A constant pressure dropping funnel

Abstract

This utility model discloses a constant pressure dripping funnel, relating to the field of experimental equipment technology. It includes a funnel assembly and an adjusting assembly. The funnel assembly includes a funnel body, with a feed inlet fixedly installed at the top and a stopper fitted into the inner cavity of the feed inlet. A hollow tube is fixedly installed at the bottom of the funnel body, and a discharge outlet is fixedly installed at the middle of the bottom of the hollow tube. The adjusting assembly includes a housing fixedly installed on the right side of the hollow tube. A knob is movably connected to the front of the housing, and a screw is fixedly connected to the rear of the knob. A screw block is threaded onto the surface of the screw. This utility model, by setting up the adjusting assembly, allows through-holes of different inner cavity sizes to be moved to the same vertical direction as the funnel body and the discharge outlet. The dripping liquid passes through the through-holes of different inner cavities, allowing for flexible adjustment of the feeding speed and ensuring the flexibility and stability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment separation technology, specifically to a constant pressure dropping funnel. Background Technology

[0002] A constant-pressure dropping funnel is a commonly used laboratory instrument for adding liquids. It controls the rate or process of a chemical reaction by adjusting the rate at which the liquid is dropped, thereby obtaining a product with a specific structure. However, traditional constant-pressure dropping funnels have a relatively fixed orifice size and lack adjustment capabilities.

[0003] For example, Chinese Patent Publication No. (CN 216336570 U) discloses a temperature-controlled constant-pressure dripping funnel, including a constant-pressure tube, a dripping funnel body with an inlet, and a constant-temperature tube sleeve with an outlet; the outlet is not connected to the constant-temperature tube sleeve, and the constant-temperature tube sleeve is provided with a constant-temperature liquid inlet end and a constant-temperature liquid outlet end; the dripping funnel body is nested inside the constant-temperature tube sleeve, and the upper end of the constant-temperature tube sleeve is connected to the inlet to form a sealed space defined by the side wall of the dripping funnel body and the side wall of the constant-temperature tube sleeve; a dripping tube is provided on the dripping funnel body, a control valve is provided on the dripping tube, and a drip nozzle is provided on the free end of the dripping tube, which passes through the tube wall of the constant-temperature tube sleeve and protrudes into the outlet; one end of the constant-pressure tube is connected to the dripping funnel body, and the other end is connected to the outlet.

[0004] When in use, it is impossible to flexibly adjust the feeding speed according to the exothermic reaction or the stability of the intermediate, and it is impossible to accurately repeat the same feeding conditions, which greatly reduces the reliability and repeatability of experimental results, seriously affects the accuracy of scientific research or production data, and is inconvenient for operators to use. Utility Model Content

[0005] The main purpose of this invention is to provide a constant pressure dripping funnel to overcome the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A constant pressure dropping funnel includes a funnel assembly and an adjusting assembly. The funnel assembly includes a funnel body, an inlet fixedly installed at the top of the funnel body, a stopper snapped into the inner cavity of the inlet, a hollow tube fixedly installed at the bottom of the funnel body, an outlet fixedly installed at the middle end of the bottom of the hollow tube, the outlet, the hollow tube and the inner cavity of the funnel body are all interconnected, and a constant pressure tube is connected to the rear side of the funnel body, the other end of the constant pressure tube being interconnected with the inner cavity of the outlet.

[0008] The adjustment assembly includes a housing, which is fixedly installed on the right side of the hollow tube. A knob is movably connected to the front of the housing, and a screw is fixedly connected to the rear of the knob. A screw block is threaded onto the surface of the screw. A slide rod is fixedly installed on the rear of the inner cavity of the housing, and a slider is slidably connected to the surface of the slide rod. Movable rods are movably connected to the left sides of both the slide rod and the slider. Moving blocks are movably connected to the other ends of the two movable rods. An installation rod is fixedly installed on the left side of the moving block, and an adjustment block is fixedly installed on the left side of the installation rod. Each adjustment block has a through hole on its surface, and the dimensions of the three through holes increase sequentially from left to right.

[0009] Furthermore, a connecting plate is movably connected to the right side of both the screw block and the slider, and an adjusting plate is movably connected to the other end of the two connecting plates. The adjusting plate is movably connected to the right side of the inner cavity of the box.

[0010] Furthermore, a slot is provided on the left side of the box surface, and the mounting rod passes through the inner cavity of the slot and extends into the inner cavity of the hollow tube.

[0011] Furthermore, the upper and lower sides of the box surface are provided with moving grooves, and the upper and lower sides of the moving block are slidably connected to the inner cavities of the two moving grooves.

[0012] Furthermore, a guide rod is fixedly installed on the rear side of the inner cavity of the box, and the slider is slidably connected to the surface of the guide rod.

[0013] Furthermore, a limiting rod is fixedly installed on the front side of the inner cavity of the box, and the screw block is slidably connected to the surface of the limiting rod.

[0014] Furthermore, a first sealing gasket is fixedly installed on the left side of the inner cavity of the box, and the inner side of the first sealing gasket is attached to the surface of the mounting rod.

[0015] Furthermore, a second sealing gasket is fixedly installed in the inner cavity of the hollow tube, and the second sealing gasket is attached to the surface of the adjusting block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up the adjustment component and rotating the knob, the screw block, through the cooperation of the connecting plate and the adjustment plate, drives the slider to move in the opposite direction synchronously. At this time, the slider and the screw block cooperate with the movable rod, and the mounting rod drives the adjustment block to move. By adjusting the position of the adjustment block, the through holes of different inner cavity sizes can be moved to the same vertical direction of the funnel body and the discharge port. The dripping liquid passes through the through holes of different inner cavities, and the feeding speed can be flexibly adjusted, ensuring the flexibility and stability of the equipment and making it convenient for operators to use.

[0018] By setting a slot, the movement of the mounting rod can be limited to prevent it from deviating during movement, thus affecting the adjustment of the dripping speed. By setting a moving groove, the movement of the moving block can be limited to prevent it from deviating during movement, thus affecting the adjustment of the position of the adjusting block. By setting a guide rod, the movement of the slider can be limited to ensure the accuracy of the slider's movement. By setting a limit rod, the movement of the screw block can be limited to prevent it from rotating synchronously with the screw. By setting a first sealing gasket, the position where the mounting rod is inserted into the hollow tube cavity can be sealed to prevent material leakage from its connection. By setting a second sealing gasket, the four sides of the adjusting block can be sealed to prevent material leakage from the outside of the adjusting block. Attached Figure Description

[0019] Figure 1 This is a three-dimensional front view structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the constant pressure tube structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the hollow tube of this utility model.

[0022] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the slot structure of this utility model.

[0024] Figure 6 This is a schematic diagram of the internal structure of the box body of this utility model.

[0025] Reference numerals: 1. Funnel assembly; 101. Funnel body; 102. Inlet; 103. Bottle stopper; 104. Hollow tube; 105. Outlet; 106. Constant pressure tube; 2. Adjustment assembly; 201. Box body; 202. Knob; 203. Screw; 204. Screw block; 205. Slide rod; 206. Slider; 207. Connecting plate; 208. Adjusting plate; 209. Movable rod; 210. Moving block; 211. Mounting rod; 212. Adjusting block; 213. Through hole; 214. Groove; 215. Moving groove; 216. Guide rod; 217. Limiting rod; 218. First sealing gasket; 219. Second sealing gasket. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Combination Figures 1 to 6This embodiment provides a constant pressure dripping funnel, including a funnel assembly 1 and an adjustment assembly 2. The funnel assembly 1 includes a funnel body 101, an inlet 102 fixedly installed on the top of the funnel body 101, a stopper 103 snapped into the inner cavity of the inlet 102, a hollow tube 104 fixedly installed on the bottom of the funnel body 101, an outlet 105 fixedly installed at the middle end of the bottom of the hollow tube 104, the outlet 105, the hollow tube 104 and the inner cavity of the funnel body 101 are all interconnected, a constant pressure tube 106 is connected to the rear side of the funnel body 101, and the other end of the constant pressure tube 106 is interconnected with the inner cavity of the outlet 105.

[0028] Adjustment component 2 includes a housing 201, which is fixedly installed on the right side of the hollow tube 104. A knob 202 is movably connected to the front of the housing 201, and a screw 203 is fixedly connected to the rear of the knob 202. A screw block 204 is threaded onto the surface of the screw 203. A slide rod 205 is fixedly installed on the rear of the inner cavity of the housing 201, and a slider 206 is slidably connected to the surface of the slide rod 205. Movable rods 209 are movably connected to the left sides of both the slide rod 205 and the slider 206. A movable block 210 is movably connected to the end of the housing 201. An installation rod 211 is fixedly installed on the left side of the movable block 210. An adjustment block 212 is fixedly installed on the left side of the installation rod 211. Each of the adjustment blocks 212 has a through hole 213 on its surface. The size of the inner cavity of the three through holes 213 increases from left to right. A connecting plate 207 is movably connected to the right side of the screw block 204 and the slider 206. An adjustment plate 208 is movably connected to the other end of the two connecting plates 207. The adjustment plate 208 is movably connected to the right side of the inner cavity of the housing 201.

[0029] By setting the adjustment component 2 and rotating the knob 202, the screw block 204, through the cooperation of the connecting plate 207 and the adjustment plate 208, drives the slider 206 to move synchronously in the opposite direction. At this time, the slider 206 and the screw block 204 cooperate with the movable rod 209, and the mounting rod 211 drives the adjustment block 212 to move. By adjusting the position of the adjustment block 212, the through holes 213 of different inner cavity sizes can be moved to the same vertical direction of the funnel body 101 and the discharge port 105. The dripping liquid passes through the through holes 213 of different inner cavities, and the feeding speed can be flexibly adjusted, ensuring the flexibility and stability of the equipment and making it convenient for operators to use.

[0030] like Figure 3-6As shown, in one embodiment, a slot 214 is provided on the left side of the surface of the box 201. The mounting rod 211 passes through the inner cavity of the slot 214 and extends into the inner cavity of the hollow tube 104. Moving slots 215 are provided on both the upper and lower sides of the surface of the box 201. The upper and lower sides of the moving block 210 are slidably connected to the inner cavities of the two moving slots 215. A guide rod 216 is fixedly installed on the rear side of the inner cavity of the box 201. The slider 206 is slidably connected to the surface of the guide rod 216. A limit rod 217 is fixedly installed on the front side of the inner cavity of the box 201. The screw block 204 is slidably connected to the surface of the limit rod 217. A first sealing gasket 218 is fixedly installed on the left side of the inner cavity of the box 201. The inner side of the first sealing gasket 218 is attached to the surface of the mounting rod 211. A second sealing gasket 219 is fixedly installed in the inner cavity of the hollow tube 104. The second sealing gasket 219 is attached to the surface of the adjusting block 212.

[0031] By setting the slot 214, the movement of the mounting rod 211 can be limited to prevent it from deviating during movement, thus affecting the adjustment of the dripping speed. By setting the moving groove 215, the movement of the moving block 210 can be limited to prevent it from deviating during movement, thus affecting the adjustment of the position of the adjusting block 212. By setting the guide rod 216, the movement of the slider 206 can be limited to ensure the accuracy of the slider 206's movement. By setting the limiting rod 217, the movement of the screw block 204 can be limited to prevent it from rotating synchronously with the screw 203. By setting the first sealing gasket 218, the position where the mounting rod 211 is inserted into the inner cavity of the hollow tube 104 can be sealed to prevent material leakage from its connection. By setting the second sealing gasket 219, the circumference of the adjusting block 212 can be sealed to prevent material leakage from the outside of the adjusting block 212.

[0032] When this utility model is in operation: when it is necessary to adjust the feeding speed of the funnel body 101, by rotating the knob 202, the screw 203 rotates synchronously and drives the screw block 204 to move. At this time, the connecting plate 207 connected to the screw block 204 cooperates with the adjusting plate 208, so that the adjusting plate 208 drives the connecting plate 207 connected to the slider 206 to adjust. At this time, the slider 206 moves synchronously in the opposite direction to the screw block 204. At this time, the screw block 204 and the slider 206 cooperate with the movable rod 209, so that the moving block 210 drives the mounting rod 211 and the adjusting block 212 to move. As the adjusting block 212 moves, the through holes 213 of different sizes move to the same vertical direction of the discharge port 105 and the funnel body 101. By adjusting the size of the holes at the discharge position, the feeding speed can be adjusted.

[0033] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A constant pressure dropping funnel characterized in that, The device includes a funnel assembly (1) and an adjustment assembly (2). The funnel assembly (1) includes a funnel body (101). A feed inlet (102) is fixedly installed on the top of the funnel body (101). A bottle stopper (103) is snapped into the inner cavity of the feed inlet (102). A hollow tube (104) is fixedly installed on the bottom of the funnel body (101). A discharge port (105) is fixedly installed at the middle end of the bottom of the hollow tube (104). The discharge port (105), the hollow tube (104) and the inner cavity of the funnel body (101) are all interconnected. A constant pressure tube (106) is connected to the rear side of the funnel body (101). The other end of the constant pressure tube (106) is interconnected with the inner cavity of the discharge port (105). The adjustment assembly (2) includes a housing (201), which is fixedly installed on the right side of the hollow tube (104). A knob (202) is movably connected to the front side of the housing (201), and a screw (203) is fixedly connected to the rear side of the knob (202). A screw block (204) is threaded onto the surface of the screw (203). A slide rod (205) is fixedly installed on the rear side of the inner cavity of the housing (201), and a slider (206) is slidably connected to the surface of the slide rod (205). The left side of both the slide rod (205) and the slider (206) is movably connected to a movable rod (209). The other end of the two movable rods (209) is movably connected to a moving block (210). The left side of the moving block (210) is fixedly installed with an installation rod (211). The left side of the installation rod (211) is fixedly installed with an adjustment block (212). The surface of the adjustment block (212) is provided with through holes (213). The size of the inner cavity of the three through holes (213) increases from left to right.

2. A constant pressure dropping funnel as claimed in claim 1, characterized in that The right side of both the screw block (204) and the slider (206) is movably connected to a connecting plate (207), and the other end of the two connecting plates (207) is movably connected to an adjusting plate (208), which is movably connected to the right side of the inner cavity of the box (201).

3. A constant pressure dropping funnel as claimed in claim 1, characterized in that A slot (214) is provided on the left side of the surface of the box (201), and the mounting rod (211) passes through the inner cavity of the slot (214) and extends into the inner cavity of the hollow tube (104).

4. A constant pressure dropping funnel as claimed in claim 1, characterized in that The upper and lower sides of the surface of the box (201) are provided with moving grooves (215), and the upper and lower sides of the moving block (210) are slidably connected to the inner cavities of the two moving grooves (215).

5. A constant pressure dropping funnel as claimed in claim 1, characterized in that A guide rod (216) is fixedly installed on the rear side of the inner cavity of the box (201), and the slider (206) is slidably connected to the surface of the guide rod (216).

6. A constant pressure dropping funnel as claimed in claim 1, characterized in that A limiting rod (217) is fixedly installed on the front side of the inner cavity of the box (201), and the screw block (204) is slidably connected to the surface of the limiting rod (217).

7. A constant pressure dropping funnel as defined in claim 1, characterized in that A first sealing gasket (218) is fixedly installed on the left side of the inner cavity of the box (201), and the inner side of the first sealing gasket (218) is attached to the surface of the mounting rod (211).

8. A constant pressure dropping funnel as defined in claim 1, characterized in that A second sealing gasket (219) is fixedly installed in the inner cavity of the hollow tube (104), and the second sealing gasket (219) is attached to the surface of the adjusting block (212).

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