Multi-stage speed-adjustable double-head double-screw pump

Abstract

The invention relates to the technical field of double-head double-screw pumps, and discloses a multistage speed-adjustable double-head double-screw pump which comprises a pump body, an adjusting mechanism is fixedly connected to the left end of the pump body, an operating mechanism is fixedly connected to the top of the adjusting mechanism, and a dismounting mechanism is fixedly connected to the top of the pump body; and the telescopic assembly comprises a supporting seat, the supporting seat is fixedly connected to the left end of the pump body, a supporting vertical plate is fixedly connected to the left side of the supporting seat, long rods are rotationally connected to the front end and the rear end of the interior of the supporting vertical plate correspondingly, and cross blocks are fixedly connected to the right ends of the long rods. According to the multi-stage speed-adjustable double-head double-screw pump, the positioning ring performs the corresponding rotation action under the limiting and supporting action of the L-shaped round piece, so that when the flow speed and flow in the pump body are adjusted, adjustment of one rectangular strip can be independently and randomly performed, and then the flow in the pump body is independently adjusted and controlled; and operation is convenient and fast, and use is easy.

Description

Technical Field

[0001] The invention relates to the technical field of double-headed twin-screw pumps, in particular to a multi-stage speed-adjustable double-headed twin-screw pump. Background Art

[0002] The ‌Double-headed twin-screw pump‌ is a pump with strong self-priming ability. It can transport various complex working conditions and materials containing solid particles, gas-liquid mixtures, high viscosity, low viscosity, etc., thereby improving efficiency and reducing costs. The double-headed twin-screw pump has the characteristics of no pulse phenomenon, no particle damage, high pressure, wide speed range, large flow range, etc. These characteristics make it have a wide range of uses and advantages in industrial applications.

[0003] According to the announcement number CN205714748U, a multi-stage adjustable speed double-head twin-screw pump is disclosed, which includes a pump body, a first-stage active screw and a first-stage driven screw passing through the first-stage screw pump chamber of the pump body, a second-stage active screw and a second-stage driven screw passing through the second-stage screw pump chamber of the pump body, and a third-stage active screw and a third-stage driven screw passing through the third-stage screw pump chamber of the pump body.

[0004] The multi-stage speed-adjustable double-headed twin-screw pump, when in use, allows the active screw and the driven screw to rotate and mesh to form a volume change to continuously suck in the medium, and the power of each stage of the screw is transmitted by the sprocket. By adjusting the transmission ratio of the sprocket, the pressure and flow requirements at the discharge end are guaranteed; the utility model has the advantages of increasing service life and preventing leakage, but it is not convenient to perform corresponding adjustment and control operations when in use, so the scheme needs to be improved accordingly. Summary of the invention

[0005] The object of the present invention is to provide a multi-stage speed-adjustable double-head twin-screw pump to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a multi-stage speed-adjustable double-head twin-screw pump, comprising a pump body, an adjustment mechanism is fixedly connected to the left end of the pump body, an operating mechanism is fixedly connected to the top of the adjustment mechanism, and a disassembly mechanism is fixedly connected to the top of the pump body; The adjustment mechanism includes a telescopic component and a locking component, and the locking component is arranged on one side of the telescopic component; The telescopic assembly includes a support seat, which is fixedly connected to the left end of the pump body, a support vertical plate is fixedly connected to the left side of the support seat, and long rods are rotatably connected to the front and rear ends of the support vertical plate respectively, a cross block is fixedly connected to the right end of the long rod, a support shaft is slidably connected to the surface of the cross block, a T-shaped round rod is rotatably connected to the surface of the support shaft, a transmission wheel is fixedly connected to the left end of the long rod surface, there are two transmission wheels, and transmission belts are transmission-connected to the surfaces of the two transmission wheels, and a hand wheel is fixedly connected to the left end of the long rod.

[0007] According to the above technical solution, a limiting slot is opened inside the support shaft, the surface of the cross block is slidably connected to the inside of the limiting slot, a rotating hole is opened inside the left end of the support vertical plate, and the surface of the long rod is rotatably connected to the inside of the rotating hole.

[0008] According to the above technical scheme, the positioning assembly includes a limiting cylinder, which is arranged inside the right end of the support seat, and the surface of the limiting cylinder is rotatably connected to a screw rod, and the surface of the screw rod is threadedly connected to a support cylinder, and the front and rear ends of the screw rod are respectively fixedly connected to connecting blocks, and the surface of the connecting block is fixedly connected to a positioning ring, and the surface of the positioning ring is rotatably connected to an L-shaped round piece, one end of the L-shaped round piece is fixedly connected to the left side of the pump body, and the left end of the pump body is fixedly connected to a T-shaped cylinder, the interior of the T-shaped cylinder is tightly fitted with the interior of the screw rod, the surface of the screw rod is fixedly connected to a support ring, and the right end of the support ring is fixedly connected to a clamping strip, the front and rear ends of the support tube are respectively fixedly connected to rectangular strips, and the right end of the support tube is fixedly connected to a valve core.

[0009] According to the above technical solution, a positioning hole is provided inside the positioning ring, and a card strip is provided at the right end of the card strip, and the surface of the card strip matches the inside of the positioning hole.

[0010] According to the above technical solution, a circular cavity is opened at the left end of the pump body, the surface of the support tube is slidably connected to the inside of the circular cavity, rectangular grooves are opened at the front and rear ends of the circular cavity respectively, and the surface of the rectangular strip is slidably connected to the inside of the rectangular groove.

[0011] The cam is connected to the top of the support seat by a toothed plate, and the toothed plate is connected to the top of the support seat by a toothed plate.

[0012] According to the above technical solution, a sliding groove is opened inside the sliding seat, the surface of the T-shaped block is slidably connected to the inside of the sliding groove, the right end of the threaded rod is rotationally connected to the right side inside the sliding seat, a socket is opened inside the top end of the T-shaped plate, and the bottom end of the vertical rod surface matches the inside of the socket.

[0013] According to the above technical solution, a through hole is formed at the top of the I-shaped block, the surface of the vertical rod passes through the through hole at the top of the I-shaped block, a tooth groove is formed at one end of the supporting side plate, and the surface of the shift rod matches the inside of the tooth groove.

[0014] According to the above technical solution, the disassembly and assembly mechanism includes a base plate, which is fixedly connected to the top of the pump body, a support plate is provided on the top of the base plate, a T-valve tube is fixedly connected to the top of the support plate, a side block is fixedly connected to the left end of the top of the T-valve tube, a second spring is fixedly connected to the left end of the side block, a vertical bar is fixedly connected to the left end of the second spring, an insertion rod is fixedly connected to the bottom end of the vertical bar, and a T-shaped rod is fixedly connected to the inside of the side block.

[0015] According to the above technical solution, a sliding hole is opened inside the vertical bar, the surface of the T-shaped rod is slidably connected to the inside of the sliding hole, a mounting hole is opened inside the left end of the bottom plate, and the surface of the plug rod is plugged into the inside of the mounting hole.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The multi-stage adjustable speed double-head twin-screw pump, through the provided adjustment mechanism, the card strip moves and correspondingly disengages from the card position inside the positioning ring, and at this time the positioning ring performs a corresponding rotation under the limiting support of the L-shaped round piece, and thus when adjusting the flow rate and flow inside the pump body, one of the rectangular strips can be adjusted independently, thereby performing an independent adjustment and control function on the flow inside the pump body, and the operation is convenient and fast, and it is easy to use, so that when in use, it is convenient to perform corresponding adjustment and control operations.

[0017] 2. The multi-stage speed-adjustable double-headed twin-screw pump, through the provided adjustment mechanism, turns one of the hand wheels and drives the long rod to rotate accordingly under the support limit inside the support shaft, and during the rotation process, the cross block at one end of the long rod drives the support shaft to rotate inside the support shaft, and then can drive the card bar to rotate, drive the positioning ring to rotate, thereby driving the screw rod to rotate accordingly under the limit support inside the T-shaped tube, and drive the support tube to slide accordingly under the limit action of the rectangular bar inside the pump body, thereby driving the valve core at one end of the support tube to move, change the movement under the limit action inside the pump body, and finally can adjust the flow rate of the flow inside the pump body.

[0018] 3. The multi-stage speed-adjustable double-headed twin-screw pump, through the operating mechanism set up, when the T-shaped plate moves, it drives the T-shaped round rod at its bottom end to move and drives the support shaft to move, and finally drives the valve core to move and adjust. In addition, when performing individual control, one of the dial rings is pulled to move upward, and then the dial rod is driven to move upward, which drives the first spring to undergo elastic compression changes, thereby correspondingly driving the vertical rod to disengage from the internal position of the T-shaped plate, and then rotating the dial rod so that one end of the vertical rod is stuck in the internal position of the support side plate for a blocking effect, thereby achieving the effect of disengaging the vertical rod and facilitating the flow control and adjustment of the pump body.

[0019] 4. The multi-stage adjustable speed double-head twin-screw pump can disassemble and clean the T-valve tube through the disassembly and assembly mechanism. The vertical bar can be pulled open to move under the limiting effect of the surface of the T-shaped rod, and then the plug rod can be driven to move and disengage from the internal position of the left end of the bottom plate under the support of the side block, so that the T-valve tube can be disassembled and the maintenance operation inside the pump body can be conveniently carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a three-dimensional diagram of the structure of the present invention; Figure 2 It is a three-dimensional diagram of the structural adjustment mechanism of the present invention; Figure 3 This is a three-dimensional exploded view of the telescopic component of the structure of the present invention; Figure 4 This is a three-dimensional exploded view of the parts of the telescopic assembly of the structure of the present invention; Figure 5 It is a three-dimensional diagram of the structural positioning assembly of the present invention; Figure 6 A three-dimensional diagram of the parts of the structural positioning assembly of the present invention; Figure 7 Two three-dimensional disassembly diagrams of the parts of the structural positioning assembly of the present invention; Figure 8 This is a three-dimensional exploded view of the operating mechanism of the structure of the present invention; Fig. 9 This is a three-dimensional exploded view of the parts of the operating mechanism of the structure of the present invention; Fig.10 This is a three-dimensional disassembly diagram of the disassembly and assembly mechanism of the structure of the present invention; Fig.11 This is a three-dimensional disassembled diagram of the parts of the disassembly and assembly mechanism of the structure of the present invention; Fig.12 It is a three-dimensional cross-sectional view of the pump body of the present invention.

[0021] In the figure: 1, pump body; 2, adjustment mechanism; 21, telescopic assembly; 211, support seat; 212, support vertical plate; 213, long rod; 214, cross block; 215, support shaft; 216, T-shaped round rod; 217, transmission wheel; 218, transmission belt; 219, hand wheel; 22, positioning assembly; 221, limiting cylinder; 222, screw rod; 223, connecting block; 224, positioning ring; 225, T-shaped cylinder; 226, support cylinder; 227, L-shaped round piece; 228, support ring; 229 , card strip; 2291, rectangular strip; 2292, valve core; 3, operating mechanism; 31, slide seat; 32, motor; 33, threaded rod; 34, T-shaped block; 341, T-shaped plate; 35, I-shaped block; 351, supporting side plate; 36, vertical rod; 37, lever; 371, first spring; 38, circular ring; 39, lever ring; 4, disassembly and assembly mechanism; 41, bottom plate; 42, support plate; 43, T valve tube; 44, vertical strip; 45, second spring; 46, T-shaped rod; 47, side block; 48, plug rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides the following technical solutions: Embodiment 1

[0024] Combination Figures 2 to 12 A multi-stage speed-adjustable double-head twin-screw pump comprises a pump body 1, an adjusting mechanism 2 is fixedly connected to the left end of the pump body 1, an operating mechanism 3 is fixedly connected to the top of the adjusting mechanism 2, and a disassembly mechanism 4 is fixedly connected to the top of the pump body 1; The adjustment mechanism 2 includes a telescopic component 21 and a locking component 22, and the locking component 22 is arranged on one side of the telescopic component 21; The telescopic assembly 21 includes a support seat 211, which is fixedly connected to the left end of the pump body 1. A support vertical plate 212 is fixedly connected to the left side of the support seat 211. The front and rear ends of the support vertical plate 212 are rotatably connected to long rods 213 respectively. The right end of the long rod 213 is fixedly connected to a cross block 214. A support shaft 215 is slidably connected to the surface of the cross block 214. A T-shaped round rod 216 is rotatably connected to the surface of the support shaft 215. A transmission wheel 217 is fixedly connected to the left end of the surface of the long rod 213. There are two transmission wheels 217. The surfaces of the two transmission wheels 217 are transmission-connected with transmission belts 218. A handwheel 219 is fixedly connected to the left end of the long rod 213. A limiting slot is provided inside the support shaft 215. The surface of the cross block 214 is slidably connected to the inside of the limiting slot. A rotating hole is provided inside the left end of the support vertical plate 212. The surface of the long rod 213 is rotatably connected to the inside of the rotating hole. Component 22 includes a limiting cylinder 221, which is arranged inside the right end of the support seat 211, and a screw rod 222 is rotatably connected to the surface of the limiting cylinder 221, and a support cylinder 226 is threadedly connected to the surface of the screw rod 222, and a connecting block 223 is fixedly connected to the front and rear ends of the screw rod 222, and a positioning ring 224 is fixedly connected to the surface of the connecting block 223, and an L-shaped round component 227 is rotatably connected to the surface of the positioning ring 224, and one end of the L-shaped round component 227 is fixedly connected to the left side of the pump body 1, and a T-shaped cylinder 225 is fixedly connected to the left end of the pump body 1, and the interior of the T-shaped cylinder 225 is tightly fitted with the interior of the screw rod 222, a support ring 228 is fixedly connected to the surface of the screw rod 222, and a clamping strip 229 is fixedly connected to the right end of the support ring 228, a rectangular strip 2291 is fixedly connected to the front and rear ends of the support cylinder 226, and a valve core 2292 is fixedly connected to the right end of the support cylinder 226.

[0025] Furthermore, a positioning hole is opened inside the positioning ring 224, and a locking strip is provided at the right end of the locking strip 229, the surface of the locking strip matches the inside of the positioning hole, a circular cavity is opened at the left end inside the pump body 1, the surface of the support cylinder 226 is slidably connected to the inside of the circular cavity, rectangular grooves are opened at the front and rear ends of the circular cavity respectively, and the surface of the rectangular strip 2291 is slidably connected to the inside of the rectangular groove, and the positioning ring 224 performs corresponding rotation under the limiting support of the L-shaped round part 227, and then when adjusting the flow rate and flow inside the pump body 1, one of the rectangular strips 2291 can be adjusted separately and arbitrarily, so as to perform the flow control function of the pump body 1 separately, and the operation is convenient and fast, and it is easy to use. Embodiment 2

[0026] See also Figure 1-12, and on the basis of the first embodiment, the operating mechanism 3 further comprises a slide seat 31, the slide seat 31 is fixedly connected to the top of the support seat 211, the left end of the slide seat 31 is fixedly connected to a motor 32, the right end of the motor 32 is threadedly connected to a threaded rod 33, the surface of the threaded rod 33 is threadedly connected to a T-shaped block 34, the front and rear ends of the T-shaped block 34 are respectively fixedly connected to a T-shaped plate 341, the bottom end of the T-shaped plate 341 is fixedly connected to the top of the T-shaped round rod 216, the top of the T-shaped block 34 is fixedly connected to an I-shaped block 35, the front and rear sides of the I-shaped block 35 are respectively fixedly connected to support side plates 351, the upper and lower ends of the I-shaped block 35 are respectively slidably connected to the inside of the vertical rod 36, the top of the vertical rod 36 is fixedly connected to a dial ring 39, the surface of the vertical rod 36 is rotatably connected to a dial rod 37, the top of the dial rod 37 is fixedly connected to a first spring 371, the top of the first spring 371 is fixedly connected to a circular ring 38, and the top of the circular ring 38 is rotatably connected to the top of the I-shaped block 35.

[0027] Furthermore, a slide groove is provided inside the slide seat 31, the surface of the T-shaped block 34 is slidably connected to the inside of the slide groove, the right end of the threaded rod 33 is rotatably connected to the right side of the slide seat 31, a socket is provided inside the top of the T-shaped plate 341, the bottom end of the surface of the vertical rod 36 matches the inside of the socket, a through hole is provided at the top of the I-shaped block 35, the surface of the vertical rod 36 passes through the through hole provided at the top of the I-shaped block 35, a tooth groove is provided at one end of the supporting side plate 351, the surface of the lever 37 matches the inside of the tooth groove, the first spring 371 undergoes elastic compression and changes, thereby correspondingly driving the vertical rod 36 to disengage from the blocking position inside the T-shaped plate 341, and rotating the lever 37 so that one end of it is stuck in the supporting side plate 351 for blocking, thereby disengaging the vertical rod 36 and facilitating the flow control and adjustment of the pump body 1. Embodiment 3

[0028] See also Figure 1-12 On the basis of the first embodiment, the disassembly and assembly mechanism 4 further comprises a bottom plate 41, the bottom plate 41 is fixedly connected to the top of the pump body 1, a support plate 42 is arranged on the top of the bottom plate 41, a T-valve tube 43 is fixedly connected to the top of the support plate 42, a side block 47 is fixedly connected to the left end of the top of the T-valve tube 43, a second spring 45 is fixedly connected to the left end of the side block 47, a vertical bar 44 is fixedly connected to the left end of the second spring 45, a plug rod 48 is fixedly connected to the bottom end of the vertical bar 44, and a T-shaped rod 46 is fixedly connected to the inside of the side block 47.

[0029] Furthermore, a sliding hole is opened inside the vertical bar 44, and the surface of the T-shaped rod 46 is slidably connected to the inside of the sliding hole. A mounting hole is opened inside the left end of the bottom plate 41, and the surface of the plug rod 48 is plugged into the inside of the mounting hole. The vertical bar 44 is pulled open to move under the limiting effect of the surface of the T-shaped rod 46, and then the plug rod 48 can be driven to move and disengage from the position inside the left end of the bottom plate 41 under the support of the side block 47, so that the T-valve tube 43 can be disassembled and the maintenance operation inside the pump body 1 can be facilitated.

[0030] In actual operation, when this device is used, when the equipment is used and when the speed is adjusted, one of the hand wheels 219 is turned and the long rod 213 is driven to rotate accordingly under the support limit inside the support shaft 215, and during the rotation process, the cross block 214 at one end of the long rod 213 drives the support shaft 215 to rotate inside the support shaft 215, and then the card strip 229 can be driven to rotate, and the positioning ring 224 can be driven to rotate, so that the screw rod 222 can be driven to rotate accordingly under the limit support inside the T-shaped cylinder 225, and then the support cylinder 226 can be driven to slide accordingly under the limit action of the rectangular strip 2291 inside the pump body 1, so that the valve core 2292 at one end of the support cylinder 226 can be driven to move under the limit action inside the pump body 1 when moving, and finally the flow rate of the flow inside the pump body 1 can be adjusted; In addition, during the process of adjusting the flow rate of the flow inside the pump body 1, when it is necessary to control the individual flow rate of the rectangular strip 2291, the limiting cylinder 221 can be allowed to move accordingly under the limiting action inside the support seat 211, thereby driving the support shaft 215 to move, driving the support ring 228 to move, driving the clamping strip 229 to move and correspondingly disengaging from the clamping action inside the positioning ring 224, and at this time, the positioning ring 224 performs a corresponding rotation action under the limiting support action of the L-shaped round piece 227, and thereby when adjusting the flow rate and flow inside the pump body 1, one of the rectangular strips 2291 can be adjusted individually and arbitrarily, thereby performing an individual adjustment and control action on the flow inside the pump body 1, and the operation is convenient and fast, and easy to use; In addition, during the specific adjustment process, when the two valve cores 2292 are adjusted at the same time, the motor 32 is started to drive the threaded rod 33 to rotate, and the T-shaped block 34 is driven to move, and then the T-shaped plate 341 is driven to move, and the T-shaped round rod 216 at its bottom end is driven to move and the support shaft 215 is driven to move, and finally the valve core 2292 is driven to move and adjust. In addition, when performing individual control, one of the dial rings 39 is pulled to move upward, and then the dial rod 37 is driven to move upward, and the first spring 371 is driven to elastically compress and change, so that the vertical rod 36 is driven to disengage from the internal position of the T-shaped plate 341, and then the dial rod 37 is rotated to make one end of the vertical rod 36 be stuck in the internal position of the support side plate 351, so that the vertical rod 36 can be disengaged, and the flow control and adjustment of the pump body 1 are convenient; In addition, when repairing the inside of the pump body 1, the T-valve tube 43 can be disassembled and cleaned, and the vertical bar 44 can be pulled open to move under the limiting effect of the surface of the T-shaped rod 46, and then the insertion rod 48 can be driven to move and disengage from the position inside the left end of the bottom plate 41 under the support of the side block 47, so that the T-valve tube 43 can be disassembled and the maintenance operation inside the pump body 1 can be facilitated.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-stage speed-adjustable double-head twin-screw pump, comprising a pump body (1), characterized in that: The left end of the pump body (1) is fixedly connected to an adjusting mechanism (2), the top of the adjusting mechanism (2) is fixedly connected to an operating mechanism (3), and the top of the pump body (1) is fixedly connected to a disassembly mechanism (4); The adjustment mechanism (2) comprises a telescopic component (21) and a locking component (22), wherein the locking component (22) is arranged on one side of the telescopic component (21); The telescopic assembly (21) comprises a support seat (211), the support seat (211) being fixedly connected to the left end of the pump body (1), a support vertical plate (212) being fixedly connected to the left side of the support seat (211), a long rod (213) being rotatably connected to the front and rear ends of the support vertical plate (212), a cross block (214) being fixedly connected to the right end of the long rod (213), a support shaft (215) being slidably connected to the surface of the cross block (214), a T-shaped round rod (216) being rotatably connected to the surface of the support shaft (215), a transmission wheel (217) being fixedly connected to the left end of the surface of the long rod (213), two transmission wheels (217) being provided, transmission belts (218) being transmission-connected to the surfaces of the two transmission wheels (217), and a hand wheel (219) being fixedly connected to the left end of the long rod (213).

2. A multi-stage speed-adjustable double-head twin-screw pump according to claim 1, characterized in that: A limiting slot is provided inside the support shaft (215), the surface of the cross block (214) is slidably connected to the inside of the limiting slot, a rotating hole is provided inside the left end of the support vertical plate (212), and the surface of the long rod (213) is rotatably connected to the inside of the rotating hole.

3. A multi-stage speed-adjustable double-headed twin-screw pump according to claim 2, characterized in that: The positioning assembly (22) comprises a limiting cylinder (221), the limiting cylinder (221) being arranged inside the right end of the support seat (211), the surface of the limiting cylinder (221) being rotatably connected to a screw rod (222), the surface of the screw rod (222) being threadedly connected to a support cylinder (226), the front and rear ends of the screw rod (222) being fixedly connected to connecting blocks (223) respectively, the surface of the connecting block (223) being fixedly connected to a positioning ring (224), the surface of the positioning ring (224) being rotatably connected to an L-shaped round piece (227), One end of the L-shaped round piece (227) is fixedly connected to the left side of the pump body (1); a T-shaped cylinder (225) is fixedly connected to the interior of the left end of the pump body (1); the interior of the T-shaped cylinder (225) is tightly fitted to the interior of the screw rod (222); a support ring (228) is fixedly connected to the surface of the screw rod (222); a clamping strip (229) is fixedly connected to the right end of the support ring (228); rectangular strips (2291) are fixedly connected to the front and rear ends of the support cylinder (226); and a valve core (2292) is fixedly connected to the right end of the support cylinder (226).

4. A multi-stage speed-adjustable double-headed twin-screw pump according to claim 3, characterized in that: A positioning hole is provided inside the positioning ring (224), and a clamping strip is provided at the right end of the clamping strip (229), wherein the surface of the clamping strip matches the inside of the positioning hole.

5. A multi-stage speed-adjustable double-headed twin-screw pump according to claim 4, characterized in that: A circular cavity is provided at the left end of the pump body (1), the surface of the support tube (226) is slidably connected to the inside of the circular cavity, rectangular grooves are provided at the front and rear ends of the circular cavity, and the surface of the rectangular strip (2291) is slidably connected to the inside of the rectangular groove.

6. A multi-stage speed-adjustable double-head twin-screw pump according to claim 5, characterized in that: The operating mechanism (3) comprises a slide seat (31), the slide seat (31) being fixedly connected to the top of a support seat (211), the left end of the slide seat (31) being fixedly connected to a motor (32), the right end of the motor (32) being threadedly connected to a threaded rod (33), the surface of the threaded rod (33) being threadedly connected to a T-shaped block (34), the front and rear ends of the T-shaped block (34) being fixedly connected to T-shaped plates (341), the bottom end of the T-shaped plate (341) being fixedly connected to the top of the T-shaped round rod (216), the top of the T-shaped block (34) being fixedly connected to a working The I-shaped block (35) has support side plates (351) fixedly connected to the front and rear sides of the I-shaped block (35), vertical rods (36) are slidably connected to the interior of the upper and lower ends of the I-shaped block (35), a shifting ring (39) is fixedly connected to the top of the vertical rod (36), a shifting rod (37) is rotatably connected to the surface of the vertical rod (36), a first spring (371) is fixedly connected to the top of the shifting rod (37), a circular ring (38) is fixedly connected to the top of the first spring (371), and the top of the circular ring (38) is rotatably connected to the top of the interior of the I-shaped block (35).

7. A multi-stage speed-adjustable double-head twin-screw pump according to claim 6, characterized in that: A slide groove is provided inside the slide seat (31), the surface of the T-shaped block (34) is slidably connected to the inside of the slide groove, the right end of the threaded rod (33) is rotatably connected to the right side inside the slide seat (31), a socket is provided inside the top end of the T-shaped plate (341), and the bottom end of the surface of the vertical rod (36) matches the inside of the socket.

8. A multi-stage speed-adjustable double-headed twin-screw pump according to claim 7, characterized in that: A through hole is formed at the top of the I-shaped block (35), the surface of the vertical rod (36) passes through the through hole formed at the top of the I-shaped block (35), a tooth groove is formed at one end of the supporting side plate (351), and the surface of the shifting rod (37) matches the inside of the tooth groove.

9. A multi-stage speed-adjustable double-headed twin-screw pump according to claim 8, characterized in that: The disassembly and assembly mechanism (4) comprises a bottom plate (41), the bottom plate (41) being fixedly connected to the top of the pump body (1), a support plate (42) being arranged on the top of the bottom plate (41), a T-valve tube (43) being fixedly connected to the top of the support plate (42), a side block (47) being fixedly connected to the left end of the top of the T-valve tube (43), a second spring (45) being fixedly connected to the left end of the side block (47), a vertical bar (44) being fixedly connected to the left end of the second spring (45), a plug rod (48) being fixedly connected to the bottom end of the vertical bar (44), and a T-shaped rod (46) being fixedly connected to the inside of the side block (47).

10. A multi-stage speed-adjustable double-head twin-screw pump according to claim 9, characterized in that: A sliding hole is provided inside the vertical bar (44), the surface of the T-shaped rod (46) is slidably connected to the inside of the sliding hole, a mounting hole is provided inside the left end of the bottom plate (41), and the surface of the insertion rod (48) is plugged into the inside of the mounting hole.

Images