Mounting structure of a jet pump driver

Abstract

The application provides a mounting structure of a jet pump driver and belongs to the technical field of fluid power pumps. The mounting structure of the jet pump driver solves the problem of inconvenient mounting of the driver. In the mounting structure of the jet pump driver, the jet pump comprises a pump shell, the driver comprises a carrier plate and a cover, a cover shell is arranged on the carrier plate, the outer wall of the open end of the cover shell abuts against the outer wall of the pump shell, a plurality of clamping plates one are arranged on the outer wall of the pump shell, each two adjacent clamping plates one have a slot therebetween, the carrier plate is provided with a clamping plate two which can be inserted into the slot, a screw rod is arranged on the cover shell and is screwed with the carrier plate, when the screw rod is rotated to be locked, the screw rod can drive the carrier plate to ascend so that the clamping plate one abuts against the clamping plate two. The mounting structure of the jet pump driver can ensure the stability of the assembly of the carrier plate and the pump shell on the pump shell, and can also ensure the convenience of disassembly and assembly of the carrier plate and the pump shell on the pump shell on the basis of stable installation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fluid power pumps, and relates to a mounting structure of a jet pump driver. BACKGROUND

[0002] The jet pump, also known as the fluidic pump, is a kind of pump that uses the jetting action of high-pressure working fluid to transport fluid; it is generally composed of a pump shell, a nozzle, a mixing chamber, an expansion pipe and other components; during operation, the working fluid is jetted out of the nozzle at a very high speed, forming a low pressure in the vacuum chamber, so that the transported liquid is sucked into the vacuum chamber and then enters the mixing chamber; in the mixing chamber, the high-energy working fluid and the low-energy transported liquid are fully mixed, so that the energy is exchanged and the speed is gradually consistent; the fluid enters the diffusion chamber from the throat pipe, the speed slows down, the static pressure rises, and the purpose of transporting the liquid is achieved.

[0003] In the prior art, a driver for driving the pump body to work is generally installed outside the pump shell; the driver generally includes a box body formed by the combination of a bottom cover and an outer cover, a circuit board and various electrical elements soldered on the circuit board; the circuit board is fixed in the box body, and the box body is installed outside the pump shell; there are generally two fixing methods for the existing driver and the pump shell; one is that the box body is placed on the outer wall of the pump shell, and the two are fixed by welding in the abutting state; the other is that a plurality of through holes corresponding in position are formed on the pump shell and the box body, and the two are fixed by screwing through fasteners.

[0004] For the former, a plurality of cooling fins are generally arranged on the outer wall of the pump shell; when the bottom cover of the box body abuts against the cooling fins on the outer wall of the pump shell, the contact area cannot be guaranteed, so that the stability of subsequent welding cannot be guaranteed, and when the driver fails and needs to be repaired, the box body cannot be disassembled, which greatly inconveniences the maintenance of the driver; for the latter, in order to meet the opening requirement, since a plurality of cooling fins are generally arranged on the outer wall of the existing pump shell, the pump shell cannot be opened to meet the opening requirement; therefore, the manufacturer needs to pre-set an installation platform on the outer wall of the pump shell, and then tap the installation platform, which increases the forming process steps and processing difficulty of the pump shell and increases the manufacturing cost. SUMMARY

[0005] The present application aims to solve the above problems of the prior art, and provides a mounting structure of a jet pump driver; the technical problem to be solved by the present application is how to guarantee the installation convenience of the driver.

[0006] The objective of this invention can be achieved through the following technical solution: an installation structure for a jet pump driver, wherein the jet pump includes a pump housing, and the driver includes a carrier plate and a cover plate covering the carrier plate, characterized in that the outer wall of the opening end of the cover plate abuts against the outer wall of the pump housing, the outer wall of the pump housing is provided with a plurality of first-position retaining plates, and a slot is provided between every two adjacent first-position retaining plates, the carrier plate is provided with second-position retaining plates that can be inserted into the slots, and a screw rod is installed on the cover plate that is screwed to the carrier plate, wherein when the screw rod rotates to lock, the screw rod can drive the carrier plate to rise so that the first-position retaining plate abuts against the second-position retaining plate.

[0007] In the mounting structure of this jet pump driver, the jet pump includes a pump housing for mounting the pump body, and the driver includes a carrier plate for mounting the circuit board and various electronic components, and a cover on the carrier plate to protect the circuit board and various electronic components. Several locking plates are provided on the outer wall of the pump housing, and locking plates are provided on the carrier plate. A slot is formed between every two adjacent locking plates. During assembly, the user can insert the locking plates into the slots formed between two adjacent locking plates, thereby pre-fixing the carrier plate to the pump housing (preferably, the carrier plate is located above the pump housing). When the cover is placed over the carrier plate, its open end abuts against the outer wall of the pump housing. A screw is installed on the cover, and the screw is threaded to the carrier plate. When the user tightens the screw using a special tool, the screw and the carrier plate... The threaded connection allows the carrier plate to be continuously pulled upwards by the screw during the screwing process. As the carrier plate is continuously pulled upwards, the second clamping plate embedded in the slot can contact and continuously press against the first clamping plate, thus forming a clamping limit between the second clamping plate and the two clamping plates that surround the slot, fixing the carrier plate to the cover through the clamping force. Conversely, as the carrier plate continuously sinks downwards due to its own weight (i.e., when the screw rotates in the opposite direction, the first clamping plate and the second clamping plate loosen), until the screw separates from the carrier plate, the user can pull the second clamping plate out of the slot by pulling it outwards, thus separating the carrier plate from the pump housing. This ensures the stability of the carrier plate and pump housing (driver) assembled on the pump housing, and also makes the disassembly and assembly of the carrier plate and pump housing (driver) from the pump housing convenient while maintaining stable installation.

[0008] In the above-described mounting structure of the jet pump driver, several of the first clamping plates are elongated and spaced circumferentially along the outer wall of the pump housing. One side edge of each first clamping plate is fixedly connected to the outer wall of the pump housing, and the other side edge has a snap-fit ​​portion protruding from both sides of the first clamping plate. The second clamping plate is elongated and has a T-shaped cross-section, and the width of the lower end of the second clamping plate is greater than the gap width between two adjacent snap-fit ​​portions.

[0009] Several card plates are elongated strips, and each card plate is spaced circumferentially along the outer wall of the pump casing, so that each card plate can also serve as a heat sink to dissipate heat from the pump casing. One edge of each card plate is fixed to the outer wall of the pump casing, and the other edge has a snap-fit ​​part that protrudes from the two sides of the card plate. The cross-section of the card plate is T-shaped. When the card plate is inserted into the slot between two adjacent card plates, the gap between the two snap-fit ​​parts is smaller than the width of the lower end of the card plate. This allows the lower end of the card plate to be limited by the snap-fit ​​parts on the two adjacent card plates, so that the carrier plate can only slide into / out of the slot and cannot be directly lifted to remove the carrier plate from the slot. As an alternative, the cross-sectional shape of the card plate can also be L-shaped (or the lower end of the card plate has a limiting part with a size larger than the gap between the two snap-fit ​​parts, and the limiting part can be of any shape).

[0010] In the above-described mounting structure of the jet pump driver, the carrier plate is rectangular, the second clamping plate is elongated, and the second clamping plate is fixedly mounted on the lower end face of the carrier plate near both side edges.

[0011] As a preferred embodiment, the carrier plate can be shaped like a cuboid, and the second clamping plate can be shaped like a strip. The second clamping plate is provided on both sides of the lower end face of the carrier plate near the edge, thereby ensuring the stability of the carrier plate after it is assembled onto the pump casing.

[0012] In the above-mentioned mounting structure of the jet pump driver, threaded holes are provided at the circumferential corners of the carrier plate, and the screw is screwed into the threaded holes.

[0013] Threaded holes are made at the circumferential corners of the carrier board, and the screw is screwed into the threaded holes to avoid interference between the screw and the carrier board and the installation of the circuit board. This ensures the stable installation of the carrier board and provides sufficient space for the installation of the circuit board and various components.

[0014] In the above-described mounting structure of the jet pump driver, guide posts are provided at the inner circumferential corners of the housing along the height direction of the housing, and each guide post has guide holes formed at both ends for the screw to pass through.

[0015] Guide posts are provided at the circumferential corners inside the housing. Each guide post is set along the height direction of the housing, and guide holes are formed at both ends of each guide post. During subsequent assembly, the user can insert the screw into the guide hole of the guide post and guide the screw through the guide hole, thereby ensuring the convenience of inserting the screw into the threaded hole on the carrier plate.

[0016] In the above-described mounting structure of the jet pump driver, several reinforcing ribs are provided between each guide post and the inner wall of the housing.

[0017] Several reinforcing ribs are provided between the outer wall of each guide post and the inner wall of the casing. The reinforcing ribs can enhance the stability of the connection between the guide post and the inner wall of the casing and prevent the guide post from breaking after long-term use.

[0018] In the above-mentioned mounting structure of the jet pump driver, a receiving groove is provided at the circumferential corner of the top outer wall of the cover, and one end of the guide hole penetrates through the bottom wall of the receiving groove.

[0019] A receiving groove is provided at the circumferential corner of the outer wall at the top of the cover. One end of the guide hole penetrates the bottom wall of the receiving groove. When the screw is inserted into the guide hole, it can be embedded in the guide groove, thereby preventing the end of the screw from being exposed and ensuring that the screw will not be hit by foreign objects.

[0020] In the above-described mounting structure of the jet pump driver, a base is provided at the bottom of the pump housing, nuts are installed in the slots located on both sides of the bottom of the pump housing, and a connecting hole is provided on the base. The base and the nuts are fixed by bolts passing through the connecting hole and being screwed into the nuts.

[0021] A base is installed at the bottom of the pump casing, and nuts are installed in slots near the sides of the bottom of the pump casing (specifically, the nuts are tightened in the slots / welded to the slot walls). The base has connection holes. As a preferred option, the base is square plate-shaped with connection holes at its circumferential corners. The base is fixed by bolts passing through the connection holes and screwing them to the nuts, thereby ensuring that the jet pump is more stable when placed on the ground. The pump casing and the base are connected by a detachable installation method, ensuring convenient disassembly and assembly during subsequent maintenance.

[0022] Compared with existing technologies, the mounting structure of this jet pump driver has the following advantages:

[0023] 1. The mounting structure of this jet pump driver can engage the second clamping plate on the carrier plate into the slot formed between two adjacent first clamping plates on the housing, and screw it to the carrier plate through the screw installed on the housing. This ensures that when the screw drives the carrier plate to rise, the first clamping plate and the second clamping plate are pressed together, thereby ensuring the convenience and stability of the driver being installed on the pump housing.

[0024] 2. Each card plate is spaced along the circumference of the pump casing. One edge of the card plate is fixed to the outer wall of the pump casing, and the other edge has a snap-fit ​​part that protrudes from both sides of the card plate. The cross-section of the card plate is T-shaped, and the width of the lower end of the card plate is greater than the gap between the two adjacent snap-fit ​​parts, so that after the card plate is inserted into the slot, its end can abut against and limit the snap-fit ​​parts on the two adjacent card plates.

[0025] 3. The carrier plate can be set to a cuboid shape. The lower end face of the carrier plate is equipped with two retaining plates near the edge to ensure the stability of the carrier plate after it is assembled onto the pump casing.

[0026] Fourth, the screw is screwed into the threaded hole at the circumferential corner of the carrier board to avoid interference with the installation of the circuit board. This ensures the stable installation of the carrier board and provides sufficient space for the installation of the circuit board and various components.

[0027] 5. The screw is inserted into the guide hole inside the guide post. The guide hole guides the connection between the screw and the threaded hole, ensuring convenient assembly.

[0028] 6. Reinforcing ribs are installed between each guide post and the inner wall of the casing to ensure the structural stability of the guide post.

[0029] 7. A receiving groove is opened at the circumferential corner of the top outer wall of the cover. One end of the guide hole penetrates the bottom wall of the receiving groove, so that Luo Huan can be embedded in the receiving groove during subsequent installation and avoid the screw being hit by foreign objects.

[0030] 8. A base can be detachably installed at the bottom of the pump casing to ensure greater stability when the jet pump is placed on the ground, and to facilitate the disassembly and assembly of the base and pump casing during subsequent maintenance of the jet pump. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the jet pump driver mounting structure.

[0032] Figure 2 This is an exploded view of the mounting structure of the jet pump driver.

[0033] Figure 3 This is a schematic diagram of the pump casing.

[0034] Figure 4 This is a schematic diagram of the carrier plate.

[0035] Figure 5 This is a schematic diagram of the casing structure. Figure 1 .

[0036] Figure 6 This is a schematic diagram of the casing structure. Figure 2 .

[0037] Figure 7 This is a structural diagram of the base.

[0038] In the diagram, 1. Pump casing; 1a. Clamping plate one; 1a1. Slot; 1a11. Nut; 1a2. Clamping part; 2. Carrier plate; 2a. Clamping plate two; 2b. Threaded hole; 3. Cover; 3a. Screw; 3b. Guide post; 3b1. Guide hole; 3b2. Reinforcing rib; 3c. Receiving groove; 4. Base; 4a. Connecting hole. Detailed Implementation

[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0040] like Figures 1-7 As shown, in this jet pump driver mounting structure, the jet pump includes a pump housing 1 for mounting the pump body, and the driver includes a carrier plate 2 and a cover 3. The carrier plate 2 is rectangular and has a circuit board and various components for controlling the operation of the pump body embedded on it. The cover 3 covers the cover plate, as shown. Figures 1-4 As shown, the pump housing 1 is cylindrical, and several long strip-shaped retaining plates 1a are arranged circumferentially on its outer wall. The length of each retaining plate 1a is the same as the length of the pump housing 1, and one edge of each retaining plate 1a is integrally formed with the outer wall of the pump housing 1. The other edge has a retaining part 1a2 that protrudes from both sides of the retaining plate 1a. A slot 1a1 is formed between every two retaining plates 1a. Several heat sinks are arranged at intervals along the length direction at the bottom of the carrier plate 2, and a T-shaped retaining plate 2a is arranged in the extension direction near the two sides of the bottom plate of the carrier plate 2 (as an alternative, the retaining plate 2a can also be L-shaped or other shapes). When the retaining plate 2a is assembled, the retaining plate 2a slides into the slot 1a1 from one end. Since the gap between the retaining parts 1a2 on two adjacent retaining plates 1a is smaller than the width of the lower end of the retaining plate 2a, the retaining plate 2a is limited in the slot 1a1.

[0041] like Figure 2 , Figure 3 , Figure 5 As shown, threaded holes 2b are provided at the circumferential corners of the carrier plate 2, and elongated, vertically arranged guide posts 3b are injection molded at the circumferential corners of the cover 3. Each guide post 3b has guide holes 3b1 extending through both ends, and a screw 3a is inserted into each guide hole 3b1. Each screw 3a is screwed into a threaded hole 2b. Figure 6 As shown, the top circumferential corner of the cover 3 is recessed inward to form a receiving groove 3c. The upper end of the guide hole 3b1 penetrates the bottom wall of the receiving groove 3c. When the screw 3a is inserted into the guide hole 3b1, the upper end of the screw 3a is embedded in the guide groove; as shown. Figure 7 As shown, each guide post 3b has several reinforcing ribs 3b2 between its outer wall and the inner wall of the casing 3.

[0042] like Figure 1 , Figure 2 , Figure 7 As shown, the pump housing 1 has a base 4 at the bottom. Four nuts 1a11 are installed in the slots 1a1 located at the bottom of the pump housing 1 near both sides by embedding or welding. The base 4 has four connecting holes 4a corresponding to the nuts 1a11. The base 4 and the pump housing 1 are fixed by bolts passing through the connecting holes 4a and tightening them with the nuts 1a11.

[0043] Assembly Principle: After the assembler installs the circuit board and various components onto the carrier plate 2, they align one end of the second clip 2a on the carrier plate 2 with the slot 1a1 outside the pump housing 1 and insert it, so that the second clip 2a slides into the slot 1a1. Because the distance between the locking parts 1a2 of two adjacent clips 1a is less than the width of the lower end of the second clip 2a, the second clip 2a cannot be pulled out of the slot 1a1. At this time, the user can place the cover 3 on the carrier plate 2 and make the cover... The outer wall of the opening end of the shell 3 abuts against the outer wall of the pump shell 1. Each screw 3a is inserted into the guide hole 3b1 so that the screw 3a is screwed into the threaded hole 2b on the carrier plate 2. As the screw 3a is continuously tightened, the screw 3a cooperates with the threaded hole 2b on the carrier plate 2, so that the carrier plate 2 rises continuously under the action of the thread. During this process, the second clamping plate 2a on the carrier plate 2 can continuously abut against the clamping part 1a2 of the first clamping plate 1a located on both sides of the slot 1a1, so that the carrier plate 2 is pressed and fixed.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0045] Although this document frequently uses terms such as pump housing 1, clamping plate 1a, slot 1a1, nut 1a11, snap-fit ​​part 1a2, carrier plate 2, clamping plate 2a, threaded hole 2b, cover 3, screw 3a, guide post 3b, guide hole 3b1, reinforcing rib 3b2, receiving groove 3c, base 4, and connecting hole 4a, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. An installation structure for a jet pump driver, wherein the jet pump includes a pump housing (1), and the driver includes a carrier plate (2) and a cover (3) covering the carrier plate (2), characterized in that, The outer wall of the opening end of the cover (3) abuts against the outer wall of the pump housing (1). The outer wall of the pump housing (1) is provided with several card plates (1a). The several card plates (1a) are heat dissipation fins that can dissipate heat inside the pump housing (1). There is a slot (1a1) between every two adjacent card plates (1a). The carrier plate (2) has a card plate (2a) that can be inserted into the slot (1a1). The cover (3) is equipped with a screw (3a) that is screwed to the carrier plate (2). When the screw (3a) rotates to lock, the screw (3a) can drive the carrier plate (2) to rise and make the card plate (1a1) rise. (1a) is abutted against the second card plate (2a). The inner circumference of the cover (3) is provided with guide posts (3b) along the height direction of the cover (3). Each guide post (3b) has guide holes (3b1) formed at both ends for the screw (3a) to pass through. The bottom of the pump housing (1) is provided with a base (4). Nuts (1a11) are installed in the slots (1a1) on both sides of the bottom of the pump housing (1). The base (4) is provided with a connecting hole (4a). The base (4) and the nut (1a11) are fixed by bolts passing through the connecting hole (4a) and screwing into the nut (1a11).

2. The mounting structure of the jet pump driver according to claim 1, characterized in that, Several of the first-stage clamping plates (1a) are elongated and spaced circumferentially along the outer wall of the pump housing (1). One edge of each first-stage clamping plate (1a) is fixedly connected to the outer wall of the pump housing (1), and the other edge has a clamping part (1a2) protruding from both sides of the first-stage clamping plate (1a). The second-stage clamping plate (2a) is elongated and has a T-shaped cross-section. The width of the lower end of the second-stage clamping plate (2a) is greater than the gap width between two adjacent clamping parts (1a2).

3. The mounting structure of the jet pump driver according to claim 2, characterized in that, The carrier plate (2) is rectangular, the second card plate (2a) is long strip, and the second card plate (2a) is fixed on both sides of the lower end face of the carrier plate (2).

4. The mounting structure of the jet pump driver according to any one of claims 1-3, characterized in that, The carrier plate (2) has a threaded hole (2b) at its circumferential corner, and the screw (3a) is screwed into the threaded hole (2b).

5. The mounting structure of the jet pump driver according to claim 4, characterized in that, Each of the guide posts (3b) is provided with a number of reinforcing ribs (3b2) between it and the inner wall of the casing (3).

6. The mounting structure of the jet pump driver according to claim 4, characterized in that, A receiving groove (3c) is provided at the circumferential corner of the top outer wall of the cover (3), and one end of the guide hole (3b1) penetrates the bottom wall of the receiving groove (3c).

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