Motor pump sensor mounting structure

Abstract

The utility model relates to a motor pump sensor installation structure which comprises a pump body, an installation hole is formed in the pump body, the upper end of the installation hole is a step hole expanding outwards, and a limiting boss contracting inwards is arranged on the lower section of the installation hole. The connecting ring is inserted into the upper section of the stepped hole, and a first sealing ring is arranged between the outer side of the connecting ring and the inner side wall of the stepped hole; an assembly hole is formed in the middle of the connecting ring; and the upper end of the sensor is inserted into the assembly hole and is provided with a positioning convex ring which can be matched with the connecting ring. The motor pump is simple in structure, the sensor and the motor pump are assembled through the connecting ring, and when the sensor is damaged, only the connecting ring needs to be replaced, and other parts do not need to be replaced; the sensor is in interference fit with the connecting ring, so that equipment is convenient; and sealing rings are arranged between the connecting ring and the pump body and between the connecting ring and the pump cover, so that the good sealing relationship between the sensor and the pump body and the pump cover of the motor pump can be ensured, and leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor pump technical field relates to a motor pump sensor mounting structure. BACKGROUND

[0002] The sensor is usually provided on the motor pump, and is used for monitoring the voltage and temperature of the motor pump. The conventional assembly mode is to press the sensor into the pump cover with interference. Due to the problems of the pressing tooling or equipment, the sensor is easily damaged during the installation process. Alternatively, the sensor fails during the later use process, resulting in problems in the monitoring of the pressure and temperature of the motor pump, and the pump cover needs to be replaced, which has a large replacement cost. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a motor pump sensor mounting structure.

[0004] The utility model discloses the technical scheme adopted for solving the above technical problem is:

[0005] A motor pump sensor mounting structure comprises:

[0006] A pump body is provided with a mounting hole, the upper end of the mounting hole is a stepped hole expanding outward, and the lower section of the mounting hole is provided with a limiting boss shrinking inward;

[0007] A connecting ring is inserted into the upper section of the stepped hole, and a first sealing ring is arranged between the outer side of the connecting ring and the inner side wall of the stepped hole. A mounting hole is formed in the middle part of the connecting ring.

[0008] A sensor is inserted into the mounting hole at the upper end, the upper end of the sensor is provided with a positioning convex ring capable of cooperating with the connecting ring, and the lower end of the sensor is provided with a transition step capable of cooperating with the limiting boss.

[0009] A pump cover is connected with the pump body, and the pump cover is provided with a detection hole corresponding to the mounting hole.

[0010] Preferably, the upper edge of the stepped hole is provided with a chamfer.

[0011] Preferably, the outer side of the connecting ring is provided with a sealing groove, and the first sealing ring is clamped in the sealing groove.

[0012] Preferably, the upper surface of the connecting ring is provided with a sunken hole, and the sunken hole is provided with a second sealing ring.

[0013] Preferably, the sensor and the mounting hole are connected with interference.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model discloses simple structure realizes the assembly between sensor and motor pump through connecting ring, only needs to replace connecting ring when sensor is damaged, does not need to replace other components, the interference fit between sensor and connecting ring is convenient for equipment, connecting ring and pump body and pump cap all are provided with sealing ring, can ensure that the sealing relation between sensor and motor pump body pump cap is good, will not leak. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the structural schematic diagram of the utility model.

[0017] Fig. 2 It is the structural schematic diagram of the pump body and pump cap of the utility model.

[0018] Fig. 3 It is the structural schematic diagram of the connecting ring of the utility model.

[0019] In the drawing: 1, pump body;2, mounting hole;3, step hole;4, limit boss;5, connecting ring;6, first sealing ring;7, assembly hole;8, sensor;9, positioning convex ring;10, transition step;11, pump cap;13, detection hole;14, chamfer;15, sealing groove;16, sunken hole;17, second sealing ring. DETAILED DESCRIPTION

[0020] In order to make the person skilled in the art better understand the utility model scheme, the technical scheme of the utility model will be clearly and completely described below in conjunction with the drawings.

[0021] The embodiment proposes a motor pump sensor mounting structure, including pump body 1, connecting ring 5, sensor 8 and pump cap 11, and sensor 8 can be detachably installed between pump body 1 and pump cap 11 by connecting ring 5;

[0022] As Figs. 1-3 Shown, the pump body 1 is set with mounting hole 2, the upper end of mounting hole 2 is the step hole 3 that expands outward, and the lower section of mounting hole 2 is provided with the limit boss 4 that contracts inward;

[0023] Connecting ring 5 is inserted and mounted in the upper section of step hole 3, and first sealing ring 6 is arranged between the outer side of connecting ring 5 and the inner side wall of step hole 3, and first sealing ring 6 prevents medium leakage between connecting ring 5 and step hole 3;The middle part of connecting ring 5 is provided with assembly hole 7;

[0024] The upper end of sensor 8 is inserted and mounted in assembly hole 7, and the existence of assembly hole 7 makes that sensor 8 and connecting ring 5 are detachably connected;

[0025] The upper end of the sensor 8 is provided with a positioning convex ring 9 capable of cooperating with the connecting ring 5, and the positioning convex ring 9 prevents the sensor 8 from moving upward; the lower end of the sensor 8 is provided with a transition step 10 capable of cooperating with the limiting boss 4, and when the connection between the sensor 8 and the assembly hole 7 is loose, the transition step 10 can prevent the sensor 8 from moving downward;

[0026] The pump cover 11 is connected with the pump body 1, the pump cover 11 is provided with a detection hole 13 corresponding to the assembly hole 7, and the probe of the sensor 8 can detect the medium pressure in the detection hole 13.

[0027] Further, the upper edge of the stepped hole 3 is provided with a chamfer 14, and the chamfer 14 facilitates assembly of the connecting ring 5.

[0028] Further, the outer side of the connecting ring 5 is provided with a sealing groove 15, and the first sealing ring 6 is clamped in the sealing groove 15.

[0029] Further, the upper surface of the connecting ring 5 is provided with a sunken hole 16, and the sunken hole is provided with a second sealing ring 17, and the second sealing ring 17 prevents medium leakage between the connecting ring 5 and the pump cover 11.

[0030] Further, the sensor 8 is connected with the assembly hole 7 in an interference fit, and the interference fit facilitates disassembly and replacement.

[0031] Working principle: the utility model discloses the assembly hole 7 is set up in the middle part of connecting ring 5, and the sensor 8 is detachably inserted in the assembly hole 7, and the sensor 7 and the connecting ring 5 are connected in interference fit to form a hard seal, and the connecting ring 5 is provided with the first sealing ring 6 and the second sealing ring 17 between the pump body 1 and the pump cover 11 respectively, so that the sensor and the pump body 1 and the pump cover 11 of motor pump are sealed well, and the sensor detection effect is not affected.

[0032] When the sensor needs to be replaced, the connecting ring 5 is taken out from the pump body 1, and the sensor 8 is taken out from the pump body 1, so that the sensor can be replaced conveniently.

[0033] It can be understood that the above implementation is only an exemplary embodiment for illustrating the principle of the utility model, and the utility model is not limited to this. For ordinary skilled persons in the art, various modifications and improvements can be made without departing from the spirit and essence of the utility model, and these modifications and improvements are also regarded as the protection scope of the utility model.

Claims

1. An electric motor pump sensor mounting structure characterized by, Include: Pump body (1), the installation hole (2) is set up on the pump body (1), the upper end of the installation hole (2) is the stepped hole (3) that expands outward, the lower section of installation hole (2) is provided with the limit boss (4) that contracts inward; Connecting ring (5), the connecting ring (5) is inserted and installed in the upper section of stepped hole (3), and the first sealing ring (6) is arranged between the outside of connecting ring (5) and the inner side wall of stepped hole (3);The middle part of connecting ring (5) is provided with assembly hole (7); Sensor (8), the upper end of sensor (8) is inserted and installed in assembly hole (7), and the upper end of sensor (8) is provided with the positioning convex ring (9) that can be matched with connecting ring (5), and the lower end of sensor (8) is provided with the transition step (10) that can be matched with limit boss (4); Pump cover (11), the pump cover (11) is connected with pump body (1), and the detection hole (13) corresponding with assembly hole (7) is set up on pump cover (11).

2. A motor pump sensor mounting structure according to claim 1, characterized by The upper edge of the stepped hole (3) is provided with a chamfer (14).

3. The motor pump sensor mounting structure of claim 1, wherein The outside of the connecting ring (5) is provided with a sealing groove (15), and the first sealing ring (6) is clamped in the sealing groove (15).

4. A motor pump sensor mounting structure according to claim 3, wherein The upper surface of the connecting ring (5) is provided with a sunken hole (16), and the second sealing ring (17) is arranged in the sunken hole.

5. The motor pump sensor mounting structure of claim 1, wherein The sensor (8) and assembly hole (7) are connected with interference.

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