Windproof hammer exhaust tube structure for vacuum measuring bin

Abstract

The utility model discloses a windproof hammer exhaust tube structure for a vacuum metering bin, and particularly relates to the technical field of vacuum metering bins, the windproof hammer exhaust tube structure comprises a windproof hammer structure and a vacuum metering bin, the top of the vacuum metering bin is provided with a bin cover, and the top of the bin cover is provided with an exhaust opening; the wind hammer preventing structure is arranged on the air suction opening and comprises an air suction pipe, the bottom of the air suction pipe is provided with a connecting pipe connected with the air suction opening, one end of the air suction pipe is provided with a pneumatic ball valve, and the other end of the air suction pipe is connected with a fan outside the vacuum metering bin; by arranging the wind hammer preventing structure on the vacuum measuring bin, the problem of wind hammer effect in the material conveying pipeline can be effectively solved, airflow in the material conveying pipeline can be prevented from reversely rushing back to the raw material bin, the material spraying phenomenon at the position of an air opening of the raw material bin is prevented, raw material waste and dust pollution can be avoided, and quantitative suction of raw materials is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum metering bins, and particularly relates to a wind-proof hammer exhaust pipe structure for a vacuum metering bin. Background Art

[0002] The vacuum metering bin sucks the raw materials in the bin into the vacuum metering bin through the negative pressure of the air pump for dynamic metering and weighing. When the required raw materials reach the metering value, the feed ball valve will immediately close to stop sucking materials, so as to facilitate quantitative material taking.

[0003] However, during the use of the vacuum metering bin, when the raw materials reach the metering value and the feed ball valve closes, a wind hammer effect will be formed in the conveying pipeline, causing the air flow in the pipeline to flow back reversely into the raw material bin, resulting in spraying of materials at the air outlet position of the raw material bin, causing waste of raw materials and dust pollution, and being unfavorable for quantitative suction of raw materials. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wind-proof hammer exhaust pipe structure for a vacuum metering bin to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A wind-proof hammer exhaust pipe structure for a vacuum metering bin, including a wind-proof hammer structure and a vacuum metering bin. A bin cover is arranged on the top of the vacuum metering bin, and an exhaust port is provided on the top of the bin cover;

[0006] The wind-proof hammer structure is arranged on the exhaust port, and the wind-proof hammer structure includes an exhaust pipe. A connecting pipe connected to the exhaust port is arranged at the bottom of the exhaust pipe, and a pneumatic ball valve is installed at one end of the exhaust pipe, and the other end is connected to a blower outside the vacuum metering bin.

[0007] Preferably, a quick installation structure is arranged between the connecting pipe and the exhaust port. The quick installation structure includes a first chuck rotatably connected to the bottom end of the connecting pipe and a second chuck installed on the exhaust port. A plurality of insertion blocks are installed at the bottom end of the first chuck, a slot for inserting the plurality of insertion blocks is opened on the second chuck, and a limiting member for limiting the insertion blocks is further arranged on the second chuck.

[0008] Preferably, the limiting member includes a cavity opened inside the second chuck. A horizontal bar that can move horizontally is arranged in the cavity. A horizontal bar slot for inserting the horizontal bar is further opened inside the second chuck. A through hole for the horizontal bar to pass through is provided in the middle of the insertion block, and the insertion block and the horizontal bar are distributed in a cross shape.

[0009] Preferably, the limiting member further includes a return spring fixed to the inner wall of the cavity. The free end of the return spring is connected to a connecting plate, and a pull rod is fixed to one side of the connecting plate. The return spring is sleeved outside the pull rod, and the cross bar is fixed to one side of the connecting plate.

[0010] Preferably, one end of the pull rod extends to the outside of the second chuck and is provided with a handle.

[0011] Preferably, both the insertion block and one side of the cross bar are obliquely cut to form inclined portions.

[0012] Preferably, positioning protrusions are installed on the inner wall of the insertion slot, and a positioning groove matching with the positioning protrusions is formed on one side of the insertion block.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0014] 1. By providing a wind-proof hammer structure on the vacuum metering bin, during the process of sucking raw materials from the silo into the vacuum metering bin, when the required weight is about to be reached, the pneumatic ball valve will open, stopping the suction from the inside of the vacuum metering bin, so that the air flow pressure in the feeding pipeline on the vacuum metering bin disappears. At this time, the feeding ball valve on the vacuum metering bin is closed, thus effectively solving the problem of the wind hammer effect in the feeding pipeline, avoiding the reverse flow of the air flow in the feeding pipeline back to the raw material bin, preventing the spraying phenomenon at the air inlet position of the raw material bin, and further avoiding raw material waste and dust pollution, which is beneficial to the quantitative suction of raw materials.

[0015] 2. Through the setting of the quick-installation structure, the quick disassembly and assembly of the wind-proof hammer structure can be realized, which is convenient for the installation and use of the wind-proof hammer structure, and the wind-proof hammer structure can be rotated 360°, so as to connect the fan outside the vacuum metering bin, improving the convenience during the installation of the wind-proof hammer structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the wind-proof hammer structure of the present utility model;

[0019] Figure 3 For the present utility model Figure 2 Rear view;

[0020] Figure 4 The sectional view when the first chuck and the second chuck of the present utility model are connected;

[0021] Figure 5 For the present utility model Figure 4 The enlarged view of part A in it.

[0022] Explanation of reference numerals:

[0023] 1. Vacuum metering bin; 2. Bin cover; 3. Wind-proof hammer structure; 31. Exhaust pipe; 32. Pneumatic ball valve; 33. Connecting pipe; 4. Quick-installation structure; 41. First chuck; 42. Insert block; 43. Second chuck; 44. Cross bar; 45. Pull rod; 46. Return spring; 47. Cavity; 48. Positioning convex block; 49. Cross bar groove; 410. Slot. Specific implementation manners

[0024] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0025] The present utility model provides a wind-proof hammer exhaust pipe structure for a vacuum metering bin as Figures 1 - 5 shown, which includes a wind-proof hammer structure 3 and a vacuum metering bin 1. A bin cover 2 is provided at the top of the vacuum metering bin 1, and an exhaust port is provided at the top of the bin cover 2;

[0026] The wind-proof hammer structure 3 is arranged on the exhaust port, and the wind-proof hammer structure 3 includes an exhaust pipe 31. A connecting pipe 33 connected to the exhaust port is provided at the bottom of the exhaust pipe 31, and a pneumatic ball valve 32 is installed at one end of the exhaust pipe 31, and the other end is connected to a blower outside the vacuum metering bin 1.

[0027] During use, the exhaust pipe 31 is connected to the exhaust port on the bin cover 2 through the connecting pipe 33, and one end of the exhaust pipe 31 is connected to an external blower. Subsequently, during the process of sucking the raw materials in the bin into the vacuum metering bin 1, when the required weight is about to be reached, the pneumatic ball valve 32 will open, stopping the suction from the inside of the vacuum metering bin 1, so that the air flow pressure in the feeding pipeline on the vacuum metering bin 1 disappears. At this time, the feeding ball valve on the vacuum metering bin 1 is closed, thus effectively solving the problem of the wind hammer effect in the feeding pipeline, facilitating the normal use of the vacuum metering bin 1.

[0028] At the same time, in this embodiment, as Figures 1 - 5 shown, a quick-installation structure 4 is provided between the connecting pipe 33 and the exhaust port, and the quick-installation structure 4 includes a first chuck 41 rotatably connected to the bottom end of the connecting pipe 33 and a second chuck 43 installed on the exhaust port. A plurality of insert blocks 42 are installed at the bottom end of the first chuck 41, a slot 410 for inserting the plurality of insert blocks 42 is provided on the second chuck 43, and a limiting member for limiting the insert blocks 42 is further provided on the second chuck 43.

[0029] Specifically, regarding the above-mentioned limiting member, it includes a cavity 47 opened inside the second chuck 43. A horizontal rod 44 that can move horizontally is arranged in the cavity 47. A horizontal rod slot 49 for inserting the horizontal rod 44 is also opened inside the second chuck 43. A through hole for the horizontal rod 44 to pass through is provided in the middle of the insertion block 42.

[0030] Furthermore, the limiting member further includes a return spring 46 fixed to the inner wall of the cavity 47. The free end of the return spring 46 is connected to a connecting plate, and a pull rod 45 is fixed to one side of the connecting plate. The return spring 46 is sleeved outside the pull rod 45, and the horizontal rod 44 is fixed to one side of the connecting plate.

[0031] When installing the windproof hammer structure 3, the first chuck 41 can be docked on the second chuck 43. At this time, the insertion block 42 is inserted into the slot 410. Then, the pull rod 45 is pulled, so that the pull rod 45 drives the connecting plate to move, and the return spring 46 is compressed and contracted, so as to drive the horizontal rod 44 to move into the cavity 47 from the horizontal rod slot 49. Then, the insertion block 42 is completely inserted downward into the slot 410. At this time, the pull rod 45 is released, and the return spring 46 pushes the horizontal rod 44 through the connecting plate until it passes through the insertion block 42 and is inserted into the horizontal rod slot 49, so as to limit the insertion block 42, thereby realizing the rapid installation of the windproof hammer structure 3. Moreover, the first chuck 41 and the connecting pipe 33 are rotatably connected, and the windproof hammer structure 3 can rotate 360°, so as to be convenient for connecting the fan outside the vacuum metering bin 1, improving the convenience during the installation of the windproof hammer structure 3.

[0032] Furthermore, for the convenience of pulling the pull rod 45, as Figure 4 and Figure 5 shown, one end of the pull rod 45 extends to the outside of the second chuck 43 and is provided with a handle.

[0033] Furthermore, for the convenience of the cooperation between the insertion block 42 and the horizontal rod 44, as Figure 5 shown, both the insertion block 42 and one side of the horizontal rod 44 are obliquely cut to form inclined portions.

[0034] In addition, in an embodiment, as Figure 5 shown, a positioning convex block 48 is installed on the inner wall of the slot 410, and a positioning groove matching with the positioning convex block 48 is opened on one side of the insertion block 42. Specifically, the positioning convex block 48 can be made of a material with a certain flexibility such as rubber. When the insertion block 42 is inserted into the slot 410, the insertion block 42 will squeeze the positioning convex block 48 to deform until the positioning convex block 48 is completely inserted. At this time, the positioning convex block 48 corresponds to the positioning groove, loses the extrusion, and the positioning convex block 48 returns to its original state, so as to be stuck into the positioning groove, thereby limiting the insertion block 42 and realizing the rapid positioning when the first chuck 41 and the second chuck 43 are connected, and further facilitating the quick installation of the windproof hammer structure 3.

[0035] Only some exemplary embodiments of the present utility model have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A wind-proof hammer exhaust duct structure for a vacuum metering bin, characterized in that: It includes a wind-proof hammer structure (3) and a vacuum metering bin (1). A bin cover (2) is provided at the top of the vacuum metering bin (1), and an air extraction port is provided at the top of the bin cover (2). The wind-proof hammer structure (3) is arranged on the air extraction port. The wind-proof hammer structure (3) includes an air extraction pipe (31). A connecting pipe (33) connected to the air extraction port is provided at the bottom of the air extraction pipe (31). A pneumatic ball valve (32) is installed at one end of the air extraction pipe (31), and the other end is connected to a fan outside the vacuum metering bin (1).

2. The air extraction pipe structure of the windproof hammer for a vacuum metering bin according to claim 1, wherein: A quick-installation structure (4) is provided between the connecting pipe (33) and the air extraction port. The quick-installation structure (4) includes a first chuck (41) rotatably connected to the bottom end of the connecting pipe (33) and a second chuck (43) installed on the air extraction port. A plurality of insertion blocks (42) are installed at the bottom end of the first chuck (41). A slot (410) for inserting the plurality of insertion blocks (42) is formed on the second chuck (43), and a limiting member for limiting the insertion blocks (42) is further provided on the second chuck (43).

3. The wind-proof hammer exhaust pipe structure for a vacuum metering bin according to claim 2, characterized in that: The limiting member includes a cavity (47) formed inside the second chuck (43). A horizontally movable cross bar (44) is arranged inside the cavity (47). A cross bar slot (49) for inserting the cross bar (44) is further formed inside the second chuck (43). A through hole for the cross bar (44) to pass through is provided in the middle of the insertion block (42).

4. A windproof hammer exhaust duct structure for a vacuum metering bin according to claim 3, characterized in that: The limiting member further includes a return spring (46) fixed to the inner wall of the cavity (47). A connecting plate is connected to the free end of the return spring (46). A pull rod (45) is fixed to one side of the connecting plate. The return spring (46) is sleeved outside the pull rod (45). The cross bar (44) is fixed to one side of the connecting plate.

5. The wind-proof hammer extraction air pipe structure for a vacuum metering bin according to claim 4, characterized in that: One end of the pull rod (45) extends to the outside of the second chuck (43) and is provided with a handle.

6. The windproof hammer extraction air duct structure for a vacuum metering bin according to claim 3, characterized in that: One side of both the insertion block (42) and the cross bar (44) is obliquely cut to form an inclined portion.

7. The wind-proof hammer exhaust duct structure for a vacuum metering bin according to claim 2, characterized in that: A positioning convex block (48) is installed on the inner wall of the slot (410). A positioning groove matched with the positioning convex block (48) is formed on one side of the insertion block (42).

Images