Unilateral water inlet and outlet cavity combined structure of water pump

Abstract

The utility model provides a unilateral water inlet and outlet cavity combined structure of a water pump. The water pump comprises a pump body, a cylinder head arranged on the pump body, a shell, a water inlet pipe and a water outlet pipe, the shell is installed on one side of the pump body, a water cavity is formed in the shell, a connector piece is arranged on the outer side wall of the shell and connected to the cylinder head, and a water inlet hole and a water outlet hole are formed in the cylinder head; a water inlet channel and a water outlet channel are arranged in the connector, one end of the water inlet channel is communicated with the water cavity, the other end of the water inlet channel penetrates through the outer side wall of the connector and is connected with the water inlet hole, one end of the water outlet channel is communicated with the water outlet hole, and the other end of the water outlet channel is communicated with the water outlet pipe. The shell of the water inlet and outlet cavity combined structure is independently installed on one side of the pump body, even if water in the water cavity is frozen to cause frost crack of the shell, only the shell needs to be replaced, and the side wall of the pump body cannot be damaged.

Description

Technical Field

[0001] The utility model relates to a diaphragm pump, in particular to a single-side water inlet and outlet water cavity combined structure of a water pump. Background Art

[0002] The applicant has previously applied for a Chinese utility model patent with announcement number CN214577640U for a three-cylinder diaphragm pump, whose main structure includes a pump body and three cylinder heads distributed around the pump body, the pump body includes a pump casing, a pump chamber arranged on the pump casing, an output shaft, and a pump cover, the output shaft passes through the pump casing and extends into the pump casing, three connecting pipes are arranged in the pump chamber, the three connecting pipes are arranged in a triangle, and are connected end to end and interconnected, and at the same time, the vertex connection positions of the three connecting pipes are connected to the water outlet positions of the three cylinder heads, the pump cover is arranged at the opening of the pump chamber, three water outlets are arranged on the cavity wall of the pump chamber, the three water outlets are respectively communicated with the corresponding water inlet positions of the cylinder heads, a water inlet pipe is arranged on the pump cover, and a water outlet pipe is arranged on the pump casing; water enters the water inlet pipe, the pump chamber, the water outlet, the cylinder head, the connecting pipe, and the water outlet pipe in sequence, and is finally sprayed out by the water outlet pipe.

[0003] Although the structure of the above-mentioned product can meet the water discharge requirements of the diaphragm pump, if it is used in the winter environment in the northern region, after the water in the pump freezes, since the pump cavity is formed in the pump casing, the water is located in the pump cavity and the connecting pipe. Once the pump cavity and the connecting pipe are frozen and cracked, the entire pump casing will be scrapped and the maintenance cost will be high. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a water pump single-side water inlet and outlet chamber combined structure, the maintenance cost of which is significantly reduced.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A water pump single-side water inlet and outlet chamber combination structure, comprising a pump body, a cylinder head arranged on the pump body, a shell, a water inlet pipe, and a water outlet pipe, wherein the shell is installed at one side of the pump body, a water chamber is arranged in the shell, a joint is arranged on the outer side wall of the shell, the joint is connected to the cylinder head, and a water inlet hole and a water outlet hole are arranged on the cylinder head;

[0007] A water inlet channel and a water outlet channel are provided in the joint piece. One end of the water inlet channel is communicated with the water cavity, and the other end of the water inlet channel passes through the outer wall of the joint piece and is connected to the water inlet hole. One end of the water outlet channel is communicated with the water outlet hole, and the other end of the water outlet channel is communicated with the water outlet pipe.

[0008] Through the above technical solution, in actual use, water enters the water cavity from the water inlet pipe, and the water in the water cavity will enter the water inlet channel and the water inlet hole in turn. After passing through the cylinder head, the water flows out from the water outlet hole, then enters the water outlet channel, and finally flows out from the water outlet pipe. Most of the areas through which the above water flows are concentrated at the shell position; the shell of the inlet and outlet water cavity combination structure is independently installed on one side of the pump body. Even if the water in the water cavity freezes and causes the shell to crack, only the shell needs to be replaced, and the side wall of the pump body will not be damaged, and the maintenance cost is significantly reduced; in addition, due to the adoption of a single-sided design scheme, the structure of the entire water pump is more compact than the traditional double-sided design scheme.

[0009] Preferably, it further comprises a water discharge member, wherein the water discharge member passes through the shell and forms a seal with the shell, and an end of the water discharge member passes into the water outlet channel and forms a seal with a side wall of the water outlet channel.

[0010] Through the above technical scheme, when in normal use, the drain piece can simultaneously block the shell and the side wall of the water outlet channel to ensure normal water flow; when the water pump is not in use, the drain piece can be removed, and the water in the water cavity of the shell and the water in the water outlet channel can be released at one time, which is easy to operate and compact in structure.

[0011] Preferably, a tube body corresponding to the water outlet channel is provided in the water cavity, the tube body is integrally formed on the shell, and the water outlet channel is correspondingly located in the tube body.

[0012] Through the above technical scheme, firstly, a tube body is arranged in the water cavity, which can effectively increase the channel size of the entire water outlet channel and increase the amount of water passing through; secondly, an integrated molding process is adopted between the tube body and the shell, which can be injection molded at one time, and the production cost is low; thirdly, the tube body can have a structural reinforcement effect on the outer wall of the shell, and the overall structure has high stability and is not easy to freeze and crack.

[0013] Preferably, the tube body is arched over the inner wall of the water cavity.

[0014] Through the above technical solution, the tube body arched on the inner wall of the water cavity acts as a reinforcing rib, and the structural strength of the inner wall of the water cavity is significantly enhanced, making it less likely to freeze and crack.

[0015] Preferably, the pipe opening of the water inlet pipe close to the water cavity is directly opposite to the arched pipe body.

[0016] Through the above technical solution, external water first enters the water cavity from the water inlet pipe. The water just entering the water cavity carries a certain impact force. This part of the water will first collide with the arched pipe body, which can effectively reduce the impact force of the water flow, improve the stability of the water flow in subsequent flow, and also help to improve the smooth operation of the water pump.

[0017] Preferably, the number of the connectors is four, and the four connectors are distributed around the shell. The tube bodies corresponding to two adjacent connectors are perpendicular to each other and are internally interconnected. The tube bodies corresponding to the four connectors are interwoven to form a grid structure.

[0018] Through the above technical solution, firstly, four joints are used, and then four cylinder heads are set accordingly, which can improve the pumping power of the entire water pump; secondly, the tubes are interwoven to form a grid structure, which can greatly improve the structural strength of the shell; finally, the tubes corresponding to two adjacent joints are arranged perpendicular to each other, which is also convenient for lateral core pulling during injection molding, and demolding is smoother.

[0019] Preferably, a pressure stabilizing groove is provided on the outer side wall of the shell, a pressure stabilizing channel is provided in the pressure stabilizing groove, and the water outlet channel is communicated with the pressure stabilizing groove through the pressure stabilizing channel;

[0020] It also includes a voltage stabilizing component, which includes a voltage stabilizing cover and an elastic diaphragm. The voltage stabilizing cover is arranged at the notch of the voltage stabilizing groove, and the elastic diaphragm is installed between the voltage stabilizing cover and the notch of the voltage stabilizing groove.

[0021] Through the above technical solution, during use, if the water pressure in the water cavity increases, the water in the water outlet channel will enter the pressure stabilizing groove through the pressure stabilizing channel, and the water entering the pressure stabilizing groove will produce an extrusion pressure on the elastic diaphragm, and the elastic diaphragm will produce an elastic deformation on one side; when the water pressure in the water cavity decreases, the elastic diaphragm will produce an extrusion pressure on the water in the pressure stabilizing groove, prompting the water in the pressure stabilizing groove to re-enter the water cavity; therefore, through the above use process, the purpose of pressure stabilization can be effectively achieved.

[0022] Preferably, it further comprises a mounting cover, the water cavity is arranged to be open, and the mounting cover is sealingly mounted at the opening of the water cavity.

[0023] Through the above technical solution, firstly, the entire water cavity is opened to facilitate early injection molding; secondly, according to structural analysis, the installation cover is most prone to freezing and cracking, so the material of the installation cover can be replaced with metal material. Even if plastic material is still used, if the installation cover is frozen and cracked, only the installation cover needs to be replaced, which is convenient for maintenance and has low maintenance costs.

[0024] Preferably, the connector is bent toward one side of the cylinder head to form a bent section, the bent section is plugged into the cylinder head, and a spacing space is formed between the mounting cover and the outer side wall of the pump body.

[0025] Through the above technical scheme, the supporting effect formed by the bent section is fully utilized to form a spacing space between the mounting cover and the outer wall of the pump body. On the one hand, if the mounting cover is deformed or cracked, the probability of extrusion between the mounting cover and the outer wall of the pump body is low, thereby reducing the occurrence of extrusion injuries. On the other hand, the pump body can reduce the vibration directly transmitted to the mounting cover position, thereby effectively improving the installation stability of the mounting cover and the water flow stability in the casing.

[0026] Preferably, each of the joint parts includes a first pipe fitting, a second pipe fitting, and a pipe sleeve, the first pipe fitting and the second pipe fitting are integrally formed on the shell, the bending section is arranged on the pipe sleeve, the pipe sleeve is provided with a first channel and a second channel, the first pipe fitting is sealably inserted in the first channel, the second pipe fitting is sealably inserted in the second channel, the water inlet channel is connected between the first pipe fitting and the first channel, and the water outlet channel is connected between the second pipe fitting and the second channel.

[0027] Through the above technical solution, firstly, a split design is adopted between the pipe sleeve and the first pipe body and the second pipe body, which is convenient for early production and processing; secondly, if freezing and cracking occur at different positions in the later stage, the accessories at different positions can be replaced in a targeted manner, which makes maintenance simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment;

[0029] Figure 2 It is a schematic diagram of the structure of the embodiment when the housing and the connector are not installed;

[0030] Figure 3 Structural explosion of shell and joint parts Figure 1 ;

[0031] Figure 4 Structural explosion of shell and joint parts Figure 2 ;

[0032] Figure 5 It is a schematic diagram of the main structure of the shell and the connector;

[0033] Figure 6 is a side structural schematic diagram of an embodiment;

[0034] Figure 7 It is a partial cross-sectional view of an embodiment.

[0035] 1. Pump body; 2. Cylinder head; 21. Water inlet hole; 22. Water outlet hole; 3. Shell; 4. Water inlet pipe; 5. Water outlet pipe; 6. Water cavity; 7. Connector; 8. First pipe fitting; 9. Second pipe fitting; 10. Pipe sleeve; 101. First channel; 102. Second channel; 11. Water inlet channel; 12. Water outlet channel; 13. Drain member; 14. Pipe body; 141. One pipe; 142. Two pipes; 143. Three pipes; 144. Four pipes; 15. Pressure-stabilizing groove; 16. Pressure-stabilizing channel; 17. Pressure-stabilizing member; 171. Pressure-stabilizing cover; 172. Elastic diaphragm; 18. Mounting cover; 19. Bending section; 20. Interval space. DETAILED DESCRIPTION

[0036] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0037] A water pump with a single-side water inlet and outlet chamber combination structure, see Figure 1 as well as Figure 2 , comprising a pump body 1, a cylinder head 2 is installed around the pump body 1, and the cylinder head 2 shown in this embodiment is four in number. Each cylinder head 2 is provided with a water inlet hole 21 and a water outlet hole 22.

[0038] See also Figure 1 as well as Figure 3 A housing 3 is installed at one side of the pump body 1. A water inlet pipe 4 and a water outlet pipe 5 are installed on the outer side wall of the housing 3. A water cavity 6 is provided on the side wall of the housing 3 close to the pump body 1. The water cavity 6 is open and the opening of the water cavity 6 faces the side of the pump body 1. A mounting cover 18 is sealed and installed at the opening of the water cavity 6. The above-mentioned sealing installation form can be adopted by installing a sealing ring between the mounting cover 18 and the side wall of the water cavity 6. The material of the mounting cover 18 can be selected from metal material or plastic material.

[0039] See also Figure 1 A connector 7 is provided on the outer side wall of the housing 3. The number of the connectors 7 is two or more, and the number of the connectors 7 shown in this embodiment is four, and the four connectors 7 are distributed around the housing 3, and the connectors 7 are connected to the cylinder heads 2 one by one.

[0040] See also Figure 5 Each of the joint pieces 7 is provided with a water inlet channel 11 and a water outlet channel 12. One end of the water inlet channel 11 is communicated with the water cavity 6, and the other end of the water inlet channel 11 passes through the outer wall of the joint piece 7 and is connected to the water inlet hole 21. One end of the water outlet channel 12 is communicated with the water outlet hole 22, and the other end of the water outlet channel 12 is communicated with the water outlet pipe 5. The water outlet channels 12 on each of the joint pieces 7 are communicated with each other.

[0041] See also Figure 3 , Figure 4 as well as Figure 6 Each of the joint members 7 includes a first pipe member 8, a second pipe member 9, and a pipe sleeve 10. The first pipe member 8 and the second pipe member 9 are integrally formed on the housing 3. The pipe sleeve 10 is bent toward one side of the cylinder head 2 to form a bent section 19. The bent section 19 is plugged into the cylinder head 2. A spacing space 20 is formed between the mounting cover 18 and the outer side wall of the pump body 1.

[0042] The pipe sleeve 10 is provided with a first channel 101 and a second channel 102. The first pipe 8 is sealed and plugged into the first channel 101. The sealed plugging can be performed by installing a sealing ring between the first pipe 8 and the first channel 101. The second pipe 9 is sealed and plugged into the second channel 102. The sealed plugging can be performed by installing a sealing ring between the second pipe 9 and the second channel 102.

[0043] The water inlet channel 11 is connected between the first pipe 8 and the first channel 101 . The water outlet channel 12 is connected between the second pipe 9 and the second channel 102 .

[0044] See also Figure 3 as well as Figure 5 The water cavity 6 is provided with a tube body 14 corresponding to the water outlet channel 12. The tube body 14 is integrally formed on the housing 3. The water outlet channel 12 is correspondingly located in the tube body 14. The tube body 14 is arched on the inner wall of the water cavity 6.

[0045] The pipe opening of the water inlet pipe 4 close to the water chamber 6 is directly opposite to the arched pipe body 14 .

[0046] See also Figure 5 The tube bodies 14 corresponding to two adjacent connectors 7 are perpendicular to each other and are internally interconnected, and the tube bodies 14 corresponding to four connectors 7 are interwoven to form a grid structure.

[0047] See also Figure 3 as well as Figure 5 , and also includes a drain member 13, which passes through the housing 3 and forms a seal with the housing 3. The end of the drain member 13 penetrates into the water outlet channel 12 and forms a seal with the side wall of the water outlet channel 12. That is, holes are provided on the housing 3 and the side wall of the water outlet channel 12, and the drain member 13 can be a drain bolt, which passes through and is threadedly connected to the hole of the housing 3, and a sealing ring is installed between the drain bolt and the housing 3. An elastic sealing block can be provided at the end of the waterproof bolt, and the elastic sealing block seals the hole of the water outlet channel 12.

[0048] See also Figure 4 as well as Figure 7The outer wall of the housing 3 is provided with a pressure stabilizing groove 15, and a pressure stabilizing channel 16 is provided in the pressure stabilizing groove 15. The water outlet channel 12 communicates with the pressure stabilizing groove 15 through the pressure stabilizing channel 16. The housing 3 also includes a pressure stabilizing member 17, which includes a pressure stabilizing cover 171 and an elastic diaphragm 172. The pressure stabilizing cover 171 is covered at the notch of the pressure stabilizing groove 15, and the elastic diaphragm 172 is installed between the pressure stabilizing cover 171 and the notch of the pressure stabilizing groove 15.

[0049] During actual use, water enters the water chamber 6 from the water inlet pipe 4, and the water in the water chamber 6 will enter the water inlet channel 11 and the water inlet hole 21 in turn. After passing through the cylinder head 2, the water flows out from the water outlet hole 22, then enters the water outlet channel 12, and finally flows out from the water outlet pipe 5.

[0050] In addition, the following aspects are worth mentioning:

[0051] (1) The pressure-stabilizing groove 15 is located in the middle of the four joint members 7 , and the notch of the pressure-stabilizing groove 15 is oriented in the opposite direction to the cavity opening of the water cavity 6 .

[0052] Therefore, when the water pressure is high and the temperature is low, the traditional shell 3 is easily ruptured due to the pressure. However, when the above structure is used, the pressure-stabilizing groove 15 will generate water pressure on the side wall of the shell 3 toward the tube body 14, and the water chamber 6 will also generate water pressure on the side wall of the shell 3 toward the pressure-stabilizing groove 15. The two water pressures offset each other, which can minimize the deformation of the side wall of the shell 3 between the pressure-stabilizing groove 15 and the water chamber 6, thereby reducing the probability of rupture.

[0053] The voltage-stabilizing groove 15 is arranged in the middle of the four connectors 7, so that the structural space is fully utilized and the overall structure is more compact.

[0054] (2) The tube bodies 14 corresponding to the four joint pieces 7 are interwoven to form a grid structure. Figure 5 As shown, the four tube bodies 14 are respectively one tube 141, two tubes 142, three tubes 143, and four tubes 144. The one tube 141, the two tubes 142, the three tubes 143, and the four tubes 144 are all straight tubes. The one tube 141, the two tubes 142, the three tubes 143, and the four tubes 144 are interconnected. The one tube 141 is perpendicular to the two tubes 142, and the end of the one tube 141 is butted against the outer tube wall of the two tubes 142; the two tubes 142 are perpendicular to the three tubes 143, and the end of the two tubes 142 is butted against the outer tube wall of the three tubes 143; the three tubes 143 are perpendicular to the four tubes 144, and the end of the three tubes 143 is butted against the outer tube wall of the four tubes 144; the four tubes 144 are perpendicular to the one tube 141, and the end of the four tubes 144 is butted against the outer tube wall of the three tubes 143, thus forming a structure as shown in FIG. Figure 5The structural form shown. A first buffer space is formed among the first tube 141, the second tube 142, and the wall of the water cavity 6 of the shell 3; a second buffer space is formed among the second tube 142, the third tube 143, and the wall of the water cavity 6 of the shell 3; a third buffer space is formed among the third tube 143, the fourth tube 144, and the wall of the water cavity 6 of the shell 3; a fourth buffer space is formed among the fourth tube 144, the first tube 141, and the wall of the water cavity 6 of the shell 3, and the water inlet channels 11 on the four joints 7 are respectively connected to the corresponding four buffer spaces.

[0055] Therefore, water just entering from the water inlet channel 11 can be buffered in the corresponding buffer space first, and collide with the corresponding tube body 14 and the wall of the water cavity 6, thereby forming a stronger buffering effect. In addition, the four areas independently generate buffering force, and the force is more balanced.

[0056] (3) The tube bodies 14 corresponding to the four joint members 7 are interwoven to form a grid structure. Figure 4 as well as Figure 5 As shown, a plurality of pressure stabilizing channels 16 are provided. In this embodiment, there are eight pressure stabilizing channels 16 , and every two pressure stabilizing channels 16 correspond to one tube body 14 .

[0057] Therefore, the elastic diaphragm 172 can receive the water flow pressure from all the tube bodies 14 at the same time, and the pressure stabilizing effect is more obvious. Combined with the grid-shaped structure of the tube body 14, the eight pressure stabilizing channels 16 are also correspondingly presented as a circular array. The water flow ejected by the pressure stabilizing channels 16 can also produce a more uniform impact on the elastic diaphragm 172, and the deformation of the elastic diaphragm 172 can also be more sensitive.

[0058] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A water pump single-side water inlet and outlet chamber combination structure, comprising a pump body (1), a cylinder head (2) arranged on the pump body (1), a housing (3), a water inlet pipe (4), and a water outlet pipe (5), wherein: The housing (3) is installed at one side of the pump body (1), a water cavity (6) is provided in the housing (3), a joint (7) is provided on the outer wall of the housing (3), the joint (7) is connected to the cylinder head (2), and the cylinder head (2) is provided with a water inlet hole (21) and a water outlet hole (22); The joint member (7) is provided with a water inlet channel (11) and a water outlet channel (12); one end of the water inlet channel (11) is in communication with the water cavity (6); the other end of the water inlet channel (11) passes through the outer wall of the joint member (7) and is connected to the water inlet hole (21); one end of the water outlet channel (12) is in communication with the water outlet hole (22); and the other end of the water outlet channel (12) is in communication with the water outlet pipe (5).

2. The water pump single-side water inlet and outlet chamber combination structure according to claim 1 is characterized by: It also comprises a water discharge member (13), the water discharge member (13) passes through the shell (3) and forms a seal with the shell (3), and the end of the water discharge member (13) passes into the water outlet channel (12) and forms a seal with the side wall of the water outlet channel (12).

3. The water pump single-side water inlet and outlet chamber combination structure according to claim 1 is characterized by: A tube body (14) corresponding one-to-one to the water outlet channel (12) is provided in the water cavity (6); the tube body (14) is integrally formed on the shell (3); and the water outlet channel (12) is correspondingly located in the tube body (14).

4. A water pump single-side water inlet and outlet chamber combination structure according to claim 3, characterized in that: The tube body (14) is arched on the inner cavity wall of the water cavity (6).

5. The water pump single-side water inlet and outlet chamber combination structure according to claim 4 is characterized by: The pipe opening of the water inlet pipe (4) close to the water chamber (6) is directly opposite to the arched pipe body (14).

6. The water pump single-side water inlet and outlet chamber combination structure according to claim 4 is characterized by: The number of the connectors (7) is four, and the four connectors (7) are distributed around the shell (3). The tube bodies (14) corresponding to two adjacent connectors (7) are perpendicular to each other and are internally interconnected. The tube bodies (14) corresponding to the four connectors (7) are interwoven to form a grid-like structure.

7. The water pump single-side water inlet and outlet chamber combination structure according to claim 1 is characterized by: A pressure-stabilizing groove (15) is provided on the outer wall of the shell (3), a pressure-stabilizing channel (16) is provided in the pressure-stabilizing groove (15), and the water outlet channel (12) and the pressure-stabilizing groove (15) are communicated through the pressure-stabilizing channel (16); It also includes a voltage stabilizing component (17), the voltage stabilizing component (17) including a voltage stabilizing cover (171) and an elastic diaphragm (172), the voltage stabilizing cover (171) is arranged at the notch of the voltage stabilizing groove (15), and the elastic diaphragm (172) is installed between the voltage stabilizing cover (171) and the notch of the voltage stabilizing groove (15).

8. A water pump single-side water inlet and outlet chamber combination structure according to any one of claims 1 to 7, characterized in that: It also comprises a mounting cover (18), the water cavity (6) is arranged to be open, and the mounting cover (18) is sealingly mounted at the opening of the water cavity (6).

9. A water pump single-side water inlet and outlet chamber combination structure according to claim 8, characterized in that: The joint member (7) is bent toward one side of the cylinder head (2) to form a bent section (19), the bent section (19) is plugged into the cylinder head (2), and a spacing space (20) is formed between the mounting cover (18) and the outer side wall of the pump body (1).

10. A water pump single-side water inlet and outlet chamber combination structure according to claim 9, characterized in that: Each of the joint members (7) comprises a first pipe member (8), a second pipe member (9) and a pipe sleeve (10); the first pipe member (8) and the second pipe member (9) are integrally formed on the shell (3); the bending section (19) is arranged on the pipe sleeve (10); a first channel (101) and a second channel (102) are arranged in the pipe sleeve (10); the first pipe member (8) is sealed and inserted in the first channel (101); the second pipe member (9) is sealed and inserted in the second channel (102); the water inlet channel (11) is connected between the first pipe member (8) and the first channel (101); and the water outlet channel (12) is connected between the second pipe member (9) and the second channel (102).

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