Pressure switch for starting water pump

Abstract

The utility model discloses a pressure switch for starting a water pump, which belongs to the technical field of water pump control devices and comprises a box body, a control switch assembly is mounted on the right side of the top of the box body, a pressure gauge assembly is arranged at the top of the box body, and fixing bolts are inserted into four corners of the pressure gauge assembly. The four sets of fixing bolts are in threaded connection with the top of the box body, connecting mechanisms are symmetrically mounted on the front side and the rear side of the box body, a mounting mechanism is arranged at the bottom of the box body, a fixing mechanism is arranged on the left side of the front of the mounting mechanism, and supporting plates are fixedly connected to the left side and the right side of the bottom of the mounting mechanism; the four corners of the pressure gauge assembly are provided with threaded grooves matched with the four sets of fixing bolts respectively, the connecting mechanism comprises a connecting plate, and a connecting groove is formed in the left side of the connecting plate, and the problem that the disassembly speed is limited when the water pump pressure switch is overhauled and maintained due to the fact that the base and the shell are connected through the bolts is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump control devices, in particular to a pressure switch used for starting a water pump. Background Art

[0002] The pressure switch for water pump start is a device used to control the operation of the water pump, and plays a key role in starting and stopping the water pump. The working principle of the pressure switch is: when the water pump is running, water passes through the valve body of the pressure switch, causing the diaphragm in the valve body to displace, thereby driving the switch action and sending a switch signal. During the operation of the water pump, the pressure switch can monitor the pressure changes at the inlet and outlet of the water pump. When the inlet and outlet pressures reach the preset value, the pressure switch will automatically shut down the water pump to avoid overpressure damage to the water pump. At the same time, the pressure switch can also monitor the leakage of the water pump. When the water pump leaks, the pressure switch will automatically stop the water pump to protect the water pump.

[0003] For example, a large-load water pump pressure switch with the publication number CN219388181U includes a housing, a control switch assembly is installed on one side of the upper side of the housing, a first fixing bolt is threadedly connected to the other side of the upper side of the housing, a pressure gauge assembly is threadedly connected to the first fixing bolt, a second fixing bolt is threadedly connected to the bottom of the housing, the second fixing bolt is threadedly connected to the base, a support base is fixedly connected to one side of the bottom of the base, and a mounting base is fixedly connected to the other side of the base. The utility model detects the water pressure by setting a pressure gauge assembly, the utility model sets a control switch assembly, and controls the start and stop of the water pump according to the pressure value displayed on the pressure gauge assembly, the utility model opens threaded connection holes on both sides of the housing, and uses the second fixing bolt to thread the base and the housing, which is easy to disassemble and install. When the staff needs to inspect and maintain this large-load water pump pressure switch, it can be quickly disassembled.

[0004] However, since the base and the housing are connected by bolts, the speed of disassembly is limited when the water pump pressure switch is inspected and maintained. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims to provide a pressure switch for starting a water pump, which can solve the problem of limited disassembly speed when the water pump pressure switch is inspected and maintained by connecting the base and the housing by bolts.

[0007] In order to solve the above technical problems, the utility model provides a pressure switch for starting a water pump, adopting the following technical scheme: comprising a box body, a control switch assembly is installed on the top right side of the box body, a pressure gauge assembly is provided on the top of the box body, fixing bolts are inserted at the four corners of the pressure gauge assembly, four groups of the fixing bolts are screwed on the top of the box body, connecting mechanisms are symmetrically installed on the front and back sides of the box body, a mounting mechanism is provided at the bottom of the box body, a fixing mechanism is provided on the front left side of the mounting mechanism, and support plates are fixedly connected to the left and right sides of the bottom of the mounting mechanism.

[0008] Optionally, threaded grooves matching four sets of fixing bolts are respectively formed at four corners of the pressure gauge assembly.

[0009] By adopting the above technical solution, the pressure gauge assembly is fixed.

[0010] Optionally, the connecting mechanism includes a connecting plate, and a connecting groove is formed on the left side of the connecting plate.

[0011] By adopting the above technical solution, the box body is fixed.

[0012] Optionally, the mounting mechanism includes a mounting plate, a screw cavity is defined in the mounting plate, and the fixing mechanism is disposed in the screw cavity.

[0013] By adopting the above technical solution, the fixing mechanism is installed.

[0014] Optionally, the fixing mechanism includes a fixed screw, the left side of the fixed screw is rotatably connected in the screw cavity, the right side of the fixed screw passes through the mounting plate, the right side of the fixed screw is fixedly connected to a handle, the fixed screw is a forward and reverse screw, two groups of movable plates are screwed on the fixed screw, the two groups of movable plates are slidably connected in the screw cavity, the tops of the two groups of movable plates are fixedly connected with skateboards, the mounting plate is provided with skateboard cavities matching the two groups of skateboards, the two groups of skateboards are respectively slidably connected in the two groups of skateboard cavities, fixed plates are symmetrically installed on the tops of the two groups of skateboards, and the mounting plate is provided with fixed plate cavities matching the two groups of fixed plates.

[0015] By adopting the above technical solution, the two groups of connection mechanisms are limited.

[0016] Optionally, the bottoms of the two groups of support plates are fixedly connected to the limiting plates, and the two groups of limiting plates are provided with limiting grooves.

[0017] By adopting the above technical solution, the entire device is fixed.

[0018] In summary, the utility model includes at least one of the following beneficial effects: by arranging the connection mechanism to cooperate with the fixing mechanism, it is more convenient and quick to disassemble the water pump pressure switch during inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection mechanism structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the installation mechanism of the utility model.

[0023] Explanation of the accompanying drawings: 1. Box body; 2. Control switch assembly; 3. Pressure gauge assembly; 4. Fixing bolt; 5. Connecting mechanism; 501. Connecting plate; 502. Connecting groove; 6. Mounting mechanism; 601. Mounting plate; 602. Screw rod cavity; 603. Slide plate cavity; 604. Fixed plate cavity; 7. Fixing mechanism; 701. Fixed screw rod; 702. Handle; 703. Moving plate; 704. Slide plate; 705. Fixed plate; 8. Support plate; 9. Limiting plate. Implementation

[0024] The following is combined with Figure 1-3 The utility model is described in further detail.

[0025] Embodiment 1, refer to Figure 1 In order to solve the problem of limited disassembly speed when the water pump pressure switch is inspected and maintained by connecting the base and the shell by bolts in this embodiment, the utility model discloses a pressure switch for starting a water pump, including a box body 1, a control switch assembly 2 is installed on the top right side of the box body 1, a pressure gauge assembly 3 is provided on the top of the box body 1, fixing bolts 4 are inserted at the four corners of the pressure gauge assembly 3, four groups of fixing bolts 4 are screwed on the top of the box body 1, connecting mechanisms 5 are symmetrically installed on the front and back sides of the box body 1, a mounting mechanism 6 is provided at the bottom of the box body 1, a fixing mechanism 7 is provided on the front left side of the mounting mechanism 6, and support plates 8 are fixedly connected to the left and right sides of the bottom of the mounting mechanism 6.

[0026] Based on the above features, the working principle of this embodiment is: the pressure gauge assembly 3 is used to detect the water pressure, and the start and stop of the water pump are adjusted according to the pressure value displayed on the pressure gauge assembly 3, so as to achieve the effect of adjusting according to the situation when the water pump load is large. The control switch assembly 2 is circular, and the control switch assembly 2 and the pressure gauge assembly 3 are both located at the top of the box body 1. The pressure gauge assembly 3 is fixed by four groups of fixing bolts, and the two groups of support plates 8 at the bottom of the mounting mechanism 6 support the box body 1. The fixing mechanism 7 is rotated, and the fixing mechanism 7 cancels the fixation of the two groups of connecting mechanisms 5. When the box body 1 is moved upward and the box body 1 is disassembled, the box body 1 is placed on the top of the mounting mechanism 6 during assembly, and the fixing mechanism 7 is rotated in the opposite direction to fix the two groups of connecting mechanisms 5. The box body 1 is fixed to the mounting mechanism 6 to complete the assembly.

[0027] Example 2, refer to Figure 2-3 In this embodiment, in order to solve the problem of limited disassembly speed when the water pump pressure switch is inspected and maintained by connecting the base and the housing through bolts, based on the same concept as the above-mentioned embodiment 1, the pressure switch for starting the water pump also includes a pressure gauge assembly 3, four corners of which are respectively provided with threaded grooves adapted to four groups of fixing bolts 4, the connecting mechanism 5 includes a connecting plate 501, a connecting groove 502 is provided on the left side of the connecting plate 501, the mounting mechanism 6 includes a mounting plate 601, a screw cavity 602 is provided in the mounting plate 601, and a fixing mechanism 7 is arranged in the screw cavity 602, and the fixing mechanism 7 includes a fixing screw 701, the left side of the fixing screw 701 is rotatably connected in the screw cavity 602, and the right side of the fixing screw 701 passes through the mounting plate 601, a handle 702 is fixedly connected to the right side of the fixed screw rod 701, the fixed screw rod 701 is a forward and reverse screw rod, two groups of movable plates 703 are screwed on the fixed screw rod 701, the two groups of movable plates 703 are slidably connected in the screw rod cavity 602, the tops of the two groups of movable plates 703 are fixedly connected with slide plates 704, the mounting plate 601 is provided with slide plate cavities 603 adapted to the two groups of slide plates 704, the two groups of slide plates 704 are respectively slidably connected in the two groups of slide plate cavities 603, fixed plates 705 are symmetrically installed on the tops of the two groups of slide plates 704, the mounting plate 601 is provided with fixed plate cavities 604 adapted to the two groups of fixed plates 705, the bottoms of the two groups of support plates 8 are fixedly connected with limit plates 9, and limit grooves are provided on the two groups of limit plates 9.

[0028] Based on the above features, the working principle of this embodiment is: when the box body 1 needs to be disassembled, the handle 702 is turned, the handle 702 drives the fixed screw rod 701 to rotate, and the fixed screw rod 701 drives the two groups of movable plates 703 to rotate respectively. Under the limit of the screw rod cavity 602, the two groups of movable plates 703 move closer to each other, the two groups of movable plates 703 drive the two groups of slide plates 704 to move closer to each other, and the two groups of slide plates 704 drive the two groups of fixed plates 705 to move closer to each other, and the two groups of movable plates 705 move from the two groups of connecting grooves 502 to the fixed plate cavity 604 respectively, and the box body 1 is pulled upward, and the box body 1 drives the two groups of connecting plates 501 to move , complete disassembly, during assembly, place the box body 1 on the top of the mounting plate 601, rotate the handle 702 in the opposite direction, the handle 702 drives the fixed screw rod 701 to rotate, the fixed screw rod 701 drives the two sets of movable plates 703 to rotate, under the limit of the screw rod cavity 602, the two sets of movable plates 703 move away from each other, the two sets of movable plates 703 respectively drive the two sets of slide plates 704 to move away from each other, the two sets of slide plates 704 respectively drive the two sets of fixed plates 705 to move away from each other, the two sets of fixed plates 705 respectively move into the two sets of connecting grooves 502, fix the two sets of connecting plates 501, and fix the box body 1 on the top of the mounting plate 601.

[0029] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pressure switch for starting a water pump, comprising a housing (1), characterized in that: A control switch assembly (2) is installed on the right side of the top of the box (1), a pressure gauge assembly (3) is provided on the top of the box (1), fixing bolts (4) are inserted at four corners of the pressure gauge assembly (3), and four groups of fixing bolts (4) are screwed to the top of the box (1), connecting mechanisms (5) are symmetrically installed on the front and rear sides of the box (1), a mounting mechanism (6) is provided at the bottom of the box (1), a fixing mechanism (7) is provided on the left side in front of the mounting mechanism (6), and support plates (8) are fixedly connected to the left and right sides of the bottom of the mounting mechanism (6).

2. A pressure switch for starting a water pump according to claim 1, characterized in that: The four corners of the pressure gauge assembly (3) are respectively provided with threaded grooves adapted to four sets of fixing bolts (4).

3. A pressure switch for starting a water pump according to claim 1, characterized in that: The connection mechanism (5) comprises a connection plate (501), and a connection groove (502) is provided on the left side of the connection plate (501).

4. A pressure switch for starting a water pump according to claim 1, characterized in that: The mounting mechanism (6) comprises a mounting plate (601), a screw cavity (602) is provided in the mounting plate (601), and the fixing mechanism (7) is arranged in the screw cavity (602).

5. A pressure switch for starting a water pump according to claim 4, characterized in that: The fixing mechanism (7) comprises a fixed screw rod (701), the left side of the fixed screw rod (701) is rotatably connected in the screw rod cavity (602), the right side of the fixed screw rod (701) passes through the mounting plate (601), the right side of the fixed screw rod (701) is fixedly connected to a handle (702), the fixed screw rod (701) is a forward and reverse screw rod, and two groups of movable plates (703) are screwed on the fixed screw rod (701), and the two groups of movable plates (703) are slidably connected in the screw rod cavity. In the cavity (602), the tops of the two groups of movable plates (703) are fixedly connected with slide plates (704), the mounting plate (601) is provided with slide plate cavities (603) adapted to the two groups of slide plates (704), the two groups of slide plates (704) are slidably connected in the two groups of slide plate cavities (603), fixed plates (705) are symmetrically installed on the tops of the two groups of slide plates (704), and the mounting plate (601) is provided with fixed plate cavities (604) adapted to the two groups of fixed plates (705).

6. A pressure switch for starting a water pump according to claim 1, characterized in that: The bottoms of the two groups of support plates (8) are fixedly connected to the limiting plates (9), and the two groups of limiting plates (9) are provided with limiting grooves.

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