A jet-type air ejector

Abstract

This application provides a jet-type air ejector, relating to the field of air ejectors. The jet-type air ejector includes an air ejector body, which comprises a flange-connected mixing chamber and a throat. A connecting seat is fixedly installed at the bottom of the mixing chamber, and a main support seat is provided at the bottom of the connecting seat. Multiple sets of support sub-seats for supporting the throat are provided on one side of the main support seat. A spacing adjustment mechanism is provided between the multiple sets of support sub-seats. The main support seat includes a first movable seat and multiple sets of electrically operated telescopic rods for providing different height adjustments to the mixing chamber. This jet-type air ejector allows for stepless adjustment of the overall height of the mixing chamber via the electrically operated telescopic rods of the main support seat. Combined with the sleeve-type support columns of the support sub-seats, independent height fine-tuning of each support point of the throat can be performed, solving the problems of low efficiency and poor accuracy of traditional shim leveling, and ensuring precise alignment of the mixing chamber and the throat axis.

Description

Technical Field

[0001] This application relates to the field of air ejector technology, specifically a jet-type air ejector. Background Technology

[0002] As a highly efficient gas delivery and compression device, the core structure of the jet pump generally includes a mixing chamber and a throat. By introducing the working medium (usually steam or high-pressure water) into the mixing chamber through the nozzle to form a high-speed jet, negative pressure is generated at the throat to achieve gas suction. It is widely used in vacuum systems in the fields of power, chemical, and pharmaceutical industries.

[0003] A search revealed that CN212056602U discloses a novel integrated water jet air pump. This pump uses a pointed pile connection, facilitating installation in soft soil. A first arc-shaped component supports the lower end of the pipe, while a second arc-shaped component supports the lower end of the first connector, ensuring the lower ends of the pump are aligned and reducing the probability of pressure damage to the pipe. The elasticity of the spring ensures that the first and second rubber pads are tightly fitted to the inside of the connector, preventing leakage.

[0004] While the existing technology can provide support for the installation and use of jet-type air ejectors, in actual use, the installation height of the mixing chamber and the throat tube needs to be precisely matched with the piping system. However, existing jet-type air ejectors lack vertical adjustment capability during installation and use, and manual adjustment relying on shims is inefficient and inaccurate. Furthermore, multi-throat series or long throat tube structures require multi-point support. Existing technologies cannot flexibly adjust the spacing between support points according to the throat tube length, thus limiting their versatility. Therefore, a jet-type air ejector is provided. Summary of the Invention

[0005] Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this application provides a jet-type air ejector that solves the problems mentioned in the background section.

[0007] Technical solution

[0008] To achieve the above objectives, this application provides the following technical solution: a jet-type air ejector, comprising an air ejector body, the air ejector body including a mixing chamber and a throat pipe connected by a flange, a connecting seat fixedly installed at the bottom of the mixing chamber, a main support seat provided at the bottom of the connecting seat, a plurality of supporting sub-seats for supporting the throat pipe provided on one side of the main support seat, a spacing adjustment mechanism provided between the plurality of supporting sub-seats, the main support seat including a first movable seat and a plurality of electric telescopic rods for providing different height support adjustment for the mixing chamber, and the supporting sub-seats including a second movable seat, a support column for providing different height support adjustment for the throat pipe, and an arc-shaped support block.

[0009] By adopting the above technical solution, the height of the mixing chamber can be adjusted by the extension and retraction of the electric telescopic rod, and the arc-shaped support block can be supported at different heights by the support column, thereby providing stable support for the throat tube at different heights. Furthermore, the spacing between multiple sets of support seats can be adjusted by the spacing adjustment mechanism.

[0010] Preferably, the top of the first movable seat has a mounting cavity, and multiple sets of damping spring shock absorbers are arranged equidistantly inside the mounting cavity. The top of the multiple sets of damping spring shock absorbers is provided with a mounting plate, and the mounting plate is fixedly connected to the bottom of the multiple sets of electric telescopic rods. The telescopic ends of the multiple sets of electric telescopic rods are fixedly installed with connecting plates that are bolted to the connecting seat.

[0011] By adopting the above technical solution, the vibration of the mixing chamber can be absorbed through the combined use of multiple sets of damping spring shock absorbers.

[0012] Preferably, the support column includes a sleeve seat and a support rod that are sleeved together. The sleeve seat is fixedly installed on the upper surface of the second movable seat. The support rod is fixedly connected to the arc-shaped support block. The top of the sleeve seat is threaded with a locking bolt for providing abutment and limiting of the support rod. The inner wall of the arc-shaped support block is adhered with a damping pad.

[0013] By adopting the above technical solution, the working height of the support column can be adjusted by loosening or loosening the locking bolts and by pulling the support rod. Furthermore, the damping pads on the inner wall of the arc-shaped support block can be bonded to buffer the local vibration and impact of the throat.

[0014] Preferably, the spacing adjustment mechanism includes multiple sets of splicing rods and a threaded sleeve fixedly installed on one side of the support base. One end of the splicing rod is provided with a threaded hole, and the other end of the splicing rod is provided with a threaded shaft that is threadedly connected to the threaded hole and the threaded sleeve.

[0015] By adopting the above technical solution, multiple sets of splicing rods can be spliced ​​and combined through the threaded connection between the threaded shaft and the threaded hole. Furthermore, the splicing rod can be connected to one side of the support base through the threaded connection between the threaded shaft at one end of the splicing rod and the threaded sleeve.

[0016] Preferably, the spacing adjustment mechanism further includes a sealing end cap that is threadedly connected to the threaded hole, the splicing rod passes through the through holes on the side walls of multiple sets of second movable seats, multiple sets of limiting hole slots are equally spaced inside the splicing rod, and limiting bolts are threadedly connected to the top of multiple sets of second movable seats, with one threaded end of the limiting bolt engaging with the multiple sets of limiting hole slots.

[0017] By adopting the above technical solution, multiple sets of support seats can be fixed on the splicing rod by passing through the support sub-seat and then tightening the upper limit bolt of the support sub-seat (i.e., the threaded end of the limit bolt is inserted into the internal limit hole groove of the splicing rod for positioning).

[0018] Preferably, a liquid inlet is connected to a flange on one side of the mixing chamber, a nozzle is fixedly installed on the liquid inlet near one end of the mixing chamber, and an air inlet is connected through the top of the mixing chamber.

[0019] By adopting the above technical solution, the working medium can be sent into the mixing chamber through the liquid inlet interface, and gas can be drawn in through the air inlet interface.

[0020] Preferably, both the first and second movable seats are fixedly equipped with movable wheels at their bottom ends. Two sets of limiting mechanisms are symmetrically arranged on both sides of the main support seat. Each limiting mechanism includes a ground plate and a connecting plate fixedly installed on the outside of the first movable seat. Two sets of guide rods are fixedly installed on both sides of the ground plate, and the two sets of guide rods pass through the ground plate upwards.

[0021] By adopting the above technical solution, multiple sets of moving wheels can be used to assist in the transfer and movement of the device.

[0022] Preferably, a threaded rod is rotatably connected at the center of the upper surface of the connecting plate, and the threaded rod is threadedly connected to the center of the connecting plate.

[0023] By adopting the above technical solution, the grounding plate can be raised and lowered under the limit of the guide rod by rotating the threaded rod, and when the grounding plate touches the ground, it can provide effective limit for the placement and use of the support base.

[0024] Beneficial effects

[0025] This application provides a jet-type ejector. It has the following beneficial effects:

[0026] 1. This jet-type air ejector can achieve stepless adjustment of the overall height of the mixing chamber through the electric telescopic rod supporting the main seat. Combined with the sleeve-type support column of the supporting sub-seat, the height of each support point of the throat tube can be independently fine-tuned, solving the problems of low efficiency and poor accuracy of traditional shim leveling, and ensuring that the mixing chamber and the throat tube axis are accurately aligned.

[0027] 2. This jet-type air ejector, through the setting of the spacing adjustment mechanism, that is, by locking the position through the limiting hole groove of the splicing rod and the limiting bolt, and by using the screw connection of the threaded shaft and the threaded sleeve, can realize the continuous adjustment of the spacing of multiple sets of support seats, thereby adapting to the support requirements of different length throats or multiple throats in series layout, and further improving the applicability of the device in use. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall external structure of this application;

[0030] Figure 2 This is a schematic diagram of the rear view of the external structure of this application;

[0031] Figure 3 This is a half-section schematic diagram of the external structure of the ejector body and the support base in this application when they are connected.

[0032] Figure 4 This is a schematic diagram of the external structure of the support seat and the spacing adjustment mechanism in this application;

[0033] Figure 5 For the purposes of this application Figure 2 Enlarged structural diagram at point A in the middle.

[0034] In the diagram: 1. Evacuator body; 101. Mixing chamber; 102. Throat; 103. Liquid inlet; 104. Air inlet; 110. Connecting seat; 2. Main support seat; 201. First movable seat; 202. Mounting chamber; 203. Damping spring shock absorber; 204. Mounting plate; 210. Electric telescopic rod; 211. Connecting plate; 3. Support sub-seat; 301. Second movable seat; 310. Support column; 311. Sleeve 312. Support rod; 313. Locking bolt; 320. Arc-shaped support block; 321. Damping pad block; 4. Spacing adjustment mechanism; 401. Threaded sleeve; 410. Splicing rod; 411. Limiting hole groove; 412. Threaded hole; 413. Threaded shaft; 420. Limiting bolt; 430. Sealing end cap; 5. Limiting mechanism; 501. Connecting plate; 510. Grounding plate; 511. Guide rod; 512. Threaded rod. Detailed Implementation

[0035] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] Reference Figures 1 to 5 This application provides a jet-type air ejector, including an air ejector body 1. The air ejector body 1 includes a mixing chamber 101 and a throat 102 connected by a flange. A connecting seat 110 is fixedly installed at the bottom of the mixing chamber 101. A main support 2 is provided at the bottom of the connecting seat 110. Multiple sets of supporting sub-seats 3 for supporting the throat 102 are provided on one side of the main support 2. A spacing adjustment mechanism 4 is provided between the multiple sets of supporting sub-seats 3. The main support 2 includes a first movable seat 201 and multiple sets of electric telescopic rods 210 for providing different height support adjustment for the mixing chamber 101. The supporting sub-seats 3 include a second movable seat. 301. The support column 310 and the arc-shaped support block 320 are used to provide different height support for the throat tube 102. The electric telescopic rod 210 can be used to support the mixing chamber 101 at different heights to achieve the overall height adjustment of the mixing chamber 101. The support column 310 can also support the arc-shaped support block 320 at different heights. In addition, multiple sets of support seats 3 can provide different height stable support for the throat tube 102, so that the height support of each support point of the throat tube 102 can be adjusted independently to ensure that the axis of the mixing chamber 101 and the throat tube 102 are accurately aligned.

[0037] Reference Figure 1 , Figure 3 and Figure 4In one aspect of this embodiment, the top of the first movable seat 201 is provided with a mounting cavity 202, and multiple sets of damping spring shock absorbers 203 are arranged equidistantly inside the mounting cavity 202. The top of the multiple sets of damping spring shock absorbers 203 is provided with a mounting plate 204, and the mounting plate 204 is fixedly connected to the bottom of multiple sets of electric telescopic rods 210. The telescopic ends of the multiple sets of electric telescopic rods 210 are fixedly installed with connecting plates 211 that are bolted to the connecting seat 110.

[0038] The support column 310 includes a sleeve seat 311 and a support rod 312 that are sleeved together. The sleeve seat 311 is fixedly installed on the upper surface of the second movable seat 301. The support rod 312 is fixedly connected to the arc-shaped support block 320. The top of the sleeve seat 311 is threaded with a locking bolt 313 for providing abutment and limiting of the support rod 312. The inner wall of the arc-shaped support block 320 is bonded with a damping pad 321. When the device is in use, the mixing chamber 101 can be fixedly installed on the top of the main support seat 2 by bolting the connecting plate 211 to the connecting seat 110. Furthermore, by adjusting the tightness of the locking bolt 313 and pulling the support rod 312, the working height of the support column 310 can be adjusted (so that the arc support block 320 can provide independent height support for each support point of the throat tube 102). With the setting of multiple sets of damping spring shock absorbers 203, the vibration of the mixing chamber 101 can be absorbed during the operation of the air extractor body 1. In addition, with the bonding of the damping pad 321 on the inner wall of the arc support block 320, the local vibration impact of the throat tube 102 can be buffered, thereby achieving dual-stage synergistic shock absorption.

[0039] Reference Figure 2 , Figure 3 and Figure 4 In one aspect of this embodiment, the spacing adjustment mechanism 4 includes multiple sets of splicing rods 410 and a threaded sleeve 401 fixedly installed on one side of the support main seat 2. One end of the splicing rod 410 is provided with a threaded hole 412, and the other end of the splicing rod 410 is provided with a threaded shaft 413 that is threadedly connected to the threaded hole 412 and the threaded sleeve 401.

[0040] The spacing adjustment mechanism 4 also includes a sealing end cap 430 threadedly connected to the threaded hole 412. The splicing rod 410 passes through through holes on the side walls of multiple sets of second movable seats 301. Multiple sets of limiting slots 411 are equally spaced inside the splicing rod 410. Limiting bolts 420 are threadedly connected to the top of the multiple sets of second movable seats 301. One threaded end of the limiting bolt 420 engages with the multiple sets of limiting slots 411. When this device is in use, the splicing rod 410 can be connected to one side of the support main seat 2 through the threaded connection between the threaded shaft 413 at one end of the splicing rod 410 and the threaded connection between the threaded shaft 413 and the threaded hole 412. The system allows for the splicing of multiple sets of splicing rods 410. The splicing length of the splicing rod 410 can be selected based on the length of the throat 102 or the support requirements of multiple throats 102 connected in series. During this process, multiple sets of support seats 3 are connected in series by the splicing rod 410, and then tightened with the upper limit bolt 420 of the support seat 3 (so that one threaded end of the limit bolt 420 is inserted into the internal limit hole groove 411 of the splicing rod 410). The multiple sets of support seats 3 can be adjusted and fixed with different lateral spacing on the splicing rod 410, thereby adapting to the support requirements of throats 102 of different lengths or multiple throats 102 connected in series.

[0041] Reference Figures 1 to 3 In one aspect of this embodiment, a liquid inlet 103 is connected to a flange on one side of the mixing chamber 101. A nozzle is fixedly installed on one end of the liquid inlet 103 near the mixing chamber 101. An air inlet 104 is connected through the top of the mixing chamber 101. When the device is in use, the working medium can be sent into the mixing chamber 101 by connecting the liquid inlet 103 to the flange of the liquid inlet pipe or the pump body. The gas can be pumped through the air inlet 104 by connecting the air inlet 104 to the flange of the air inlet pipe. During this process, after the working medium enters the liquid inlet 103, it enters the mixing chamber 101 under the action of the nozzle to form a high-speed jet and generates a negative pressure at the throat 102 to achieve the pumping operation of the gas introduced by the air inlet 104.

[0042] Reference Figure 1 , Figure 2 and Figure 5 In one aspect of this embodiment, both the bottom ends of the first movable seat 201 and the second movable seat 301 are fixedly installed with movable wheels. Two sets of limiting mechanisms 5 are symmetrically arranged on both sides of the main support seat 2. The limiting mechanism 5 includes a ground plate 510 and a connecting plate 501 fixedly installed on the outside of the first movable seat 201. Two sets of guide rods 511 are fixedly installed on both sides of the ground plate 510, and the two sets of guide rods 511 pass through the ground plate 510 upward.

[0043] A threaded rod 512 is rotatably connected to the center of the upper surface of the grounding plate 510. The threaded rod 512 is threadedly connected to the center of the connecting plate 501. When this device is in use, the multiple sets of moving wheels can assist the device in transportation and movement. In the use of the device, rotating the threaded rod 512 can drive the grounding plate 510 to move downward under the action of the two sets of guide rods 511, thereby providing a limit to the device by the grounding plate 510 contacting the ground.

[0044] All electrical devices in this plan are powered by an external power source.

[0045] Working Principle: When using this jet-type air ejector, the device should first be moved to the desired position using the multiple sets of casters at the bottom of the main support 2 and the supporting sub-support 3. Then, by rotating the threaded rod 512 in the limiting mechanism 5, the grounding plate 510 is driven to contact the ground and provide a limiting position for the device. The ejector body 1 is then connected to the external pipeline via flanges (i.e., the liquid inlet 103 is connected to the liquid inlet pipe or pump body flange, the air inlet 104 is connected to the air inlet pipe flange, and the mixing chamber 101 is connected to the throat 102 or multiple throats 102 in series flange). This completes the pre-assembly of the device before use. During this process, the electric telescopic rod 210 in the main support 2 can extend and retract to support the mixing chamber 101 at different heights, thus adjusting the overall height of the mixing chamber 101. Furthermore, the support column 310 allows for different height support of the arc-shaped support block 320 (i.e., by adjusting the tightness of the locking bolt 313 and pulling the support rod 312, the height of the support column 310 can be adjusted), thereby enabling independent height adjustment of each support point of the throat 102 to ensure precise alignment between the mixing chamber 101 and the axis of the throat 102. Simultaneously, the multiple sets of support seats 3 with a spacing adjustment mechanism 4 (i.e., by locking the position of the splicing rod 410 with the internal limiting hole groove 411 and the limiting bolt 420, and by using the screw connection of the threaded shaft 413 with the threaded hole 412 and the threaded sleeve 401, the spacing of multiple sets of support seats 3 can be continuously adjusted) can adapt to the support requirements of throats 102 of different lengths or multiple throats 102 in series.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jet-type air ejector, comprising an air ejector body (1), the air ejector body (1) including a flange-connected mixing chamber (101) and a throat (102), wherein a connecting seat (110) is fixedly installed at the bottom of the mixing chamber (101), characterized in that: The bottom of the connecting seat (110) is provided with a main support seat (2). On one side of the main support seat (2), there are multiple sets of supporting sub-seats (3) for supporting the throat tube (102). A spacing adjustment mechanism (4) is provided between the multiple sets of supporting sub-seats (3). The main support seat (2) includes a first movable seat (201) and multiple sets of electric telescopic rods (210) for providing different height support adjustment for the mixing chamber (101). The supporting sub-seats (3) include a second movable seat (301), a support column (310) for providing different height support adjustment for the throat tube (102), and an arc-shaped support block (320).

2. The jet-type air ejector according to claim 1, characterized in that: The first movable seat (201) has a mounting cavity (202) at the top. Multiple sets of damping spring shock absorbers (203) are arranged equidistantly inside the mounting cavity (202). A mounting plate (204) is provided on the top of the multiple sets of damping spring shock absorbers (203). The mounting plate (204) is fixedly connected to the bottom of multiple sets of electric telescopic rods (210). The telescopic ends of the multiple sets of electric telescopic rods (210) are fixedly installed with connecting plates (211) that are bolted to the connecting seat (110).

3. The jet-type air ejector according to claim 2, characterized in that: The support column (310) includes a sleeve seat (311) and a support rod (312) that are sleeved together. The sleeve seat (311) is fixedly installed on the upper surface of the second movable seat (301). The support rod (312) is fixedly connected to the arc-shaped support block (320). The top of the sleeve seat (311) is threaded with a locking bolt (313) for providing abutment limit for the support rod (312). The inner wall of the arc-shaped support block (320) is bonded with a damping pad (321).

4. A jet-type air ejector according to claim 1, characterized in that: The spacing adjustment mechanism (4) includes multiple sets of splicing rods (410) and a threaded sleeve (401) fixedly installed on one side of the support main seat (2). One end of the splicing rod (410) is provided with a threaded hole (412), and the other end of the splicing rod (410) is provided with a threaded shaft (413) that is threadedly connected to the threaded hole (412) and the threaded sleeve (401).

5. A jet-type air ejector according to claim 4, characterized in that: The spacing adjustment mechanism (4) also includes a sealing end cap (430) that is threadedly connected to the threaded hole (412). The splicing rod (410) passes through the through holes on the side wall of multiple sets of second moving seats (301). Multiple sets of limiting hole slots (411) are equally spaced inside the splicing rod (410). The top of the multiple sets of second moving seats (301) is threadedly connected to a limiting bolt (420). One threaded end of the limiting bolt (420) engages with the multiple sets of limiting hole slots (411).

6. A jet-type air ejector according to claim 1, characterized in that: The mixing chamber (101) has a flange connected to a liquid inlet (103) on one side. A nozzle is fixedly installed on one end of the liquid inlet (103) near the mixing chamber (101). An air inlet (104) is connected through the top of the mixing chamber (101).

7. A jet-type air ejector according to claim 1, characterized in that: The first movable seat (201) and the second movable seat (301) are both fixedly installed with movable wheels at their bottom ends. Two sets of limiting mechanisms (5) are symmetrically arranged on both sides of the main support seat (2). The limiting mechanism (5) includes a ground plate (510) and a connecting plate (501) fixedly installed on the outside of the first movable seat (201). Two sets of guide rods (511) are fixedly installed on both sides of the ground plate (510). The two sets of guide rods (511) pass through the ground plate (510) upward.

8. A jet-type air ejector according to claim 7, characterized in that: A threaded rod (512) is rotatably connected at the center of the upper surface of the ground plate (510), and the threaded rod (512) is threadedly connected to the center of the connecting plate (501).

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