged in the air distribution chamber 7. The number of the support connecting rods 6 is multiple. Both ends of the support connecting rod 6 are connected between the upper end surface of the cover body 1 and the air distribution hole plate 2. The support connecting rod 6 and the cover body 1 and the air distribution hole plate 2 can be fixed by bolts or welding. A lighting lamp 3 is further fixedly installed in the middle of the air distribution hole plate 2. The lighting lamp 3 is also arranged in a strip shape, and the lighting width can be optimized according to specific lighting brightness requirements.

[0035] Strip-shaped lamp strips 5 are arranged around the cover body 1. A plurality of lamp beads 53 are arranged on each lamp strip 5. The irradiation direction of the lamp beads 53 faces the operation area below the air distribution hole plate 2. A conductive structure electrically connected to the lamp beads 53 is arranged on the cover body 1. The conductive structure is used to electrically connect the external mains power to the lamp beads 53 of the lamp strip 5 to achieve power supply.

[0036] As Figure 8 shown, Figure 8 the lamp strips 5 of the air distribution cover in Figure 8The cross-shaped arrangement can also adopt a diamond-shaped arrangement. The irradiation directions of multiple light bars 5 still focus on the operation area, so that the shadowless effect can also be achieved. Of course, the light bars 5 can also be arranged around and in the middle, and a similar effect can also be achieved.

[0037] As Figure 1 , 3 and Figure 4 shown, the light bar 5 includes a strip-shaped mounting base 51, and the strip-shaped mounting base 51 is detachably fixed on the cover body 1. Preferably, the strip-shaped mounting base 51 is detachably fixed by a clamping method, and the lamp beads 53 are linearly arranged and detachably fixed on the strip-shaped mounting base 51.

[0038] A strip-shaped mounting hole extending along the length direction of the strip-shaped mounting base 51 is provided on the strip-shaped mounting base 51. A limiting edge 513 is provided on the strip-shaped mounting base 51. A strip-shaped clamping groove is provided on the outer periphery of the air distribution hole plate 2 of the cover body 1. The strip-shaped mounting base 51 is clamped in the strip-shaped clamping groove 21, and the lower end of the strip-shaped mounting base 51 is inclined towards the middle. And a limiting edge 513 is provided on the lower edge of the strip-shaped mounting base 51. When the strip-shaped mounting base 51 is inserted into the strip-shaped clamping groove 21, the limiting can be achieved when the limiting edge 513 contacts the air distribution hole plate 2. A plurality of modular lamp holders 52 are detachably installed in the strip-shaped mounting hole. An installation chamber 521 convenient for installing the lamp beads 53 is provided on each modular lamp holder 52. A conductive structure electrically connected to the lamp beads 53 on each modular lamp holder 52 is provided on the strip-shaped mounting base.

[0039] As Figures 5 to 7 shown, the modular lamp holder 52 includes a lamp holder body. A plurality of the installation chambers 521 are provided on the lamp holder body. The lamp beads 53 are respectively installed in the installation chambers 521. Electric contacts 55 electrically connected to the lamp beads 53 in the installation chambers 521 are provided on the lamp holder body. The lamp holder body is clamped and fixed in the strip-shaped mounting hole. The conductive structure includes a conductive sheet fixedly arranged on the strip-shaped mounting base 51. The electric contacts 55 contact the conductive sheet, and the conductive sheet is used for connecting to an external power supply. In this embodiment, the transverse cross-section of the lamp holder body is a convex-shaped structure composed of two rectangles with different widths, and the electric contacts 55 are arranged on the small-width protrusion.

[0040] Among them, as Figure 5As shown, a number of elastic protrusions 54 are provided on the lamp socket body. Correspondingly, a clamping groove 511 that cooperates with the elastic protrusions 54 is provided on the hole wall of the strip-shaped mounting hole. The elastic protrusion 54 is preferably a marble that can elastically expand and contract. The marble is snapped into the clamping groove 511 to complete the fixation. The clamping groove 511 extends along the length direction of the strip-shaped mounting base 51. Since the clamping groove 511 is also strip-shaped, the lamp socket body can be snapped into the strip-shaped mounting hole from any position and can slide axially. In this way, it can be ensured that adjacent modular lamp sockets 52 are in contact with each other and are arranged in a straight line more closely.

[0041] In this embodiment, an installation strip groove 512 for facilitating the installation of the conductive sheet is further provided on the hole wall of the strip-shaped mounting hole. The conductive sheet is fixed in the installation strip groove 512, and the electrical contacts 55 on each lamp socket body are in conductive contact with the conductive sheet in the installation strip groove 512.

[0042] During use, only need to fix the shadowless cloth air hood above the specimen dissection table, and after connecting the power supply and the air source, clean air will form an air flow downward from the cloth air hole plate 2, thus pressing down the odor emitted by the specimen that would originally flow upward, avoiding the operator from inhaling. At the same time, since the multiple lamp beads 53 on the lamp strip 5 illuminate, the operation area can achieve a shadowless effect.

[0043] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and modifications made to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An air distribution hood without a shadow, comprising a hood body, wherein an air distribution chamber is arranged inside the hood body, an air inlet communicating with the air distribution chamber is arranged on the hood body, an air outlet is arranged at the bottom of the hood body, and an air distribution hole plate is fixedly installed at the air outlet, and it is characterized in that: On the cover body, strip-shaped light bars are arranged around and / or in the middle of the air distribution hole plate. A plurality of lamp beads are arranged on each light bar, and the irradiation direction of the lamp beads faces the operation area below the air distribution hole plate. A conductive structure electrically connected to the lamp beads is arranged on the cover body.

2. The shadowless air hood according to claim 1, wherein: The light bar includes a strip-shaped mounting seat, the strip-shaped mounting seat is detachably fixed on the cover body, and the lamp beads are linearly arranged and detachably fixed on the strip-shaped mounting seat.

3. The shadowless air hood according to claim 2, characterized in that: The strip-shaped mounting seat is provided with strip-shaped mounting holes extending along the length direction of the strip-shaped mounting seat. A plurality of modular lamp seats are detachably mounted in the strip-shaped mounting holes. Each modular lamp seat is provided with a mounting chamber convenient for installing lamp beads. A conductive structure electrically connected to the lamp beads on each modular lamp seat is arranged on the strip-shaped mounting seat.

4. The shadowless air hood according to claim 3, wherein: The modular lamp seat includes a lamp seat body. A plurality of the mounting chambers are arranged on the lamp seat body. The lamp beads are respectively mounted in the mounting chambers in one-to-one correspondence. Electric contacts electrically connected to the lamp beads in the mounting chambers are arranged on the lamp seat body. The lamp seat body is clamped and fixed in the strip-shaped mounting holes. The conductive structure includes a conductive sheet fixedly arranged on the strip-shaped mounting seat. The electric contact contacts the conductive sheet, and the conductive sheet is used for connecting to an external power supply.

5. The shadowless air distribution hood according to claim 4, characterized in that: A plurality of elastic protrusions are arranged on the lamp seat body. Correspondingly, clamping grooves matched with the elastic protrusions are arranged on the hole wall of the strip-shaped mounting hole.

6. The shadowless air hood according to claim 5, characterized in that: The clamping grooves extend along the length direction of the strip-shaped mounting seat. The elastic protrusions are clamped in the clamping grooves, and adjacent modular lamp seats are in contact with each other and linearly arranged.

7. The shadowless air hood according to claim 6, characterized in that: Mounting strip grooves convenient for installing the conductive sheet are further arranged on the hole wall of the strip-shaped mounting hole. The conductive sheet is fixed in the mounting strip grooves, and the electric contacts on each lamp seat body are in conductive contact with the conductive sheet in the mounting strip grooves.

8. The shadowless air hood according to claim 7, characterized in that: A strip-shaped clamping groove is arranged on the outer periphery of the air distribution hole plate of the cover body. The strip-shaped mounting seat is clamped in the strip-shaped clamping groove, and the lower end of the strip-shaped mounting seat is inclined towards the middle.

9. The shadowless air hood according to claim 1, characterized in that: A lighting lamp is further fixedly installed in the middle of the air distribution hole plate.

10. The shadowless air hood according to claim 1, wherein: The air distribution chamber is further provided with a support connecting rod for supporting and connecting the air distribution hole plate. Both ends of the support connecting rod are connected between the upper end surface of the cover body and the air distribution hole plate.

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