Connecting structure and feed pump

Abstract

The utility model discloses a connecting structure and a water feeding pump, and relates to the technical field of valve vibration resistance, the connecting structure comprises a first pipe body assembly and a second pipe body assembly, the first pipe body assembly comprises a first connecting pipe, one end of the first connecting pipe is provided with a plug-in end, and the first connecting pipe is rotatably provided with a fastener; a limiting groove and a locking groove are further formed in the position, located between the fastener and the inserting end, of the first connecting pipe, and one end of the limiting groove is located at the joint of the first connecting pipe and the inserting end. The water feeding pump has the advantages that the water feeding pump and the valve are connected through the connecting structure of the first connecting pipe and the second connecting pipe, when the water feeding pump breaks down and needs to be dismantled and overhauled, the first connecting pipe and the second connecting pipe can be dismantled by removing the locking piece and the fastening piece, the water feeding pump is convenient to dismantle, and the overhauling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply pumps, in particular to a connection structure and a water supply pump. Background Art

[0002] The auxiliary system of steam turbine is mainly used to support the operation of steam turbine and improve thermal efficiency, which includes steam inlet system, extraction system, reheat system, exhaust system and lubrication system. The feedwater pump belongs to the steam inlet system and is used for water transportation of steam turbine steam inlet system. The existing feedwater pump and valve are usually connected by flange. If the feedwater pump fails and needs to be dismantled for maintenance, each bolt on the flange must be removed to separate the feedwater pump and the valve. The dismantling process is time-consuming and labor-intensive and is not convenient for feedwater pump maintenance. Therefore, a connection structure and a feedwater pump are proposed to solve the above problems. Utility Model Content

[0003] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] In view of the above-mentioned prior art problems, the present utility model is proposed.

[0005] The utility model aims to provide a connection structure, which aims to solve the problem of pipe body connection.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a connection structure, comprising: a first pipe body assembly, comprising a first connection pipe, one end of the first connection pipe is provided with a plug-in terminal, a fastener is rotatably provided on the first connection pipe, the first connection pipe is located between the fastener and the plug-in terminal and is further provided with a limiting groove and a locking groove, and one end of the limiting groove is located at the connection between the first connection pipe and the plug-in terminal;

[0007] The second tube body assembly includes a second connecting tube, one end of which is rotatably connected to a locking end head, a slot is provided in the locking end head and extends into the second connecting tube, a limiting block is provided in the slot, a locking piece is provided on the locking end head, and clamping blocks are symmetrically provided on both sides of the locking end head.

[0008] As a preferred solution of the connection structure of the utility model, wherein: the fastener includes a movable ring, a first annular groove is provided on the first connecting tube, the movable ring is sleeved in the first annular groove of the first connecting tube, grooves are symmetrically provided on both sides of the movable ring, a pressure plate is provided in the groove, a buckle is rotatably provided on the pressure plate, a rotating shaft is inserted into one end of the pressure plate, and both ends of the rotating shaft are fixed in the groove of the movable ring.

[0009] As a preferred solution of the connection structure of the utility model, wherein: the limiting groove is an L-shaped structure, the limiting groove is rotationally symmetrically arranged on both sides of the first connecting pipe, and the locking groove is arranged between the two limiting grooves.

[0010] As a preferred solution of the connection structure of the utility model, one end of the second connecting tube is provided with a second annular groove, the locking end is clamped in the second annular groove of the second connecting tube, and a sealing gasket is also provided in the slot of the second connecting tube.

[0011] As a preferred solution of the connection structure of the utility model, wherein: the limit block is a cylindrical structure, the limit block is symmetrically arranged in the slot, and the angle between the limit block and the clamping block is 90 degrees.

[0012] As a preferred solution of the connection structure of the utility model, the locking member includes a threaded groove arranged on the end of the lock buckle and a locking pin threadedly connected to the threaded groove, the threaded groove is connected to the slot, and a knob is arranged at one end of the locking pin.

[0013] As a preferred scheme of the connection structure of the utility model, when the first tube body assembly is connected with the second tube body assembly, the first connecting tube and the plug-in end are inserted into the slot of the second connecting tube, and the limiting block cooperates with the limiting groove to realize the limited docking of the first connecting tube and the second connecting tube, and the buckle ring of the fastener is buckled on the block of the locking end to realize the fastening connection between the first connecting tube and the second connecting tube, and the locking pin of the locking member is screwed into the locking groove to realize the connection locking of the first connecting tube and the second connecting tube.

[0014] As a preferred solution of the connection structure of the utility model, wherein: buckle plates are symmetrically arranged on both sides of the first connecting pipe, and the buckle plates are located on one side of the first annular groove.

[0015] As a preferred solution of the connection structure of the utility model, wherein: an arc-shaped notch is provided on one side of the clamping block, and the arc-shaped notch of the clamping block matches with the buckle.

[0016] The beneficial effect of the connection structure of the utility model is as follows: by inserting the first connecting tube into the slot of the second connecting tube, the two connecting tubes are fastened by the cooperation of the fastener and the clamping block, and then the connection is locked by the cooperation of the locking member and the locking groove. When it is necessary to separate the first connecting tube and the second connecting tube, they can be separated by simply releasing the locking member and the fastener, so as to facilitate the separation and connection of the first connecting tube and the second connecting tube.

[0017] Another object of the utility model is to provide a water supply pump, which aims to solve the problem that when the water supply pump fails and needs to be dismantled for maintenance, each bolt on the flange must be removed to separate the water supply pump and the valve, and the dismantling process is time-consuming and labor-intensive and inconvenient for the maintenance of the water supply pump.

[0018] In order to solve the above technical problems, the utility model also provides the following technical solutions: a water supply pump, which includes a connection structure; and

[0019] A pump body assembly, comprising a base and a pump body arranged on the base;

[0020] Valve assembly, including water inlet valve and water outlet valve;

[0021] The pump body is connected to the water inlet valve and the water outlet valve through a connecting structure, the pump body is connected to the first connecting pipe, and the water inlet valve and the water outlet valve are connected to the second connecting pipe.

[0022] The beneficial effects of the water supply pump of the utility model are as follows: the water supply pump and the valve are connected by a connecting structure of a first connecting pipe and a second connecting pipe. When the water supply pump fails and needs to be dismantled for maintenance, the first connecting pipe and the second connecting pipe can be separated by releasing the locking piece and the fastener, which facilitates the dismantling of the water supply pump and improves the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0024] Figure 1 It is an overall schematic diagram of the utility model.

[0025] Figure 2 It is a half-section view of the first tube body assembly and the second tube body assembly of the utility model.

[0026] Figure 3 For the utility model Figure 2 A partial enlarged view of middle A.

[0027] Figure 4 It is an exploded view of the first tube body assembly and the second tube body assembly of the utility model. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1~Figure 4 , is the first embodiment of the utility model, which provides a connection structure, including, a first pipe body assembly 100, including a first connecting pipe 101, one end of the first connecting pipe 101 is provided with a plug terminal 101a, a fastener 102 is rotatably provided on the first connecting pipe 101, the first connecting pipe 101 is further provided with a limiting groove 101b and a locking groove 101c between the fastener 102 and the plug terminal 101a, and one end of the limiting groove 101b is located at the connection between the first connecting pipe 101 and the plug terminal 101a;

[0033] The second tube body assembly 200 includes a second connecting tube 201, one end of which is rotatably connected to a locking end 202, a slot 203 is provided in the locking end 202 and extends into the second connecting tube 201, a limiting block 204 is provided in the slot 203, a locking piece 205 is provided on the locking end 202, and blocks 206 are symmetrically provided on both sides of the locking end 202.

[0034] Furthermore, the limiting groove 101b is an L-shaped structure, the limiting groove 101b is rotationally symmetrically arranged on both sides of the first connecting pipe 101, and the locking groove 101c is arranged between the two limiting grooves 101b.

[0035] Furthermore, a sealing gasket 207 is disposed in the slot 203 of the second connecting tube 201 to seal between the plug-in terminal 101 a and the slot 203 .

[0036] Furthermore, the limit block 204 is a cylindrical structure, and the limit block 204 is symmetrically arranged in the slot 203, and the angle between the limit block 204 and the clamping block 206 is 90 degrees. It should be noted that the diameter of the limit block 204 matches the width of the limit slot 101b.

[0037] When the first tube body assembly 100 is connected to the second tube body assembly 200, the first connecting tube 101 and the plug-in end 101a are inserted into the slot 203 of the second connecting tube 201, and the limiting block 204 cooperates with the limiting groove 101b to realize the limited docking of the first connecting tube 101 and the second connecting tube 201, and the fastener 102 cooperates with the block 206 of the locking end 202 to realize the fastening connection between the first connecting tube 101 and the second connecting tube 201, and the locking piece 205 cooperates with the locking groove 101c to realize the connection locking of the first connecting tube 101 and the second connecting tube 201.

[0038] When in use, the first connecting tube 101 and the plug-in end 101a are inserted into the slot 203 of the second connecting tube 201 and the locking end 202, and the limiting block 204 in the locking end 202 is aligned with the notch of the limiting groove 101b of the first connecting tube 101, and the first connecting tube 101 is continuously pushed to make the limiting block 204 slide along the limiting groove 101b until the plug-in end 101a abuts against the sealing gasket in the slot 203, and then the fastener 102 is fastened to the block 206 on the locking end 202, so that the locking end 202 presses the sealing gasket, and the limiting block 204 slides to the limiting groove 101b, then rotate the fastener 102 and the locking end 202 to make the limit block 204 slide to the end of the limit groove 101b, and then insert the locking piece 205 on the locking end 202 into the locking groove 101c on the first connecting tube 101 to lock it, so as to realize the connection between the first connecting tube 101 and the second connecting tube 201. When it needs to be disassembled, move the locking piece 205 out of the locking groove 101c, and then separate the fastener 102 from the block 206, rotate the locking end 202, so that the limit block 204 slides out of the limit groove 101b, and the first connecting tube 101 and the second connecting tube 201 are disassembled.

[0039] In summary, this connection structure facilitates the separation and connection of the first connection pipe 101 and the second connection pipe 201 .

[0040] Example 2

[0041] Reference Figure 1~Figure 4 , which is the second embodiment of the utility model, comprises a first tube body assembly 100, comprising a first connecting tube 101, one end of the first connecting tube 101 is provided with a plug terminal 101a, a fastener 102 is rotatably provided on the first connecting tube 101, the first connecting tube 101 is further provided with a limiting groove 101b and a locking groove 101c between the fastener 102 and the plug terminal 101a, and one end of the limiting groove 101b is located at the connection between the first connecting tube 101 and the plug terminal 101a;

[0042] The second tube body assembly 200 includes a second connecting tube 201, one end of which is rotatably connected to a locking end 202, a slot 203 is provided in the locking end 202 and extends into the second connecting tube 201, a limiting block 204 is provided in the slot 203, a locking piece 205 is provided on the locking end 202, and blocks 206 are symmetrically provided on both sides of the locking end 202.

[0043] Further, the fastener 102 includes a movable ring 102a, a first annular groove 101d is provided on the first connecting tube 101, the movable ring 102a is sleeved in the first annular groove 101d of the first connecting tube 101, grooves 102a-1 are symmetrically provided on both sides of the movable ring 102a, a pressing plate 102b is provided in the groove 102a-1, a buckle ring 102c is rotatably provided on the pressing plate 102b, a rotating shaft 102d is inserted into one end of the pressing plate 102b, and both ends of the rotating shaft 102d are fixed in the groove 102a-1 of the movable ring 102a;

[0044] Furthermore, gusset plates 103 are symmetrically arranged on both sides of the first connecting pipe 101, and the gusset plates 103 are located on one side of the first annular groove 101d;

[0045] An arc-shaped notch is provided on one side of the clamping block 206 , and the arc-shaped notch of the clamping block 206 matches with the buckle ring 102 c , so that the buckle ring 102 c can be buckled in the arc-shaped notch of the clamping block 206 .

[0046] Furthermore, the limiting groove 101b is an L-shaped structure, the limiting groove 101b is rotationally symmetrically arranged on both sides of the first connecting pipe 101, and the locking groove 101c is arranged between the two limiting grooves 101b.

[0047] Furthermore, a second annular groove 201a is provided at one end of the second connecting tube 201, and the locking terminal 202 is clamped in the second annular groove 201a of the second connecting tube 201. A sealing gasket 207 is also provided in the slot 203 of the second connecting tube 201 for sealing between the plug-in terminal 101a and the slot 203.

[0048] Furthermore, the limit block 204 is a cylindrical structure, and the limit block 204 is symmetrically arranged in the slot 203, and the angle between the limit block 204 and the clamping block 206 is 90 degrees. It should be noted that the diameter of the limit block 204 matches the width of the limit slot 101b.

[0049] Furthermore, the locking member 205 includes a threaded groove 205a arranged on the locking end 202 and a locking pin 205b threadedly connected to the threaded groove 205a. The threaded groove 205a is connected to the slot 203, and a knob 205c is arranged at one end of the locking pin 205b. It should be noted that a thread matching the threaded groove 205a is arranged on the surface of the locking pin 205b, and the locking pin 205b is connected to the threaded groove 205a through threaded cooperation.

[0050] When the first tube body assembly 100 is connected to the second tube body assembly 200, the first connecting tube 101 and the plug-in end 101a are inserted into the slot 203 of the second connecting tube 201, and the limiting block 204 cooperates with the limiting groove 101b to realize the limited docking of the first connecting tube 101 and the second connecting tube 201, and the buckle 102c of the fastener 102 is buckled on the block 206 of the locking end 202 to realize the fastening connection between the first connecting tube 101 and the second connecting tube 201, and the locking pin 205b of the locking member 205 is screwed into the locking groove 101c to realize the connection locking of the first connecting tube 101 and the second connecting tube 201.

[0051] When in use, the first connecting tube 101 and the plug-in end 101a are inserted into the slot 203 of the second connecting tube 201 and the locking end 202, and the limiting block 204 in the locking end 202 is aligned with the notch of the limiting groove 101b of the first connecting tube 101, and the first connecting tube 101 is continuously pushed to make the limiting block 204 slide along the limiting groove 101b until the plug-in end 101a abuts against the sealing gasket in the slot 203, and then the buckle 102c of the fastener 102 is buckled on the block 206 of the locking end 202, and the pressing plate 102b is pressed to fasten the movable ring 102a and the locking end 202, so that the locking end 202 presses the sealing gasket, and the limiting block 204 slides to the corner of the limiting groove 101b. , then rotate the movable ring 102a and the locking end 202 to make the limit block 204 slide to the end of the limit groove 101b, and one end of the pressure plate 102b moves to the buckle plate 103 for limiting, and then rotate the knob 205c to screw the locking pin 205b into the locking groove 101c on the first connecting tube 101 for locking, so as to realize the connection between the first connecting tube 101 and the second connecting tube 201. When it needs to be disassembled, move the locking pin 205b out of the locking groove 101c, and then rotate the movable ring 102a and the locking end 202 until the limit block 204 slides to the corner of the limit groove 101b, open the pressure plate 102b to separate the buckle ring 102c from the block 206, and then disassemble the first connecting tube 101 and the second connecting tube 201.

[0052] In summary, this connection structure facilitates the separation and connection of the first connection pipe 101 and the second connection pipe 201 .

[0053] Example 3

[0054] Reference Figure 1 , which is the third embodiment of the utility model, this embodiment further provides a water supply pump, including a connection structure, and a pump body assembly 300, including a base 301 and a pump body 302 disposed on the base 301;

[0055] The valve assembly 400 includes a water inlet valve 401 and a water outlet valve 402;

[0056] The pump body 302 is connected to the water inlet valve 401 and the water outlet valve 402 via a connecting structure. The pump body 302 is connected to the first connecting pipe 101 , and the water inlet valve 401 and the water outlet valve 402 are connected to the second connecting pipe 201 .

[0057] In summary, the water pump and the valve are connected via the connection structure of the first connecting pipe 101 and the second connecting pipe 201. When the water pump fails and needs to be dismantled for maintenance, the first connecting pipe 101 and the second connecting pipe 201 can be disassembled by releasing the locking piece 205 and the fastener 102, which facilitates the dismantling of the water pump and improves the maintenance efficiency.

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0060] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A connection structure, characterized in that: include, The first tube body assembly (100) comprises a first connecting tube (101), one end of the first connecting tube (101) is provided with a plug-in terminal (101a), a fastener (102) is rotatably provided on the first connecting tube (101), a limiting groove (101b) and a locking groove (101c) are further provided on the first connecting tube (101) between the fastener (102) and the plug-in terminal (101a), and one end of the limiting groove (101b) is located at the connection between the first connecting tube (101) and the plug-in terminal (101a); The second tube body assembly (200) comprises a second connecting tube (201), one end of the second connecting tube (201) being rotatably connected to a locking end head (202), a slot (203) being provided in the locking end head (202) and extending into the second connecting tube (201), a limiting block (204) being provided in the slot (203), a locking piece (205) being provided on the locking end head (202), and clamping blocks (206) being symmetrically provided on both sides of the locking end head (202).

2. The connection structure according to claim 1, characterized in that: The fastener (102) comprises a movable ring (102a), the first connecting tube (101) is provided with a first annular groove (101d), the movable ring (102a) is sleeved in the first annular groove (101d) of the first connecting tube (101), grooves (102a-1) are symmetrically provided on both sides of the movable ring (102a), a pressure plate (102b) is provided in the groove (102a-1), a buckle ring (102c) is rotatably provided on the pressure plate (102b), a rotating shaft (102d) is inserted into one end of the pressure plate (102b), and both ends of the rotating shaft (102d) are fixed in the groove (102a-1) of the movable ring (102a).

3. The connection structure according to claim 2, characterized in that: The limiting groove (101b) is an L-shaped structure; the limiting groove (101b) is rotationally symmetrically arranged on both sides of the first connecting pipe (101); and the locking groove (101c) is arranged between the two limiting grooves (101b).

4. The connection structure according to claim 3, characterized in that: A second annular groove (201a) is provided at one end of the second connecting tube (201), the locking end (202) is clamped in the second annular groove (201a) of the second connecting tube (201), and a sealing gasket (207) is also provided in the slot (203) of the second connecting tube (201).

5. The connection structure according to claim 4, characterized in that: The limiting block (204) is a cylindrical structure, the limiting block (204) is symmetrically arranged in the slot (203), and the angle between the limiting block (204) and the clamping block (206) is 90 degrees.

6. The connection structure according to claim 5, characterized in that: The locking member (205) comprises a thread groove (205a) provided on the locking end (202) and a locking pin (205b) threadedly connected in the thread groove (205a); the thread groove (205a) is communicated with the slot (203); and a knob (205c) is provided at one end of the locking pin (205b).

7. The connection structure according to claim 6, characterized in that: When the first tube body assembly (100) is connected to the second tube body assembly (200), the first connecting tube (101) and the plug-in end (101a) are inserted into the slot (203) of the second connecting tube (201), and the limiting block (204) cooperates with the limiting groove (101b) to achieve the limited docking of the first connecting tube (101) and the second connecting tube (201), and the buckle (102c) of the fastener (102) is buckled on the clamping block (206) of the locking end (202) to achieve the fastening connection between the first connecting tube (101) and the second connecting tube (201), and the locking pin (205b) of the locking member (205) is screwed into the locking groove (101c) to achieve the connection locking of the first connecting tube (101) and the second connecting tube (201).

8. The connection structure according to claim 2 or 7, characterized in that: Buckle plates (103) are symmetrically arranged on both sides of the first connecting pipe (101), and the buckle plates (103) are located on one side of the first annular groove (101d).

9. The connection structure according to claim 8, characterized in that: An arc-shaped notch is provided on one side of the clamping block (206), and the arc-shaped notch of the clamping block (206) matches the buckle (102c).

10. A water supply pump, characterized in that: comprising a connection structure as claimed in any one of claims 1 to 8; and A pump body assembly (300) comprises a base (301) and a pump body (302) disposed on the base (301); A valve assembly (400) comprising a water inlet valve (401) and a water outlet valve (402); The pump body (302) is connected to the water inlet valve (401) and the water outlet valve (402) via a connection structure; the pump body (302) is connected to the first connecting pipe (101); and the water inlet valve (401) and the water outlet valve (402) are connected to the second connecting pipe (201).

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