A machine pump reverse alarm device

Abstract

The utility model discloses a machine pump reverse alarm device, including installing the reverse alarm device body of machine pump's shell outside and with its own pivot extrusion contact, reverse alarm device body includes: installation box, connects machine pump's shell outside. The utility model discloses a series of structure through the setting, is convenient for the stable integration to the intermittent air supply of two air horns when the pivot of machine pump reverse, controls its two automatic intermittent high -pitch alarm work, so that personnel timely know reverse phenomenon and handle in time, and utilize the mechanical type stable drive air supply of screw piece formation, effectively avoid the existing elastic piece of easy to fall out and cause the alarm failure problem of existing, improve use stability, and can utilize the screw lifting vertical guide adjustment assembly of personnel and regularly flexible adjustment antiskid rubber sleeve and pivot extrusion friction degree, reduce the phenomenon of subsequent glue piece aging seriously and can not effectively rub spin drive, improve the follow -up use stability and life.

Description

Technical Field

[0001] This utility model relates to the field of pump reversal alarm technology, specifically a pump reversal alarm device. Background Technology

[0002] In oil refining and chemical plants, centrifugal pumps are commonly used for transmitting process media. Centrifugal pumps are characterized by their simple structure, high transmission efficiency, and ease of maintenance. During normal pump standby, the pump inlet valve remains fully open, while the pump outlet valve is closed. The pressure downstream of the outlet valve is essentially the same as that of the operating pump. This means that the pump outlet pressure is higher than the pump inlet pressure. Therefore, if there is internal leakage or a poor seal in the outlet valve, there is a risk of the process medium flowing from the high-pressure end to the low-pressure end. The pump may then reverse under pressure, causing fluctuations in production. It is difficult for on-duty personnel to detect pump reversal immediately, potentially prolonging the response time and reducing efficiency. Traditional photoelectric signal-based audible and visual alarm systems require continuous power. Once the battery is depleted or there is an unexpected power outage, the alarm function is lost. This means that their use is subject to many limitations and uncertainties, resulting in relatively poor safety.

[0003] Regarding the reverse rotation alarm of the pump, a search revealed that announcement number CN108506239B discloses a pump reverse rotation alarm device, which includes a main shaft, a first bearing, a second bearing, a bell shell, a striking hammer, and a fixed base. The fixed base fixes the bell shell to the pump frame. The inner rings of the first and second bearings are both fitted and fixed to the main shaft. The outer ring of the first bearing is fixedly connected to the bell shell. The second bearing is a one-way bearing with an anti-slip rubber sleeve on its outer ring. The second bearing and the pump shaft are connected by friction transmission through the anti-slip rubber sleeve. When the pump rotates forward, the shaft drives the outer ring of the second bearing to rotate together. When the pump rotates in reverse, the shaft drives the main shaft to rotate together through the second bearing. One end of the striking hammer is fixedly connected to the main shaft, and the other end of the striking hammer is located inside the bell shell. When the main shaft rotates, the striking hammer can hit the protrusion on the inner wall of the bell shell to emit an alarm sound. Its advantages are that it is a purely mechanical automatic alarm device with good sensitivity and stability, high safety, simple structure, small size, convenient installation, and convenient maintenance.

[0004] The aforementioned technology discloses a pump reversal alarm device. By using a one-way bearing as the second bearing, and coordinating with the pump shaft rotation, the main shaft is driven to rotate through friction between rubber and rotating parts. Furthermore, an elastic element and hammer on the main shaft brush the hammer as it rotates, causing it to collide with a bell housing and trigger an alarm. This device requires no power supply. However, it has the following drawbacks in practical use:

[0005] 1. The current method utilizes an elastic element to rotate and swing the hammer head support. However, due to the elasticity of the element and the centrifugal force during rotation, there is a risk that the hammer head may be thrown out of the bell housing by the elastic element, making it difficult to reliably trigger the alarm when the reverse rotation occurs, resulting in poor stability. 2. The lack of a mechanism for periodic adjustment of the extrusion pressure by personnel means that the anti-slip rubber sleeve may age or wear severely over time, preventing effective tightening and adjustment. This can lead to thinning and separation due to aging, preventing the integrated friction drive from functioning properly and causing the alarm to fail. Therefore, this application proposes a pump reverse rotation alarm device to address the aforementioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a pump reversal alarm device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pump reversal alarm device, comprising a reversal alarm device body installed on the outside of the pump casing and in tight contact with its own rotating shaft, the reversal alarm device body comprising:

[0008] The mounting box is connected to the outside of the pump housing;

[0009] The rotating rod is rotatably mounted on the right side of the mounting box. A one-way bearing is fixedly sleeved on its outer side. A turntable is fixedly sleeved on the outer side of the outer ring of the one-way bearing. An anti-slip rubber sleeve is adhesively sleeved on the outer side of the turntable. The top of the anti-slip rubber sleeve is pressed tightly against the bottom of the pump shaft. The anti-slip rubber sleeve is used to rotate together with the shaft by friction when it rotates, which drives the turntable to rotate. The turntable drives the outer ring of the one-way bearing to rotate. When the shaft reverses, the friction drives the turntable to rotate in the other direction. Since the outer ring of the one-way bearing can only rotate independently in one direction, its inner and outer rings are locked at this time. At this time, the pump shaft will drive the rotating rod to rotate together through the anti-slip rubber sleeve, the turntable and the one-way bearing in sequence, realizing the effect of driving the rotating rod to rotate together when the pump shaft reverses.

[0010] The reciprocating thread transverse guide drive assembly is installed between the inner left side wall of the mounting box and the left end of the rotating rod.

[0011] The piston telescopic air supply assembly consists of two sets, which are respectively embedded and fixed on the top right side and the top right side of the mounting box. The two piston telescopic air supply assemblies are fixedly connected to the top and bottom of the reciprocating threaded transverse guide drive assembly, respectively. An air horn is fixedly connected to the right side of the piston telescopic air supply assembly. The reciprocating threaded transverse guide drive assembly is used to drive the two piston telescopic air supply assemblies to move synchronously to the right and left when the rotating rod rotates. The piston telescopic air supply assembly is used to intermittently supply air to the corresponding air horn during the reciprocating right and left movement, so that the air horn is intermittently blown to perform a high-pitched alarm reminder.

[0012] Preferably, the mounting box is installed on the outside of the pump housing. Two threaded grooves are opened at the bottom right side of the pump housing, and fixing bolts are screwed into the threaded grooves. Two fixing ears are fixedly connected to the top left side of the mounting box, and the fixing ears are movably sleeved on the corresponding fixing bolts.

[0013] Preferably, the mounting box is vertically and movably connected to the outside of the pump housing, and the mounting box is in movable contact with the outside of the pump housing. A threaded lifting vertical guide adjustment assembly is fixedly connected between the bottom of the mounting box and the bottom of the pump housing. The threaded lifting vertical guide adjustment assembly is used to drive the mounting box to move vertically up and down. The mounting box, through a rotating rod, a one-way bearing, and a turntable, drives the anti-slip rubber sleeve to move up and down for adjustment, thereby achieving the effect of vertically adjusting the squeezing friction force between the anti-slip rubber sleeve and the bottom of the rotating shaft. The adjustable squeezing friction force facilitates flexible adjustment when the anti-slip rubber sleeve ages or wears severely after long-term use, preventing effective squeezing and grinding movement.

[0014] Preferably, the threaded lifting vertical guide adjustment assembly includes an L-shaped support, two vertical guide rods, and a T-shaped screw. The L-shaped support is fixedly connected to the bottom right side of the pump housing, and the two vertical guide rods are fixedly connected to the bottom of the mounting box. The L-shaped support is slidably sleeved on the two vertical guide rods, and the T-shaped screw is rotatably installed at the bottom of the mounting box. The bottom of the L-shaped support has a threaded hole for threaded connection with the T-shaped screw.

[0015] Preferably, the reciprocating threaded transverse guide drive assembly includes a reciprocating screw, a reciprocating threaded sleeve, two transverse guide rods, and two transverse guide sleeves. The reciprocating screw is rotatably mounted on the inner left side of the mounting box. The right end of the reciprocating screw is fixedly connected to the left end of the rotating rod. The reciprocating threaded sleeve is threaded onto the reciprocating screw. Both transverse guide rods are fixedly connected to the inner left side of the mounting box. The two transverse guide sleeves are slidably mounted on the corresponding transverse guide rods. The two transverse guide sleeves are fixedly connected to the top and bottom of the reciprocating threaded sleeve, respectively.

[0016] Preferably, the piston telescopic air supply assembly includes a circular sleeve, a piston block, and an L-shaped connecting rod. The circular sleeve is embedded and fixed on the right side of the mounting box. The right side of the circular sleeve is configured as a sealing structure and is connected and fixed to the corresponding air horn blowing port. The piston block is sealed and slidably sleeved inside the corresponding circular sleeve. The right end of the L-shaped connecting rod is fixedly connected to the left side of the corresponding piston block. The near ends of the two L-shaped connecting rods are respectively fixedly connected to the opposing sides of the two transverse guide sleeves. A one-way valve with an outlet on the front side is connected and fixedly fixed on the right side of the rear side of the circular sleeve. The rear side of the one-way valve is an air inlet and is connected and fixedly fixedly fixed with a filter screen.

[0017] Preferably, two sealing rings are bonded to the piston block, and the outer side of the sealing ring slides and fits tightly against the inner side of the corresponding circular sleeve.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By cooperating with the mounting box, rotating rod, one-way bearing, turntable, anti-slip rubber sleeve, reciprocating threaded transverse guide drive assembly and piston telescopic air supply assembly, it can stably and integrally supply air to the two air horns intermittently when the pump shaft reverses, thereby controlling the automatic intermittent high-pitched alarm of both, so that personnel can be notified of the reversal phenomenon in time and deal with it in time.

[0020] Furthermore, the mechanical stable drive for air supply formed by the threaded parts effectively avoids the problem of alarm failure caused by easy dislodgement of existing elastic parts, thus improving the stability of use;

[0021] 2. By using a threaded lifting vertical guide adjustment component and mounting box in a different manner, personnel can periodically and flexibly adjust the squeezing friction force between the anti-slip rubber sleeve and the rotating shaft. This reduces the phenomenon that the anti-slip rubber sleeve will age or wear severely after long-term use, thus preventing it from effectively performing friction rotation and improving the stability and lifespan of subsequent use.

[0022] This invention features a series of structures that allow for stable, intermittent air supply to two air horns when the pump shaft reverses, controlling their automatic, intermittent, high-pitched alarm operation. This ensures timely notification and intervention for personnel to detect and address the reversal. The mechanically stable air supply via threaded components effectively avoids the problem of alarm failure caused by the easy dislodgement of existing elastic components, improving operational stability. Furthermore, the threaded lifting vertical guide adjustment component allows for periodic and flexible adjustment of the clamping friction between the anti-slip rubber sleeve and the shaft, reducing the likelihood of subsequent aging of the rubber components and ineffective friction during rotation, thus improving subsequent operational stability and lifespan. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a pump reversal alarm device according to Embodiment 1 of this utility model;

[0024] Figure 2 This is a schematic diagram of the main cross-sectional structure of a pump reversal alarm device according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a pump reversal alarm device according to Embodiment 2 of this utility model;

[0026] Figure 4 This is a front sectional view of a pump reversal alarm device according to Embodiment 2 of this utility model.

[0027] In the diagram: 100, pump; 101, shaft; 2, mounting box; 201, rotating rod; 202, one-way bearing; 203, turntable; 204, anti-slip rubber sleeve; 3, reciprocating screw; 301, reciprocating sleeve; 302, horizontal guide rod; 303, horizontal guide sleeve; 4, L-shaped connecting rod; 401, circular sleeve; 402, piston block; 403, air horn; 5, L-shaped support; 501, vertical guide rod; 502, T-shaped screw. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figures 1 to 2 As shown, this embodiment proposes a pump reversal alarm device, which includes a reversal alarm device body installed on the outside of the pump housing and in tight contact with its own rotating shaft 101. The reversal alarm device body includes:

[0031] Mounting box 2 is connected to the outside of the housing of pump 100;

[0032] The rotating rod 201 is rotatably mounted on the right side of the mounting box 2. A one-way bearing 202 is fixedly sleeved on its outer side. A turntable 203 is fixedly sleeved on the outer side of the outer ring of the one-way bearing 202. An anti-slip rubber sleeve 204 is adhesively sleeved on the outer side of the turntable 203. The top of the anti-slip rubber sleeve 204 is pressed tightly against the bottom of the rotating shaft 101 of the pump 100. The anti-slip rubber sleeve 204 is designed to rotate due to friction when the rotating shaft 101 rotates, thereby driving the turntable 203 to rotate. The turntable 203 drives the one-way bearing 202. When the outer ring of the pump 100 rotates, and the rotating shaft 101 reverses, the friction drives the turntable 203 to rotate in the other direction. Since the outer ring of the one-way bearing 202 can only rotate independently in one direction, its inner and outer rings are locked at this time. At this time, the rotating shaft 101 of the pump 100 will drive the rotating rod 201 to rotate as a whole through the anti-slip rubber sleeve 204, the turntable 203 and the one-way bearing 202 in sequence, so as to achieve the effect of driving the rotating rod 201 to rotate as a whole when the rotating shaft 101 of the pump 100 reverses.

[0033] The reciprocating thread transverse guide drive assembly is installed between the left inner wall of the mounting box 2 and the left end of the rotating rod 201;

[0034] The piston telescopic air supply assembly consists of two sets, which are respectively embedded and fixed on the top right side and the top right side of the mounting box 2. The two piston telescopic air supply assemblies are respectively fixedly connected to the top and bottom of the reciprocating threaded transverse guide drive assembly. The right side of the piston telescopic air supply assembly is connected and fixedly equipped with an air horn 403. The reciprocating threaded transverse guide drive assembly is used to drive the two piston telescopic air supply assemblies to move synchronously to the right and left when the rotating rod 201 rotates. The piston telescopic air supply assembly is used to intermittently supply air to the corresponding air horn 403 during the reciprocating right and left movement, so that the air horn 403 is intermittently blown to perform a high-pitched alarm reminder.

[0035] In this embodiment, a circular through hole is provided on the right side of the mounting box 2, and a first bearing is fixedly sleeved in the circular through hole. The inner ring of the first bearing is fixedly sleeved with the outer side of the rotating rod 201, so as to achieve the effect of rotating the rotating rod 201. The right side of the turntable 203 is provided with a fitting hole for fixing the outer side of the outer ring of the one-way bearing 202.

[0036] Furthermore, the mounting box 2 is installed on the outside of the housing of the pump 100. Two threaded grooves are opened on the bottom right side of the housing of the pump 100. Fixing bolts are screwed into the threaded grooves. Two fixing ears are fixedly connected to the top left side of the mounting box 2. The fixing ears are movably sleeved on the corresponding fixing bolts. The mounting box 2 is fixed to the outside of the housing of the pump 100 by the cooperation of the fixing bolts and the threaded grooves.

[0037] Furthermore, such as Figure 2 As shown, the reciprocating threaded transverse guide drive assembly includes a reciprocating screw 3, a reciprocating threaded sleeve 301, two transverse guide rods 302 and two transverse guide sleeves 303. The reciprocating screw 3 is rotatably mounted on the inner left side of the mounting box 2. The right end of the reciprocating screw 3 is fixedly connected to the left end of the rotating rod 201. The reciprocating threaded sleeve 301 is threaded onto the reciprocating screw 3. The two transverse guide rods 302 are fixedly connected to the inner left side of the mounting box 2. The two transverse guide sleeves 303 are slidably mounted on the corresponding transverse guide rods 302. The two transverse guide sleeves 303 are fixedly connected to the top and bottom of the reciprocating threaded sleeve 301, respectively.

[0038] In this embodiment, a second bearing is fixedly connected to the inner left wall of the mounting box 2, and the inner ring of the second bearing is fixedly fitted to the outer side of the reciprocating screw 3, so as to achieve the effect of rotating the reciprocating screw 3.

[0039] In this embodiment, the reciprocating screw 3, the reciprocating sleeve 301, the two horizontal guide rods 302 and the two horizontal guide sleeves 303 cooperate to drive the reciprocating screw 3 to rotate as a whole when the rotating rod 201 rotates. The rotation of the reciprocating screw 3 drives the reciprocating sleeve 301 to move back and forth to the right and left. The reciprocating sleeve 301 drives the two horizontal guide sleeves 303 to slide back and forth to the right and left on the two horizontal guide rods 302.

[0040] Furthermore, such as Figure 1 and 2 As shown, the piston telescopic air supply assembly includes a circular sleeve 401, a piston block 402, and an L-shaped connecting rod 4. The circular sleeve 401 is embedded and fixed on the right side of the mounting box 2. The right side of the circular sleeve 401 is set as a sealing structure and is connected and fixed to the air blowing port of the corresponding air horn 403. The piston block 402 is sealed and slidably sleeved in the corresponding circular sleeve 401. The right end of the L-shaped connecting rod 4 is fixedly connected to the left side of the corresponding piston block 402. The near ends of the two L-shaped connecting rods 4 are respectively fixedly connected to the opposing sides of the two horizontal guide sleeves 303. The right rear side of the circular sleeve 401 is connected and fixedly connected to a one-way valve with the front side as the outlet. The rear side of the one-way valve is the air inlet and is connected and fixedly connected to a filter screen.

[0041] In this embodiment, two sealing rings are bonded to the piston block 402. The outer side of the sealing ring slides and fits tightly against the inner side of the corresponding circular sleeve 401, achieving a sliding seal between the outer side of the piston block 402 and the inner side of the corresponding circular sleeve 401. The right side of the mounting box 2 has two fitting holes that are fixedly connected to the outer side of the corresponding circular sleeve 401.

[0042] In this implementation scheme, the circular sleeve 401, piston block 402, and L-shaped connecting rod 4 work together. The two horizontal guide sleeves 303 reciprocate to the right and left, driving the two L-shaped connecting rods 4 to reciprocate to the right and left. The L-shaped connecting rods 4 drive the corresponding piston block 402 to slide back and forth to the right and left within the circular sleeve 401. When the piston block 402 moves to the right, it compresses the gas inside the corresponding circular sleeve 401. Under the compressive force, the gas is blown into the corresponding air horn 403. When the piston block 402 moves back to the left, it draws in external gas through the corresponding one-way valve and supplies it into the circular sleeve 401. By using the reciprocating right and left movement of the piston block 402, the corresponding air horn 403 is intermittently supplied with gas, causing it to emit an intermittent high-pitched alarm, so that personnel can be notified of the reversal phenomenon in time and take timely action.

[0043] This embodiment facilitates the intermittent supply of air to the two air horns 403 in a stable integrated manner when the shaft 101 of the pump 100 reverses, thereby controlling the automatic intermittent high-pitched alarm of both horns. This allows personnel to be notified of the reversal phenomenon in a timely manner and take appropriate action. Furthermore, the mechanical stable drive for air supply formed by the threaded parts effectively avoids the problem of alarm failure caused by the easy dislodgement of existing elastic parts, thus improving the stability of use.

[0044] The usage method of this embodiment is as follows: When the pump reverse rotation alarm device is in use, the anti-slip rubber sleeve 204 and the rotating shaft 101 are squeezed and frictionally driven to rotate together when the rotating shaft 101 of the pump 100 rotates. The anti-slip rubber sleeve 204 drives the turntable 203 to rotate, and the turntable 203 drives the outer ring of the one-way bearing 202 to rotate independently. When the rotating shaft 101 reverses, the friction drives the turntable 203 to rotate in the other direction. Since the outer ring of the one-way bearing 202 can only rotate in one direction independently... The pump rotates on its own, so its inner and outer rings are locked at this time. The rotating shaft 101 of the pump 100 will then drive the rotating rod 201 to rotate as a whole via the anti-slip rubber sleeve 204, the turntable 203, and the one-way bearing 202. This achieves the effect of driving the rotating rod 201 to rotate as a whole when the pump shaft 101 rotates in reverse. When the rotating rod 201 rotates, it drives the reciprocating screw 3 to rotate as a whole. The rotation of the reciprocating screw 3 drives the reciprocating sleeve 301 to move back and forth to the right and left. The reciprocating sleeve 301 drives the two transverse guide sleeves 303 on the two transverse guide rods 302. The piston slides back and forth to the right and left, using the two horizontal guide sleeves 303 to move back and forth to the right and left, thereby driving the two L-shaped connecting rods 4 to move back and forth to the right and left. The L-shaped connecting rods 4 drive the corresponding piston block 402 to slide back and forth to the right and left within the circular sleeve 401. When the piston block 402 moves to the right, it compresses the gas inside the corresponding circular sleeve 401. Under the compression force, the gas is blown into the corresponding air horn 403. When the piston block 402 moves back to the left, it draws in external gas through the corresponding one-way valve and supplies it into the circular sleeve 401. The reciprocating right and left movement intermittently supplies air to the corresponding air horn 403, causing it to emit an intermittent high-pitched alarm. This ensures that when the shaft 101 of the pump 100 reverses, the system stably and integrally supplies air to both air horns 403 to control their automatic intermittent high-pitched alarm operation. This allows personnel to be promptly notified of the reversal and take timely action. Furthermore, the mechanically stable air supply driven by the threaded components effectively avoids the problem of alarm failure caused by the easy dislodgement of existing elastic components, thus improving operational stability.

[0045] Example 2

[0046] like Figures 3 to 4As shown, this embodiment differs from Embodiment 1 in that: the mounting box 2 is vertically and movably connected to the outside of the housing of the pump 100, and the mounting box 2 is in movable contact with the outside of the housing of the pump 100. A threaded lifting vertical guide adjustment assembly is fixedly connected between the bottom of the mounting box 2 and the bottom of the housing of the pump 100. The threaded lifting vertical guide adjustment assembly is used to drive the mounting box 2 to move vertically. The mounting box 2 drives the anti-slip rubber sleeve 204 to move up and down through the rotating rod 201, the one-way bearing 202 and the turntable 203 in sequence, so as to achieve the effect of vertically adjusting the squeezing friction force between the anti-slip rubber sleeve 204 and the bottom of the rotating shaft 101. The adjustable squeezing friction force makes it convenient to make flexible adjustments when the anti-slip rubber sleeve 204 ages or wears out after long-term use, resulting in the inability to effectively squeeze and grind in one motion.

[0047] The threaded lifting vertical guide adjustment assembly includes an L-shaped support 5, two vertical guide rods 501 and a T-shaped screw 502. The L-shaped support 5 is fixedly connected to the bottom right side of the housing of the pump 100. The two vertical guide rods 501 are fixedly connected to the bottom of the mounting box 2. The L-shaped support 5 is slidably sleeved on the two vertical guide rods 501. The T-shaped screw 502 is rotatably installed at the bottom of the mounting box 2. The bottom of the L-shaped support 5 has a threaded hole for threaded connection with the T-shaped screw 502.

[0048] In this embodiment, the bottom of the mounting box 2 is fixedly connected to a third bearing, and the inner side of the inner ring of the third bearing is fixedly connected to the outer side of the T-shaped screw 502, so as to achieve the effect of rotating and installing the T-shaped screw 502; the bottom of the L-shaped support 5 has two vertical guide holes that are respectively slidably fitted to the outer side of the corresponding vertical guide rod 501, so as to allow the vertical guide rod 501 to pass through and guide its vertical sliding.

[0049] It should be noted that the L-shaped support 5, the two vertical guide rods 501 and the T-shaped screw 502 are preferably made of stainless steel. The T-shaped screw 502 has a high wear-resistant load-bearing specification with an outer thread clearance of 0.7-1.5mm. The stainless steel material has the advantages of high hardness, high wear resistance and good maintenance-free effect, which ensures the stability of long-term connection and drive support.

[0050] This embodiment allows personnel to periodically and flexibly adjust the squeezing friction force between the anti-slip rubber sleeve 204 and the rotating shaft 101, reducing the phenomenon that the anti-slip rubber sleeve 204 will age or wear severely after long-term use, thus preventing it from effectively performing friction rotation and improving subsequent use stability and lifespan.

[0051] The usage method of this embodiment is as follows: Unlike Embodiment 1, this embodiment also has the following functions: Users can periodically rotate the T-shaped screw 502 in the forward direction. The T-shaped screw 502 rotates and moves upward within the threaded hole, causing the mounting box 2 to move upward. The mounting box 2 then drives the two vertical guide rods 501 to slide vertically within the vertical guide holes on the L-shaped support 5, performing vertical guiding work. The mounting box 2, through the rotating rod 201, one-way bearing 202, and turntable 203, sequentially moves the anti-slip rubber sleeve 204 upward for adjustment. This allows for vertical adjustment of the squeezing friction force between the anti-slip rubber sleeve 204 and the bottom of the rotating shaft 101, facilitating periodic adjustment of the squeezing friction force between the anti-slip rubber sleeve 204 and the rotating shaft 101. This reduces the likelihood of the anti-slip rubber sleeve 204 aging or becoming severely worn after prolonged use, thus improving subsequent stability and lifespan.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pump reversal alarm device, comprising a reversal alarm device body installed on the outside of the pump casing (100) and in tight contact with its own rotating shaft (101), characterized in that: The reversal alarm device body includes: Mounting box (2) is connected to the outside of the housing of the pump (100); The rotating rod (201) is rotatably embedded on the right side of the mounting box (2). A one-way bearing (202) is fixedly sleeved on its outer side. A turntable (203) is fixedly sleeved on the outer side of the outer ring of the one-way bearing (202). An anti-slip rubber sleeve (204) is adhesively sleeved on the outer side of the turntable (203). The top of the anti-slip rubber sleeve (204) is pressed tightly against the bottom of the rotating shaft (101) of the pump (100). The reciprocating thread transverse guide drive assembly is installed between the inner left side of the mounting box (2) and the left end of the rotating rod (201); The piston telescopic air supply assembly consists of two sets, which are respectively embedded and fixed on the top right side and the top right side of the mounting box (2). The two piston telescopic air supply assemblies are respectively fixedly connected to the top and bottom of the reciprocating threaded transverse guide drive assembly. An air horn (403) is fixedly connected to the right side of the piston telescopic air supply assembly.

2. The pump reversal alarm device according to claim 1, characterized in that: The mounting box (2) is installed on the outside of the housing of the pump (100). Two threaded grooves are opened on the bottom right side of the housing of the pump (100). Fixed bolts are screwed into the threaded grooves. Two fixed ears are fixedly connected to the top left side of the mounting box (2). The fixed ears are movably sleeved on the corresponding fixed bolts.

3. The pump reversal alarm device according to claim 1, characterized in that: The mounting box (2) is vertically connected to the outside of the housing of the pump (100). The mounting box (2) is in movable contact with the outside of the housing of the pump (100). A threaded lifting vertical guide adjustment assembly is fixedly connected between the bottom of the mounting box (2) and the bottom of the housing of the pump (100).

4. The pump reversal alarm device according to claim 3, characterized in that: The threaded lifting vertical guide adjustment assembly includes an L-shaped support (5), two vertical guide rods (501) and a T-shaped screw (502). The L-shaped support (5) is fixedly connected to the bottom right side of the housing of the pump (100). The two vertical guide rods (501) are fixedly connected to the bottom of the mounting box (2). The L-shaped support (5) is slidably sleeved on the two vertical guide rods (501). The T-shaped screw (502) is rotatably installed at the bottom of the mounting box (2). The bottom of the L-shaped support (5) is provided with a threaded hole for threaded connection with the T-shaped screw (502).

5. The pump reversal alarm device according to claim 1, characterized in that: The reciprocating threaded transverse guide drive assembly includes a reciprocating screw (3), a reciprocating threaded sleeve (301), two transverse guide rods (302) and two transverse guide sleeves (303). The reciprocating screw (3) is rotatably mounted on the left inner wall of the mounting box (2). The right end of the reciprocating screw (3) is fixedly connected to the left end of the rotating rod (201). The reciprocating threaded sleeve (301) is threaded onto the reciprocating screw (3). The two transverse guide rods (302) are fixedly connected to the left inner wall of the mounting box (2). The two transverse guide sleeves (303) are slidably mounted on the corresponding transverse guide rods (302). The two transverse guide sleeves (303) are fixedly connected to the top and bottom of the reciprocating threaded sleeve (301) respectively.

6. The pump reversal alarm device according to claim 5, characterized in that: The piston telescopic air supply assembly includes a circular sleeve (401), a piston block (402), and an L-shaped connecting rod (4). The circular sleeve (401) is embedded and fixed on the right side of the mounting box (2). The right side of the circular sleeve (401) is set as a sealing structure and is connected and fixed to the air blowing port of the corresponding air horn (403). The piston block (402) is sealed and slidably sleeved in the corresponding circular sleeve (401). The right end of the L-shaped connecting rod (4) is fixedly connected to the left side of the corresponding piston block (402). The near ends of the two L-shaped connecting rods (4) are respectively fixedly connected to the opposing sides of the two horizontal guide sleeves (303). The right rear side of the circular sleeve (401) is connected and fixedly connected to a one-way valve with the front side as the outlet. The rear side of the one-way valve is the air inlet and is connected and fixedly connected to a filter screen.

7. The pump reversal alarm device according to claim 6, characterized in that: Two sealing rings are bonded to the piston block (402), and the outer side of the sealing ring slides and fits tightly against the inner side of the corresponding circular sleeve (401).

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