Screw pump positioning device

Abstract

The utility model discloses a screw pump positioning device which comprises a base, a movable table is arranged on the base in a sliding mode, the surface of the movable table is concaved inwards to form a sliding groove, a two-way screw rod is arranged in the sliding groove in a rotating mode, first lead screw nuts are arranged at the two ends of the two-way screw rod, and the two ends of the two-way screw rod are provided with second lead screw nuts. A clamping plate is arranged on the first lead screw nut, a screw pump body is arranged on the moving table, the clamping plate can be driven to fix the screw pump body on the moving table by rotating the bidirectional lead screw rod, and the screw pump body can be driven to move by sliding the moving table; a connecting rod is arranged on the two-way screw rod, at least part of the connecting rod extends out of the moving table and is connected with a ratchet wheel, a pawl is arranged on the moving table, and the ratchet wheel is in meshed connection with the pawl, so that the screw rod drives the screw pump body to move. And screw pumps with different sizes can be fixed by the device.

Description

Technical Field

[0001] The utility model relates to the field of screw pumps, and particularly to a positioning device for a screw pump. Background Art

[0002] A screw pump, also known as a "spiral water lift", is a pump that uses the rotation of spiral blades to make water rise axially in a spiral shape. It consists of a shaft, spiral blades, and a casing. When pumping water, the pump is placed obliquely in the water so that the inclination angle of the pump main shaft is less than that of the spiral blades, and the lower end of the spiral blades contacts the water. It has a simple structure, is easy to manufacture, has a large flow rate, small head loss, and high efficiency, and is mostly used in irrigation, drainage, and lifting sewage, sludge and other occasions. For example, a screw pump positioning device provided in the publication number CN 218208556 U includes a fixed seat. The upper end of the fixed seat is provided with a screw pump body. The lower end of the screw pump body is fixedly connected with a mounting seat. A moving mechanism is installed inside the fixed seat. Detachable mechanisms are arranged on the front and rear sides of the upper end of the mounting seat. The detachable mechanism includes two sets of pads that are attached to the front and rear sides of the upper end of the mounting seat. Three first through holes are formed in each pad. The detachable mechanism further includes six second through holes formed in the front and rear sides of the upper end of the mounting seat. The second through holes correspond to the first through holes respectively. However, the fixed size of this device is single, and it is not easy to fix screw pumps of different sizes. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a positioning device for a screw pump, which solves the problem that the fixed size of the device is single and it is not easy to fix screw pumps of different sizes.

[0004] To achieve the above purpose, the utility model provides a positioning device for a screw pump. The positioning device for a screw pump includes a base. A moving table is slidably arranged on the base. A chute is formed by inward depression on the surface of the moving table. A bidirectional lead screw is rotatably arranged in the chute. First lead screw nuts are arranged at both ends of the bidirectional lead screw. Clamping plates are arranged on the first lead screw nuts. A screw pump body is arranged on the moving table. Rotating the bidirectional lead screw can drive the clamping plates to fix the screw pump body on the moving table. Sliding the moving table can drive the screw pump body to move. A connecting rod is arranged on the bidirectional lead screw, and at least part of the connecting rod extends outside the moving table and is connected with a ratchet. A pawl is arranged on the moving table. The ratchet is meshed with the pawl.

[0005] Preferably, a groove is formed by inward depression on the surface of the base. A lead screw is rotatably arranged in the groove. A second lead screw nut is arranged on the lead screw. The second lead screw nut is connected with the moving table.

[0006] Preferably, a groove body is provided on the base, a guide rod is provided in the groove body, a slider is provided on the moving table, and the slider is slidably arranged on the guide rod.

[0007] Preferably, a motor is provided on the base, and an output shaft of the motor is connected to the lead screw.

[0008] Preferably, a bolt is rotatably provided on the clamping plate, and rotating the bolt can make it abut against the screw pump body.

[0009] Preferably, a limiting groove is provided on the moving table, a sliding seat is provided on the clamping plate, and the sliding seat is slidably arranged in the limiting groove.

[0010] The utility model provides a screw pump positioning device. The screw pump positioning device includes a base, a moving table is slidably arranged on the base, a chute is formed by inward depression on the surface of the moving table, a bidirectional lead screw is rotatably arranged in the chute, first lead screw nuts are arranged at both ends of the bidirectional lead screw, clamping plates are arranged on the first lead screw nuts, a screw pump body is arranged on the moving table, rotating the bidirectional lead screw can drive the clamping plates to fix the screw pump body on the moving table, and sliding the moving table can drive the screw pump body to move; a connecting rod is arranged on the bidirectional lead screw, and at least part of the connecting rod extends outside the moving table and is connected with a ratchet wheel, a pawl is arranged on the moving table, and the ratchet wheel is meshed and connected with the pawl. When using the device, first place the screw pump body on the moving table, then, rotate the bidirectional lead screw so that the double lead screw drives the clamping plates to fix the screw pump body, then, rotate the bolt so that the bolt secondarily fixes the screw pump body, then start the motor so that the motor drives the lead screw to rotate, and the lead screw drives the screw pump body to displace. With a simple structure, the device can fix screw pumps of different sizes.

[0011] Beneficial effects: By rotating the bidirectional lead screw, the double lead screw drives the clamping plates to fix the screw pump body, and then, rotating the bolt makes the bolt secondarily fix the screw pump body, so that the device can fix screw pumps of different sizes.

[0012] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation part. Brief Description of the Drawings

[0013] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the following specific implementation manners, but do not constitute a limitation to the utility model. In the drawings:

[0014] Figure 1 It is the first perspective structure diagram of the positioning device provided by the present utility model;

[0015] Figure 2 is Figure 1 the enlarged structure diagram at position A in

[0016] Figure 3 It is the second perspective structure diagram of the positioning device provided by the present utility model.

[0017] Explanation of reference numerals

[0018] 1. Base; 2. Lead screw; 3. Guide rod; 4. Groove; 5. Slide block; 6. Moving table; 7. Bi-directional lead screw; 8. Clamping plate; 9. Slide seat; 10. Bolt; 11. Ratchet wheel; 12. Ratchet pawl; 13. Screw pump body; 14. Chute; 15. Motor. Specific embodiments

[0019] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model.

[0020] As Figures 1 - 3 shown: The present utility model provides a screw pump positioning device. The positioning device includes a base 1. A moving table 6 is slidably provided on the base 1. A chute 14 is formed by inward depression on the surface of the moving table 6. A bi-directional lead screw 7 is rotatably provided in the chute 14. First lead screw nuts are provided at both ends of the bi-directional lead screw 7. A clamping plate 8 is provided on the first lead screw nut. A screw pump body 13 is provided on the moving table 6. Rotating the bi-directional lead screw 7 can drive the clamping plate 8 to fix the screw pump body 13 on the moving table 6. Sliding the moving table 6 can drive the screw pump body 13 to move; A connecting rod is provided on the bi-directional lead screw 7, and at least part of the connecting rod extends outside the moving table 6 and is connected to a ratchet wheel 11. A ratchet pawl 12 is provided on the moving table 6. The ratchet wheel 11 is meshed and connected with the ratchet pawl 12.

[0021] The working principle of the present utility model: When using this device, first place the screw pump body on the moving table. Then, rotate the bi-directional lead screw so that the bi-directional lead screw drives the clamping plate to fix the screw pump body. Then, rotate the bolt so that the bolt performs secondary fixation on the screw pump body. Then start the motor so that the motor drives the lead screw to rotate, so that the lead screw drives the screw pump body to move. With a simple structure, the device can fix screw pumps of different sizes.

[0022] In a preferred embodiment of the present utility model, a groove 4 is formed by inwards recessing the surface of the base 1, a lead screw 2 is rotatably arranged in the groove 4, a second lead screw nut is arranged on the lead screw 2, and the second lead screw nut is connected to the moving table 6, which is to facilitate the lead screw to drive the moving table for displacement.

[0023] In a preferred embodiment of the present utility model, a groove body is arranged on the base 1, a guide rod 3 is arranged in the groove body, a slider 5 is arranged on the moving table 6, and the slider 5 is slidably arranged on the guide rod 3, which is to facilitate the limitation of the moving table and support the moving table through the guide rod at the same time.

[0024] In a preferred embodiment of the present utility model, a motor 15 is arranged on the base 1, and the output shaft of the motor 15 is connected to the lead screw 2, which is to facilitate the motor to drive the lead screw to rotate.

[0025] In a preferred embodiment of the present utility model, a bolt 10 is rotatably arranged on the clamping plate 8, and rotating the bolt 10 can make it abut against the screw pump body 13, which is to facilitate the further fixation of the screw pump.

[0026] In a preferred embodiment of the present utility model, a limiting groove is arranged on the moving table 6, a sliding seat 9 is arranged on the clamping plate 8, and the sliding seat 9 is slidably arranged in the limiting groove, which is to facilitate the limitation of the clamping plate.

[0027] The preferred embodiments of the present utility model have been described in detail above in conjunction with the drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the technical concept scope of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all fall within the protection scope of the present utility model.

[0028] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present utility model does not further describe various possible combination methods.

[0029] In addition, any combination can be made between various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, it should also be regarded as the content disclosed by the present utility model.

Claims

1. A screw pump positioning device, characterized in that, The screw pump positioning device includes a base (1), on which a moving table (6) is slidably arranged. A chute (14) is formed by inward depression on the surface of the moving table (6). A bidirectional lead screw (7) is rotatably arranged in the chute (14). First lead screw nuts are arranged at both ends of the bidirectional lead screw (7), and clamping plates (8) are arranged on the first lead screw nuts. A screw pump body (13) is arranged on the moving table (6). Rotating the bidirectional lead screw (7) can drive the clamping plates (8) to fix the screw pump body (13) on the moving table (6), and sliding the moving table (6) can drive the screw pump body (13) to move; A connecting rod is arranged on the bidirectional lead screw (7), and at least part of the connecting rod extends outside the moving table (6) and is connected with a ratchet wheel (11). A ratchet pawl (12) is arranged on the moving table (6), and the ratchet wheel (11) is meshed and connected with the ratchet pawl (12).

2. The screw pump positioning device according to claim 1, characterized in that, A groove (4) is formed by inward depression on the surface of the base (1). A lead screw (2) is rotatably arranged in the groove (4). A second lead screw nut is arranged on the lead screw (2), and the second lead screw nut is connected with the moving table (6).

3. The screw pump positioning device according to claim 2, characterized in that A slot is arranged on the base (1), a guide rod (3) is arranged in the slot, a slider (5) is arranged on the moving table (6), and the slider (5) is slidably arranged on the guide rod (3).

4. The screw pump positioning device according to claim 3, characterized in that, A motor (15) is arranged on the base (1), and the output shaft of the motor (15) is connected with the lead screw (2).

5. The screw pump positioning device according to claim 1, wherein, A bolt (10) is rotatably arranged on the clamping plate (8), and rotating the bolt (10) can make it contact with the screw pump body (13).

6. The screw pump positioning device according to claim 5, characterized in that, A limiting slot is arranged on the moving table (6), a sliding seat (9) is arranged on the clamping plate (8), and the sliding seat (9) is slidably arranged in the limiting slot.

Images