Pump head of circulating pump

Abstract

The utility model discloses a circulating pump head which comprises a pump head connecting port, a cavity is formed in the pump head connecting port, an inner connecting pipe and an outer connecting pipe are installed and inserted into the cavity, the outer connecting pipe is connected to the outer side of the inner connecting pipe in a sleeved mode, two opposite inserting openings are formed in the inner wall of an inlet of the pump head connecting port, and the two inserting openings are communicated with the pump head connecting port. And two inserting openings are formed in the inner wall of an inlet of the pump head connecting opening and used for allowing limiting blocks to be installed and inserted, the two limiting blocks are oppositely arranged, the two limiting blocks are arranged on the outer side of the outer connecting pipe, sliding grooves are further formed in the inner wall of the inlet of the pump head connecting opening, the two sliding grooves are oppositely arranged, and the two sliding grooves communicate with the interiors of the two inserting openings correspondingly. The limiting block on the outer side of the outer connecting pipe can be inserted and clamped in the sliding groove through the inserting opening and the sliding groove formed in the running head connecting opening, the inner connecting pipe and the outer connecting pipe can be fixedly connected with the pump head connecting opening in cooperation with sliding of the upper sliding block, mounting and dismounting are easy and convenient, and threaded connection is not needed, and falling off caused by working vibration of the circulating pump is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating pumps, and particularly relates to a pump head of a circulating pump. Background Technique

[0002] A circulating pump refers to the function of the pump, while a centrifugal pump refers to the structure of the pump. The two are completely different concepts. The working principle of a circulating pump is that the pump used to circulate water is called a circulating pump. For example, the hot water in a water heating pipeline is circulated by a circulating pump.

[0003] The pump head is one of the essential components of a circulating pump. The liquid in the pump head will constantly beat and rotate due to the high-speed rotation of the impeller. Therefore, some vibrations will be generated during the operation of the circulating pump. Generally, the pump head is connected to the water pipe through threads. This connection method is not only troublesome but also the threads will become loose due to the vibration generated during the operation of the circulating pump, resulting in water leakage at the connection between the pump head and the connecting pipe.

[0004] Therefore, we propose a pump head of a circulating pump. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a pump head of a circulating pump. By providing a socket and a sliding groove at the connection port of the pump head, the limiting block on the outer side of the outer connecting pipe can be inserted into and stuck in the sliding groove. With the cooperation of the sliding of the sliding block, the inner and outer connecting pipes can be fixedly connected to the connection port of the pump head, and the installation and disassembly are simple and convenient. There is no need for threaded connection and it will not fall off due to the working vibration of the circulating pump, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A pump head of a circulating pump includes a pump head connection port. A cavity is provided inside the pump head connection port for installing and inserting an inner connecting pipe and an outer connecting pipe. The outer connecting pipe is sleeved outside the inner connecting pipe.

[0008] Two sockets are provided on the inner wall of the inlet of the pump head connection port for installing and inserting limiting blocks. Two limiting blocks are provided opposite to each other, and the two limiting blocks are arranged on the outer side of the outer connecting pipe.

[0009] Furthermore, two sliding grooves are also provided on the inner wall of the inlet of the pump head connection port. The two sliding grooves are opposite to each other and are respectively communicated with the interiors of the two sockets.

[0010] Further, a sliding block is movably installed inside one side of the socket of the pump head connection port. A groove is formed on one side of the sliding block, and there are multiple such grooves. A spring cavity is formed inside the sliding block, and a spring column is installed inside the spring cavity.

[0011] Further, one end of the spring column is fixedly connected to one end of a convex block, and the other end of the convex block passes through the sliding block and is movably arranged outside the sliding block.

[0012] Further, a sealing ring is fixedly connected to the inner wall of the pump head connection port, and the sealing ring is sleeved outside the inner connecting pipe.

[0013] Compared with the prior art, the present utility model has the following beneficial effects: The socket and the sliding groove formed at the pump head connection port can allow the limiting block on the outer side of the outer connecting pipe to be inserted and stuck in the sliding groove. With the sliding of the sliding block, the inner and outer connecting pipes can be fixedly connected to the pump head connection port, and the installation and disassembly are simple and convenient. There is no need for threaded connection, and it will not fall off due to the working vibration of the circulating pump. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a circulating pump pump head of the present utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the sliding block of a circulating pump pump head of the present utility model.

[0016] Figure 3 It is a Figure 2 magnified structural schematic diagram of part A of a circulating pump pump head of the present utility model.

[0017] Figure 4 It is a planar structural schematic diagram of the sliding block of a circulating pump pump head of the present utility model.

[0018] In the figure: 1. Pump head connection port; 2. Sealing ring; 3. Inner connecting pipe; 4. Limiting block; 5. Outer connecting pipe; 6. Sliding block; 7. Socket; 8. Sliding groove; 9. Cavity; 10. Convex block; 11. Groove; 12. Spring cavity; 13. Spring column. Detailed Embodiment

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] As Figures 1-4 shown, a circulating pump pump head includes a pump head connection port 1. A cavity 9 is provided inside the pump head connection port 1, and the cavity 9 is used for installing and inserting the inner connecting pipe 3 and the outer connecting pipe 5. The outer connecting pipe 5 is sleeved outside the inner connecting pipe 3;

[0021] The inner wall of the inlet of the pump head connection port 1 is provided with insertion ports 7. There are two opposite insertion ports 7 for installing and inserting the limit blocks 4. There are two opposite limit blocks 4 arranged on the outer side of the outer connection pipe 5;

[0022] The inner wall of the inlet of the pump head connection port 1 is further provided with sliding grooves 8. There are two opposite sliding grooves 8, and the two sliding grooves 8 are respectively communicated with the interiors of the two insertion ports 7; A sliding block 6 is movably installed inside the pump head connection port 1 on one side of the insertion port 7. A groove 11 is opened on one side of the sliding block 6. There are multiple grooves 11. The arrangement of the grooves 11 allows the fingers of the staff to be inserted to facilitate sliding the sliding block 6. A spring cavity 12 is opened inside the sliding block 6, and a spring column 13 is installed inside the spring cavity 12;

[0023] One end of the spring column 13 is fixedly connected to one end of a convex block 10. The other end of the convex block 10 passes through the sliding block 6 and is movably arranged outside the sliding block 6; The inner wall of the pump head connection port 1 is further fixedly connected with a sealing ring 2. The sealing ring 2 is sleeved on the outer side of the inner connection pipe 3. The setting of the sealing ring 2 can prevent water leakage.

[0024] It should be noted that the present utility model is a circulating pump head. First, insert the inner connection pipe 3 and the outer connection pipe 5 into the cavity 9 of the pump head connection port 1, and align the positions of the two limit blocks 4 with the two insertion ports 7. When the two limit blocks 4 are inserted into the insertion ports 7, the outer side of the inner connection pipe 3 will also be sleeved by the sealing ring 2. At this time, only need to rotate the outer connection pipe 5 to make the two limit blocks 4 slide into the sliding grooves 8, and finally drag the sliding block 6 out from one side of the insertion port 7 to make the sliding block 6 also slide into the sliding grooves 8 until the convex block 10 protrudes from the inside of the pump head connection port 1 under the pressure given by the spring column 13, thereby limiting the sliding block 6. In this way, the sliding block 6 completes the blocking of the limit block 4. During disassembly, only need to manually press the convex block 10 into the sliding block 6, slide the sliding block 6 out of the sliding groove 8, and then rotate the outer connection pipe 5 in the reverse direction of installation to make the limit block 4 slide to the insertion port 7 to complete the disassembly.

[0025] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A circulating pump head, comprising a pump head connection port (1), characterized in that: The pump head connection port (1) is provided with a cavity (9) inside, and the cavity (9) is used for installing and inserting the inner connecting pipe (3) and the outer connecting pipe (5), and the outer connecting pipe (5) is sleeved on the outer side of the inner connecting pipe (3); The inner wall of the entrance of the pump head connection port (1) is provided with a socket (7), and the socket (7) is provided at two locations opposite to each other. The two sockets (7) are used for installing and inserting the limit blocks (4). The limit blocks (4) are provided at two locations opposite to each other. The two limit blocks (4) are arranged on the outside of the external connection pipe (5); the inner wall of the entrance of the pump head connection port (1) is also provided with a slide groove (8), and the slide groove (8) is provided at two locations opposite to each other. The two slide grooves (8) are respectively connected to the inside of the two sockets (7); The pump head connection port (1) is located on one side of the socket (7) and a sliding block (6) is movably installed inside. A groove (11) is provided on one side of the sliding block (6). The groove (11) is provided at a plurality of locations. A spring cavity (12) is provided inside the sliding block (6). A spring column (13) is installed inside the spring cavity (12); one end of the spring column (13) is fixedly connected to one end of the protrusion (10), and the other end of the protrusion (10) passes through the sliding block (6) and is movably arranged on the outside of the sliding block (6); The inner wall of the pump head connection port (1) is also fixedly connected to a sealing ring (2), and the sealing ring (2) is sleeved on the outer side of the inner connection pipe (3).

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