Diaphragm pump with relay

Abstract

The utility model discloses a diaphragm pump with a relay. The diaphragm pump comprises a transverse pump body and a bottom plate arranged at the bottom of the transverse pump body. The longitudinal front end of the bottom plate extends out of the front side of the transverse pump body and forms a relay mounting plate, a relay protection cover fixedly covers the relay mounting plate, a mounting space with a bottom opening is formed in the relay protection cover, a relay is mounted in the mounting space in a hidden manner, and the relay is electrically connected with the diaphragm pump. By arranging the relay protection cover, the relay can be arranged in the installation space in a covering mode, the bottom of the installation space can be shielded through the relay installation plate, full covering protection of the relay can be achieved, it is guaranteed that the relay is not damaged by liquid invasion, use safety of the relay is guaranteed, and the service life of the diaphragm pump is guaranteed; and the maintenance frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a diaphragm pump with a relay. Background Art

[0002] Diaphragm pumps are common industrial equipment used to transport a variety of liquids, from chemicals to food and even wastewater treatment. In various applications, precise control of the pump's flow rate and pressure is required to ensure proper system operation. Some existing diaphragm pumps are equipped with relays for automatic control and safety protection to meet the needs of various application scenarios.

[0003] However, the existing diaphragm pumps generally have the relays directly exposed and mounted on the diaphragm pumps. Once a liquid leak occurs during the use of the diaphragm pump, the sprayed liquid may splash onto the relays, which may easily damage the relays and cause diaphragm pump failure. Utility Model Content

[0004] The purpose of the utility model is to provide a diaphragm pump with a relay, which has the advantages of protecting the relay and improving the reliability of the diaphragm pump.

[0005] In order to achieve the above objectives, the solution of the present invention is:

[0006] A diaphragm pump with a relay, the diaphragm pump comprising a horizontally placed pump body and a base plate arranged at the bottom of the horizontally placed pump body; the longitudinal front end of the base plate extends out from the front side of the horizontally placed pump body and forms a relay mounting plate, a relay protective cover is fixedly mounted on the relay mounting plate, an installation space with a bottom opening is formed within the relay protective cover, a relay is concealed and installed within the installation space, and the relay is electrically connected to the diaphragm pump.

[0007] Furthermore, the relay protection cover is detachably mounted on the relay mounting plate by using a snap-fit ​​structure and screw locking.

[0008] Furthermore, the clamping structure includes at least two hooks spaced apart from each other and protruding downwardly on the bottom opening edge of the relay protective cover, and a clamping hole on the relay mounting plate corresponding to the clamping hook; the clamping hook is detachably clamped in the clamping hole.

[0009] Furthermore, the bottom of the relay protection cover is provided with at least two lock holes arranged at intervals; the relay mounting plate is provided with through holes corresponding to the lock holes; the screws pass through the through holes and are locked in the lock holes, thereby locking the relay protection cover to the relay mounting plate.

[0010] Furthermore, the side wall of the installation space in the relay protection cover is provided with at least two connecting columns, and the lock hole is arranged in the connecting columns; a relay slot is formed in the middle of the installation space between the connecting columns, and the relay slot is used to embed and fix the relay.

[0011] Furthermore, the bottom opening edge of the relay protection cover is tightly attached to the relay mounting plate; the bottom opening edge of the relay protection cover is also protruding with at least one positioning protrusion, which is positioned and inserted into a corresponding positioning hole on the relay mounting plate.

[0012] Furthermore, the bottom opening edge of the relay protection cover is closely attached to the relay mounting plate; the relay protection cover is provided with a wire hole on the rear side close to the horizontal pump body, and the wire hole is connected to the installation space for wire entry.

[0013] Furthermore, the relay protection cover is hollow inside and has a pyramidal shape that is narrow at the top and wide at the bottom; two hooks are respectively arranged on the left and right sides of the rectangular opening at the bottom of the relay protection cover.

[0014] Furthermore, the horizontal pump body is a pump body motor; the front and rear ends of the base plate in the longitudinal direction both extend out of the front side of the horizontal pump body, and the front and rear ends of the base plate are connected to the connecting base plate for fixing the bottom of the pump body motor; the left and right sides of the front and rear ends of the base plate are respectively provided with support legs, and the relay mounting plate is arranged between the two left and right support legs at the front end of the base plate.

[0015] Furthermore, the horizontally placed pump body is a pump body motor, a pump head is provided at one lateral end of the pump body motor, and a pressure sensing switch connected to the pump head drainage chamber is provided on the pump head; the relay is electrically connected to the pump body motor and the pressure sensing switch.

[0016] After adopting the above technical solution, the relay cover can be placed in the installation space by providing a relay protection cover, and the bottom of the installation space can be shielded by the relay mounting plate, so as to achieve sufficient covering protection for the relay, ensure that the relay is not damaged by liquid intrusion and is not easily damaged by collision, ensure the safe use of the relay, ensure the service life of the diaphragm pump, and reduce the frequency of repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0019] Figure 3 Another perspective view of an embodiment of the present invention;

[0020] Figure 4 A cross-sectional view of an embodiment of the present utility model;

[0021] Figure 5 This is a three-dimensional diagram of a relay protection cover according to an embodiment of the present utility model.

[0022] Explanation of the reference numerals: horizontal pump body 1, base plate 2, relay mounting plate 21, connecting base plate 22, support leg 23, positioning hole 24, relay protective cover 3, installation space 31, relay slot 32, positioning protrusion 33, wire hole 34, relay 4, pump head 5, pressure sensing switch 6, snap-fit ​​structure 7, hook 71, snap hole 72, lock hole 81, through hole 82, connecting column 83, connecting wire 9. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] like Figures 1 to 5 As shown, a diaphragm pump with a relay in this embodiment includes a horizontal pump body 1 and a base plate 2 arranged at the bottom of the horizontal pump body 1; the longitudinal front end of the base plate 2 extends out from the front side of the horizontal pump body 1 and forms a relay mounting plate 21, and a relay protective cover 3 is fixed on the relay mounting plate 21, and an installation space 31 with a bottom opening is formed in the relay protective cover 3, and a relay 4 is hidden and installed in the installation space 31, and the relay 4 is electrically connected to the diaphragm pump.

[0025] In this way, by providing a relay protection cover 3, the relay 4 can be covered in the installation space 31, and the bottom of the installation space 31 can be shielded by the relay mounting plate 21, so that the relay 4 can be fully covered and protected, ensuring that the relay 4 is not damaged by liquid intrusion and is not easily damaged by collision, thereby ensuring the safe use of the relay 4.

[0026] In this embodiment, the horizontally placed pump body 1 is a pump body motor, and a pump head 5 is provided at one horizontal end of the pump body motor, and a pressure sensing switch 6 connected to the drainage chamber of the pump head 5 is provided on the pump head 5; and the front and rear ends of the bottom plate 2 in the longitudinal direction both extend out of the front side of the horizontally placed pump body 1, and the front and rear ends of the bottom plate 2 are connected to the connecting bottom plate 22 for fixing the bottom of the pump body motor; the left and right sides of the front and rear ends of the bottom plate 2 are respectively provided with support legs 23 to support the horizontally placed diaphragm pump, and the relay mounting plate 21 is arranged between the two left and right support legs 23 at the front end of the bottom plate 2.

[0027] In this embodiment, the relay protection cover 3 is detachably mounted on the relay mounting plate 21 by means of a snap-fit ​​structure 7 and screws (not shown) to facilitate product assembly.

[0028] Specifically, the engaging structure 7 includes at least two spaced-apart hooks 71 protruding downward from the bottom opening edge of the relay protective cover 3, and holes 72 corresponding to the hooks 71 on the relay mounting plate 21. The hooks 71 are removably engaged with the holes 72. During installation, the hooks 71 of the relay protective cover 3 are aligned with the holes 72 and quickly snapped into place.

[0029] In this embodiment, the relay protection cover 3 is hollow inside and has a pyramidal shape with a narrow top and a wide bottom. Two hooks 71 are respectively provided on the left and right sides of the rectangular opening at the bottom of the relay protection cover 3 .

[0030] The bottom of the relay protective cover 3 may also be provided with at least two spaced-apart locking holes 81; the relay mounting plate 21 may be provided with through holes 82 corresponding to the locking holes 81; the screws pass through the through holes 82 and lock into the locking holes 81, thereby locking the relay protective cover 3 to the relay mounting plate 21. The aforementioned snap-fit ​​structure 7 can be used to first snap the relay protective cover 3 onto the relay mounting plate 21, aligning the locking holes 81 and the through holes 82. The screws can then be tightened to enhance the connection stability between the relay protective cover 3 and the relay mounting plate 21, improving the protective effect.

[0031] At least two connecting posts 83 may be provided on the side walls of the installation space 31 in the relay protective cover 3, and the lock hole 81 may be provided in the connecting posts 83; a relay slot 32 may also be formed in the middle of the installation space 31 between the connecting posts 83, and the relay slot 32 is used to embed and fix the relay 4 so that the relay 4 can be tightly confined in the relay protective cover 3 to prevent the relay 4 from shaking or colliding.

[0032] In this embodiment, the bottom opening edge of the relay protection cover 3 is tightly attached to the relay mounting plate 21 to achieve a good sealing protection effect.

[0033] Furthermore, at least one positioning protrusion 33 may be protruded from the bottom opening edge of the relay protection cover 3, and the positioning protrusion 33 is inserted into the corresponding positioning hole 24 on the relay mounting plate 21, so as to achieve foolproof installation.

[0034] In this embodiment, the relay protective cover 3 is provided with a wire hole 34 on the rear side near the horizontally positioned pump body 1. The wire hole 34 communicates with the installation space 31 and is used to feed wires. A wire hole 34 can be provided at each of the left and right ends of the rear side of the relay protective cover 3 to facilitate electrical connection of the relay 4 to the pump motor and pressure sensing switch 6 via separate connecting wires 9, facilitating wiring of the relay 4.

[0035] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, equivalent changes and modifications that do not depart from the principles of the present invention should still fall within the scope of protection of the present invention.

[0036] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

Claims

1. A diaphragm pump with a relay, characterized in that: The diaphragm pump includes a horizontal pump body and a base plate arranged at the bottom of the horizontal pump body; the longitudinal front end of the base plate extends out from the front side of the horizontal pump body and forms a relay mounting plate, and a relay protective cover is fixed on the relay mounting plate, and an installation space with a bottom opening is formed in the relay protective cover. A relay is hidden and installed in the installation space, and the relay is electrically connected to the diaphragm pump.

2. A diaphragm pump with a relay according to claim 1, characterized in that: The relay protection cover is detachably mounted on the relay mounting plate by utilizing a clamping structure and screw locking.

3. A diaphragm pump with a relay according to claim 2, characterized in that: The clamping structure includes at least two clamping hooks spaced apart from each other and protruding downwardly on the bottom opening edge of the relay protection cover, and clamping holes on the relay mounting plate corresponding to the clamping hooks; the clamping hooks are detachably clamped in the clamping holes.

4. A diaphragm pump with a relay according to claim 2, characterized in that: The bottom of the relay protection cover is also provided with at least two lock holes arranged at intervals; the relay mounting plate is provided with through holes corresponding to the lock holes; the screws pass through the through holes and are locked in the lock holes, thereby locking the relay protection cover to the relay mounting plate.

5. A diaphragm pump with a relay according to claim 4, characterized in that: The side wall of the installation space in the relay protection cover is provided with at least two connecting columns, and the lock hole is provided in the connecting columns; a relay slot is formed in the middle of the installation space between the connecting columns, and the relay slot is used to embed and fix the relay.

6. The diaphragm pump with a relay according to claim 1, characterized in that: The bottom opening edge of the relay protection cover is tightly attached to the relay mounting plate; the bottom opening edge of the relay protection cover is also protruding with at least one positioning protrusion, and the positioning protrusion is positioned and inserted into a corresponding positioning hole on the relay mounting plate.

7. The diaphragm pump with a relay according to claim 1, characterized in that: The bottom opening edge of the relay protection cover is closely attached to the relay mounting plate; the relay protection cover is provided with a wire hole on the rear side close to the horizontal pump body, and the wire hole is connected to the installation space for feeding wires.

8. The diaphragm pump with a relay according to claim 3, characterized in that: The relay protection cover is hollow inside and has an outer shape of a prism that is narrow at the top and wide at the bottom; two hooks are respectively arranged on the left side and the right side of the rectangular opening at the bottom of the relay protection cover.

9. The diaphragm pump with a relay according to claim 1, characterized in that: The horizontally placed pump body is a pump body motor; the front and rear ends of the base plate in the longitudinal direction both extend out of the front side of the horizontally placed pump body, and a connecting base plate is provided between the front and rear ends of the base plate for connecting and fixing the bottom of the pump body motor; the left and right sides of the front and rear ends of the base plate are respectively provided with supporting feet, and the relay mounting plate is provided between the two left and right supporting feet at the front end of the base plate.

10. The diaphragm pump with a relay according to claim 1, characterized in that: The horizontally placed pump body is a pump body motor, a pump head is provided at one lateral end of the pump body motor, and a pressure sensing switch connected to the pump head drainage chamber is provided on the pump head; the relay is electrically connected to the pump body motor and the pressure sensing switch.

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