Regulated negative pressure constant output pump

Abstract

This application discloses an adjustable negative pressure quantitative output pump, relating to the field of negative pressure pumps. It includes a pump body with an adjustment component at the bottom and load-bearing components on both sides. The height of the transmission block is adjusted via a threaded rod, threaded sleeve, movable block, and transmission block. The upward movement of the transmission block causes the fixed block to rise, thereby lifting the tilted side of the pump body and adjusting its level. This facilitates level adjustment, ensuring the pump's inlet and outlet are on the same horizontal line, preventing damage to the pump body. The pump is easy to adjust and use. An extension seat and clamping plate are used to assist in clamping the connecting pipe. A rotating rod, limit pin, limit seat, and spring are used to lock the rotating rod and thus the extension distance of the extension seat, providing auxiliary support and clamping the connecting pipe. This ensures the connecting pipe remains stable when transferring materials at the connection point with the pump body, preventing damage to the pump body.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure pump technology, and in particular to an adjustable negative pressure quantitative output pump. Background Technology

[0002] Negative pressure quantitative output pumps utilize negative pressure to achieve quantitative delivery of liquids or gases. Unlike variable pumps, negative pressure quantitative output pumps mainly control the flow rate indirectly by changing the rotation speed, while variable pumps directly adjust the flow rate by changing the internal structure. Negative pressure quantitative output pumps can provide stable flow output, improving production efficiency and product quality.

[0003] When installing a negative pressure quantitative output pump, it is generally mounted on a frame near the material. The feed inlet on one side of the pump body is connected to the material supply source through a hose, while the outer surface of the pump body opposite to the feed inlet is connected to the system or equipment that requires fluid through a hose. The negative pressure quantitative output pump is used to achieve material conveying.

[0004] Existing negative pressure quantitative output pumps are usually installed directly on the frame. However, due to the difference in their working principle compared to ordinary pumps, negative pressure quantitative output pumps require a high degree of levelness between the pump inlet and outlet during installation. Existing pumps lack components for leveling adjustment, which can easily lead to unnecessary stress on the pump body when connecting to the pipeline. Long-term use may damage the pump body. Furthermore, adjusting the levelness of existing pumps requires removing bolts and inserting shims, which is inconvenient. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides an adjustable negative pressure quantitative output pump.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable negative pressure quantitative output pump, including a pump body, an adjusting component is provided at the bottom of the pump body, and a bearing component is provided on both sides of the pump body;

[0009] The adjustment assembly includes a mounting base hinged to the bottom of the pump body, auxiliary seats on both sides of the mounting base, a fixing plate mounted on the upper surface of the auxiliary seats, a threaded sleeve fixedly mounted inside the fixing plate, a threaded rod engaged inside the threaded sleeve, a movable block movably connected to one end of the threaded rod near the pump body, a transmission block mounted above the auxiliary seats, and a fixing block fixedly mounted on the outer surface of the pump body, the fixing block being hinged to the transmission block.

[0010] The support assembly includes a fixed base fixedly mounted on the outer surface of the pump body, a limiting seat installed below the fixed base, an extension seat provided at the end of the fixed base away from the pump body, two clamping plates provided above the extension seat, a rotating rod hinged to the lower part of the extension seat, two limiting pins provided inside the bottom end of the rotating rod, and a spring installed between the two limiting pins.

[0011] As a preferred embodiment of the adjustable negative pressure quantitative output pump of this utility model, two limiting plates are installed on the upper surface of the auxiliary seat, and limiting protrusions are provided on the adjacent surfaces of the two limiting plates. A limiting groove is opened on the outer surface of the transmission block to cooperate with the limiting protrusions. The transmission block is movably connected between the two limiting plates through the cooperation of the limiting groove and the limiting protrusions.

[0012] In a preferred embodiment of the adjustable negative pressure quantitative output pump of this utility model, the bottom of the transmission block and the outer surface of the movable block are provided with mutually cooperating inclined surfaces.

[0013] As a preferred embodiment of the adjustable negative pressure quantitative output pump of this utility model, two limiting rods are fixedly installed on the side of the fixed plate near the pump body, and the outer surface of the movable block is provided with insertion holes that cooperate with the limiting rods.

[0014] As a preferred embodiment of the adjustable negative pressure quantitative output pump of this utility model, an installation block is installed on the upper surface of the extension seat, and the two clamping plates are hinged to the top of the installation block. Two insertion rods are installed on the side of the extension seat near the fixed seat, and blind holes that cooperate with the insertion rods are opened on the outer surface of the fixed seat.

[0015] As a preferred embodiment of the adjustable negative pressure quantitative output pump of this utility model, the bottom of the rotating rod is provided with through holes on both sides that cooperate with the limiting pin, and the outer surface of the limiting seat is provided with limiting holes that cooperate with the limiting pin.

[0016] (III) Beneficial Effects

[0017] This invention provides an adjustable negative pressure quantitative output pump. It has the following beneficial effects:

[0018] 1. By setting up a threaded rod, threaded sleeve, movable block, and transmission block, the height of the transmission block can be adjusted. The upward movement of the transmission block drives the fixed block to rise, thereby lifting the tilt side of the pump body and adjusting the level of the pump body. This facilitates level adjustment, ensures that the inlet and outlet of the pump body are on the same horizontal line, avoids damage to the pump body, and is easy to adjust and use.

[0019] 2. The extension seat and clamping plate are used to assist in clamping the connecting pipe. The rotating rod, limit pin, limit seat and spring are used to lock the extension distance of the extension seat and provide auxiliary support. This helps to clamp the connecting pipe and ensures that the connecting pipe can remain stable when transmitting materials at the connection with the pump body, thus avoiding damage to the pump body. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0023] Figure 3 This is an exploded structural diagram of the adjustment component of this utility model.

[0024] Figure 4 This is an exploded structural diagram of the load-bearing component of this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the limiting pin of this utility model.

[0026] In the diagram, 1. Pump body; 2. Adjustment assembly; 201. Mounting base; 202. Auxiliary base; 203. Limiting plate; 204. Movable block; 205. Threaded rod; 206. Threaded sleeve; 207. Fixed plate; 208. Limiting rod; 209. Fixed block; 210. Transmission block; 3. Bearing assembly; 301. Limiting seat; 302. Limiting pin; 303. Rotating rod; 304. Extension seat; 305. Mounting block; 306. Clamping plate; 307. Insert rod; 308. Fixed seat; 309. Spring. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Example 1

[0029] Reference Figure 1 , Figure 2 and Figure 3This is the first embodiment of the present utility model. This embodiment provides an adjustable negative pressure quantitative output pump, including a pump body 1, an adjusting component 2 at the bottom of the pump body 1, and a bearing component 3 on both sides of the pump body 1.

[0030] Adjustment component 2 includes a mounting base 201 hinged to the bottom of pump body 1. Auxiliary seats 202 are provided on both sides of the mounting base 201. A fixing plate 207 is installed on the upper surface of the auxiliary seat 202. A threaded sleeve 206 is fixedly installed inside the fixing plate 207. A threaded rod 205 is engaged inside the threaded sleeve 206. A movable block 204 is movably connected to one end of the threaded rod 205 near the pump body 1. A transmission block 210 is provided above the auxiliary seat 202. A fixing block 209 is fixedly installed on the outer surface of the pump body 1. The fixing block 209 is hinged to the transmission block 210.

[0031] Specifically, two limiting plates 203 are installed on the upper surface of the auxiliary seat 202. Limiting protrusions are provided on the adjacent surfaces of the two limiting plates 203. The outer surface of the transmission block 210 is provided with a limiting groove that cooperates with the limiting protrusions. The transmission block 210 is movably connected between the two limiting plates 203 through the cooperation of the limiting groove and the limiting protrusions. Through the cooperation of the limiting plates 203 and the limiting protrusions, the movement of the transmission block 210 perpendicular to the upper surface of the auxiliary seat 202 can be limited, and the transmission block 210 cannot be disengaged from the limiting plates 203.

[0032] Specifically, the bottom of the transmission block 210 and the outer surface of the movable block 204 are provided with mutually cooperating inclined surfaces. By setting the inclined surfaces, when the movable block 204 moves toward one side of the pump body 1, it can drive the transmission block 210 to rise, thereby lifting the fixed block 209 above, so as to adjust the height on one side and thus adjust the levelness.

[0033] Specifically, two limiting rods 208 are fixedly installed on the side of the fixed plate 207 near the pump body 1. The outer surface of the movable block 204 is provided with a socket for the limiting rods 208. Through the cooperation of the limiting rods 208 and the socket, the movable block 204 is limited to move linearly, thus preventing the movable block 204 from deviating.

[0034] Furthermore, a feed inlet is provided on one side of the pump body 1, and a discharge outlet is provided on the outer surface of the pump body 1 away from the feed inlet. Two auxiliary seats 202 are respectively located directly below the feed inlet and the discharge outlet. By rotating the threaded rod 205, the movable block 204 is moved, thereby pressing the transmission block 210 through the movable block 204. The height of the transmission block 210 can be adjusted by the inclined surface of the outer surface of the movable block 204 and the transmission block 210. During the adjustment process, the auxiliary seats 202 need to be pressed simultaneously to keep the auxiliary seats 202 on the outer surface of the frame, but... The auxiliary seat 202 can move axially to the extent required by the pressure required to move on the outer surface of the frame. The upward movement of the transmission block 210 drives the fixed block 209 to rise, thereby lifting the tilt side of the pump body 1 and adjusting the level of the pump body 1. The thread helix angle of the thread on the outer surface of the threaded rod 205 is less than the friction angle, so that the engagement between the threaded rod 205 and the threaded sleeve 206 can achieve self-locking. The self-locking setting of the thread on the outer surface of the threaded rod 205 is prior art and common knowledge known to those skilled in the art, and will not be elaborated on here.

[0035] Example 2

[0036] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The supporting component 3 includes a fixed seat 308 fixedly installed on the outer surface of the pump body 1. A limiting seat 301 is installed below the fixed seat 308. An extension seat 304 is provided at the end of the fixed seat 308 away from the pump body 1. Two clamping plates 306 are provided above the extension seat 304. A rotating rod 303 is hinged to the bottom of the extension seat 304. Two limiting pins 302 are provided inside the bottom end of the rotating rod 303. A spring 309 is installed between the two limiting pins 302.

[0037] Specifically, an mounting block 305 is installed on the upper surface of the extension seat 304, and two clamping plates 306 are hinged to the top of the mounting block 305. Two insert rods 307 are installed on the side of the extension seat 304 near the fixed seat 308. The outer surface of the fixed seat 308 is provided with blind holes that cooperate with the insert rods 307. An extension block is provided on the top of the clamping plate 306. The extension blocks on the top of the two clamping plates 306 are connected by bolts and nuts, thereby realizing the clamping and fixing of the connecting pipe connected to the pump body 1. Through the cooperation of the insert rods 307 and the blind holes, the linear movement of the extension seat 304 is limited, and it also plays a role in assisting the support of the extension seat 304.

[0038] Specifically, both sides of the bottom of the rotating rod 303 are provided with through holes that cooperate with the limiting pin 302. The outer surface of the limiting seat 301 is provided with a limiting hole that cooperates with the limiting pin 302. The limiting pin 302 can pass through the through hole and cooperate with the limiting hole, thereby limiting the bottom end of the rotating rod 303. The lower surface of the fixed seat 308 is provided with a square groove that cooperates with the limiting seat 301. The side of the rectangular groove near the extension seat 304 is connected to a rectangular groove that cooperates with the rotating rod 303. The groove, through the setting of the rectangular groove, allows the extension seat 304 to move the farthest distance until the rotating rod 303 rotates to a horizontal state, that is, the rotating rod 303 is inserted into the rectangular groove. A connecting rod is installed on the outer surface of the limiting pin 302. A pressing plate is installed on the end of the connecting rod away from the limiting pin 302. A through groove is opened on the outer surface of the rotating rod 303 to cooperate with the connecting rod. The connecting rod passes through the through groove and connects with the pressing plate. The setting of the connecting rod and the pressing plate assists in the retraction of the limiting pin 302.

[0039] Furthermore, both clamping plates 306 are semi-circular arc-shaped. The height of the two clamping plates 306 after they are engaged is at the same height as the inlet and outlet. The extension seat 304 drives the clamping plates 306 to clamp on both sides of the connecting pipe, and the top of the two clamping plates 306 is fixed with bolts to achieve auxiliary clamping of the connecting pipe. Then, the pressing plate is pressed, and the pressing plate retracts the limiting pin 302 through the connecting rod. The rotating rod 303 is rotated, which drives the limiting pin 302 at the bottom of the rotating rod 303 to insert into the inner side of the limiting seat 301. Under the reset action of the spring 309, the limiting pin 302 is driven to insert into the limiting hole on the outer surface of the limiting seat 301, thereby locking the rotating rod 303 and locking the extension distance of the extension seat 304. It also plays an auxiliary support role, achieving auxiliary clamping of the connecting pipe and ensuring that the connecting pipe can remain stable when transmitting materials at the connection part with the pump body 1, avoiding damage to the pump body 1.

[0040] Working principle: When installing the negative pressure quantitative output pump, the pump body 1 is installed in the designated position on the frame through the engagement of the mounting base 201 and bolts, and the auxiliary seats 202 on both sides are inserted into the outer surface of the frame. Then, the level of the pump body 1 is adjusted to ensure that the inlet and outlet are on the same horizontal line. Using tools such as a level, it is observed which side the pump body 1 is tilted to, and then the threaded rod 205 on the corresponding side is adjusted. By rotating the threaded rod 205, the movable block 204 is moved, thereby pressing the transmission block 210 through the movable block 204. The height of the transmission block 210 can be adjusted by setting the inclined surface of the movable block 204 and the outer surface of the transmission block 210. During the adjustment process, the auxiliary seat 202 needs to be pressed simultaneously to keep the auxiliary seat 202 on the outer surface of the frame. However, the pressing force needs to allow the auxiliary seat 202 to move axially on the outer surface of the frame. The upward movement of the transmission block 210 drives the fixed block 209 to rise, thereby lifting the inclined side of the pump body 1 and adjusting the level of the pump body 1. After the adjustment is completed, the auxiliary seat 202 is fixed with bolts. To install pump body 1, adjust the outlet and inlet of pump body 1 to be at the same horizontal level. Then, connect the inlet and outlet of pump body 1 to the connecting pipe respectively. After connection, adjust the extension length of extension seat 304 as needed. Then, rotate the two clamping plates 306 so that the clamping plates 306 clamp the two sides of the connecting pipe. Fix the top of the two clamping plates 306 with bolts to achieve auxiliary clamping of the connecting pipe. Then, press the pressing plate. The pressing plate retracts the limiting pin 302 through the connecting rod and rotates the rotating rod 303 to drive... The limiting pin 302 at the bottom of the rotating rod 303 is inserted into the inner side of the limiting seat 301. After insertion, the pressing plate is released, and under the reset action of the spring 309, the limiting pin 302 is driven to engage with the limiting hole on the outer surface of the limiting seat 301, thereby locking the rotating rod 303 and locking the extension distance of the extension seat 304. It also plays an auxiliary support role, realizing the auxiliary clamping of the connecting pipe, ensuring that the connecting pipe can remain stable when transmitting materials at the connection part with the pump body 1, avoiding damage to the pump body 1, and finally completing the installation and adjustment of the pump body 1.

[0041] It should be noted that in this paper, relational terms such as first and second are used only 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.

Claims

1. A regulating negative pressure quantitative output pump, comprising a pump body (1), characterized in that: An adjustment component (2) is provided at the bottom of the pump body (1), and a bearing component (3) is provided on both sides of the pump body (1). The adjustment assembly (2) includes a mounting base (201) hinged to the bottom of the pump body (1). Auxiliary seats (202) are provided on both sides of the mounting base (201). A fixing plate (207) is installed on the upper surface of the auxiliary seat (202). A threaded sleeve (206) is fixedly installed inside the fixing plate (207). A threaded rod (205) is engaged inside the threaded sleeve (206). A movable block (204) is movably connected to one end of the threaded rod (205) near the pump body (1). A transmission block (210) is provided above the auxiliary seat (202). A fixing block (209) is fixedly installed on the outer surface of the pump body (1). The fixing block (209) is hinged to the transmission block (210). The supporting component (3) includes a fixed seat (308) fixedly installed on the outer surface of the pump body (1). A limiting seat (301) is installed below the fixed seat (308). An extension seat (304) is provided at the end of the fixed seat (308) away from the pump body (1). Two clamping plates (306) are provided above the extension seat (304). A rotating rod (303) is hinged below the extension seat (304). Two limiting pins (302) are provided inside the bottom end of the rotating rod (303). A spring (309) is installed between the two limiting pins (302).

2. The adjustable negative pressure quantitative output pump according to claim 1, characterized in that: The upper surface of the auxiliary seat (202) is equipped with two limiting plates (203). Each of the adjacent surfaces of the two limiting plates (203) is provided with a limiting protrusion. The outer surface of the transmission block (210) is provided with a limiting groove that cooperates with the limiting protrusion. The transmission block (210) is movably connected between the two limiting plates (203) through the cooperation of the limiting groove and the limiting protrusion.

3. The regulated negative pressure metering pump of claim 2, wherein: The bottom of the transmission block (210) and the outer surface of the movable block (204) are both provided with mutually cooperating inclined surfaces.

4. The regulated negative pressure metering pump of claim 3, wherein: Two limiting rods (208) are fixedly installed on the side of the fixed plate (207) near the pump body (1), and the outer surface of the movable block (204) is provided with insertion holes that cooperate with the limiting rods (208).

5. The regulated negative pressure metering pump of claim 1, wherein: An mounting block (305) is installed on the upper surface of the extension seat (304), and the two clamping plates (306) are hinged to the top of the mounting block (305). Two insert rods (307) are installed on the side of the extension seat (304) near the fixed seat (308). The outer surface of the fixed seat (308) is provided with blind holes that cooperate with the insert rods (307).

6. The regulated negative pressure metering pump of claim 5, wherein: Both sides of the bottom of the rotating rod (303) are provided with through holes that cooperate with the limiting pin (302), and the outer surface of the limiting seat (301) is provided with a limiting hole that cooperates with the limiting pin (302).

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