A pump head assembly structure

Abstract

The utility model relates to pump head technical field provides a pump head assembly structure, including pump head body, the pump head body is opened in and has the pump head inner runner, the pump head inner runner from below to above installs liquid suction valve module, spacer and liquid discharge valve module in proper order, liquid suction valve module and liquid discharge valve module structure are same, all include spring seat, spring, guide bush, valve core and valve seat, the guide bush is installed in spring seat inside, the upper portion of valve core with the inner wall movable joint of guide bush, the lower portion of valve core with valve seat movable joint, the upper portion of spring with spring seat connection, the lower portion of spring with valve core connection, spring seat with valve seat connection is integral. The utility model provides liquid discharge valve module and liquid suction valve module adopt same cone valve structure, use spacer and separate between two valve modules, adopt upper gland and upper cover plate to fix with upper end, simplify pump head structure by this, reduce pump head spare parts kind, facilitate assembly maintenance.

Description

Technical Field

[0001] This utility model relates to the field of pump head technology, and more specifically, to a pump head assembly structure. Background Technology

[0002] In traditional fully mechanized mining faces, the pump head structure of emulsion pumps and spray pumps uses a cone valve with guide vanes at the discharge end, and the discharge valve core spring seat and upper pressure cover are integrated. The suction end uses a flat valve, and the suction valve core spring seat and spacer are integrated. The different structures of the suction end and discharge end lead to a variety of pump head parts and inconvenient assembly and maintenance.

[0003] Existing technologies mainly involve treating the pump head, pump motor, and other pump body components as separate modules, allowing for the replacement of a single component. However, the internal structure of the pump head remains traditional, and the variety of internal parts is not reduced, making maintenance and replacement inconvenient. Alternatively, the suction valve or discharge valve can be treated as separate modules, allowing for the replacement of the entire valve module. However, due to their different structures, the suction and discharge valves cannot be interchanged, necessitating the preparation of several spare parts to meet the maintenance needs of the pump head. Utility Model Content

[0004] To address the problem of the numerous internal components of pump heads in existing technologies, making maintenance and replacement inconvenient, this utility model provides a pump head assembly structure.

[0005] In view of this, one aspect of the present invention provides a pump head assembly structure, including a pump head body, wherein an internal flow channel is formed in the pump head body, and a suction valve module, a spacer, and a discharge valve module are sequentially installed from bottom to top in the internal flow channel; the suction valve module and the discharge valve module have the same structure, each including a spring seat, a spring, a guide sleeve, a valve core, and a valve seat, wherein the guide sleeve is installed inside the spring seat, the spring seat is located above the valve seat and connected to the valve seat, one end of the valve core is movably connected to the valve seat, the other end of the valve core is movably connected to the guide sleeve, and the spring is connected between the spring seat and the valve core.

[0006] In some embodiments, the spring seat has a mounting post on the side facing the valve core, the spring is sleeved on the outer periphery of the mounting post, and a first mounting hole is opened on the mounting post, in which the guide sleeve is installed.

[0007] In some embodiments, the valve seat is provided with a first connecting portion, and the spring seat is provided with a second connecting portion extending toward the valve seat. The first connecting portion and the second connecting portion are mated and connected together by threads.

[0008] In some embodiments, the valve seat has a valve port, the inner wall of the valve port has a first conical portion, and the valve core has a second conical portion that cooperates with the first conical portion.

[0009] In some embodiments, the second tapered portion has a sealing ring mounting groove along its circumference, and a sealing ring is installed in the sealing ring mounting groove.

[0010] In some embodiments, the valve core is provided with a first spring mounting groove, the spring seat is provided with a second spring mounting groove, and the spring is located between the first spring mounting groove and the second spring mounting groove.

[0011] In some embodiments, the pump head body is provided with a stepped portion for installing the suction valve module, and the top of the spacer is provided with a drain valve mounting groove for installing the drain valve module.

[0012] In some embodiments, the pump head body is further provided with a suction channel, which is located below the suction valve module and communicates with the inner channel of the pump head; the pump head body is provided with a discharge channel, which is located above the discharge valve module and communicates with the inner channel of the pump head; the top of the discharge valve module is provided with an upper pressure cover, the annular edge of the upper pressure cover is provided with a pressing part connected to the discharge valve module, and the side wall of the upper pressure cover is provided with a flow groove communicating with the discharge channel; the pressing part is arranged around the axis of the upper pressure cover.

[0013] In some embodiments, the upper pressure cover seals the top of the flow channel inside the pump head, an upper cover plate is installed on the top of the pump head body, the upper cover plate is connected to the upper pressure cover, and a lower cover plate is installed on the bottom of the pump head body.

[0014] In some embodiments, the spacer is a sleeve structure, one side of which is connected to the pump head body via a locating pin, and the other side of which is used to connect to the plunger.

[0015] The drain valve module and the suction valve module provided in this embodiment of the utility model both adopt the same cone valve structure. The two valve modules are separated by a spacer, and the upper end is fixed by an upper pressure cap and an upper cover plate, thereby simplifying the pump head structure, reducing the types of pump head parts, facilitating assembly and maintenance, and reducing maintenance costs.

[0016] To make the above-mentioned objects, features and advantages of the present utility model embodiments more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method. The accompanying drawings, which are provided to further understand the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the pump head assembly structure provided in the first embodiment of the present invention. Figure 1 ;

[0019] Figure 2 A schematic diagram of the suction valve module structure of the pump head assembly provided in this embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the spring seat structure of the pump head assembly provided in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the upper pressure cover structure of the pump head assembly provided in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the pump head assembly structure provided in the second embodiment of the present invention. Figure 2 .

[0023] Among them, the above-mentioned appendix Figures 1 to 5 The following reference numerals are included:

[0024] 100-Suction valve module; 101-Suction valve spring seat; 102-Suction valve spring; 103-Suction valve guide sleeve; 104-Suction valve seat; 105-Suction valve core; 200-Drain valve module; 201-Drain valve spring seat; 202-Drain valve spring; 203-Drain valve guide sleeve; 204-Suction valve seat; 205-Drain valve core; 300-Pump head body; 301-Pump head inner flow channel; 302-Plunger hole; 303-Suction flow channel; 3 04-Drainage channel; 400-Upper pressure cap; 401-Pressure fitting part; 402-Flow groove; 500-Upper cover plate; 600-Spacer sleeve; 601-Through hole; 700-Positioning pin; 800-Lower cover plate; 1-Spring seat; 11-First mounting hole; 12-Second spring mounting groove; 13-Mounting column; 2-Spring; 3-Guide sleeve; 4-Valve seat; 41-Valve port; 5-Valve core; 51-First spring mounting groove; 52-Sealing ring mounting groove; 6-Sealing ring. Detailed Implementation

[0025] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but these are not intended to limit the scope of the present invention.

[0026] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this invention will be apparent to those skilled in the art.

[0027] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0028] These and other features of the present invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0029] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of the present invention, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0030] The above and other aspects, features and advantages of the present invention will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0031] Specific embodiments of the present invention will now be described with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present invention, which may be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the present invention. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of substantially any suitable detailed structures.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to the present invention.

[0034] like Figure 1 and Figure 2 As shown, the first embodiment of this disclosure provides a pump head assembly structure, which includes a pump head body 300. The pump head body 300 has an internal flow channel 301. A valve group module is installed in the internal flow channel 301. The valve group module includes a suction valve module 100 and a discharge valve module 200. The suction valve module 100 and the discharge valve module 200 are installed from bottom to top in the internal flow channel 301. A plunger hole 302 communicating with the internal flow channel 301 is opened on the pump head body 300 between the suction valve module 100 and the discharge valve module 200. The plunger can slide in the plunger hole 302 to realize the suction and discharge functions of the pump head.

[0035] Specifically, in this embodiment, during the suction stroke, the plunger slides along the plunger hole 302 away from the pump head inner flow channel 301, reducing the pressure in the pump head inner flow channel 301. The suction valve module 100 opens, and the discharge valve module 200 closes, allowing the liquid medium to be drawn in through the suction flow channel 303 and into the pump head inner flow channel 301 via the suction module. During the discharge stroke, the plunger slides closer to the pump head inner flow channel 301, compressing the fluid. The suction valve module 100 closes, and the discharge valve module 200 opens, allowing the fluid to pass through the pump head inner flow channel 301 via the discharge module and then be discharged from the discharge flow channel 304, thus realizing the pumping of the liquid medium.

[0036] Furthermore, in this embodiment, in order to reduce the types of internal components of the pump head assembly, the suction valve module 100 and the discharge valve module 200 have the same structure, so that the suction valve module 100 and the discharge valve module 200 can be interchanged, which facilitates their maintenance and replacement, and eliminates the need to prepare several types of spare parts to meet the maintenance and use of the pump head assembly.

[0037] Specifically, both the suction valve module 100 and the discharge valve module 200 include a spring seat 1, a spring 2, a guide sleeve 3, a valve core 5, and a valve seat 4, as shown below. Figure 3 As shown, the spring seat 1 has a first mounting hole 11 inside, and the guide sleeve 3 is installed in the first mounting hole 11. The upper part of the valve core 5 is movably connected to the inner wall of the guide sleeve 3, and the lower part of the valve core 5 is movably connected to the valve seat 4. The valve seat 4 has a valve port 41, and the valve core 5 is installed at the valve port 41. When the valve core 5 moves upward and disengages from the valve seat 4, the valve port 41 opens, and the liquid medium can pass through the valve port 41. When the valve core 5 moves downward and contacts the valve seat 4, the valve port 41 closes. Preferably, the valve port 41 is conical, which makes the valve core 5 require less opening and closing force and is lightweight and flexible.

[0038] Furthermore, the spring seat 1 is provided with a mounting post 13 on the side facing the valve core 5, the spring 2 is sleeved on the outer periphery of the mounting post 13, and the mounting post 13 is provided with the first mounting hole for mounting the guide sleeve 3.

[0039] Specifically, the valve core 5 has a first spring mounting groove 51, the spring seat 1 has a second spring mounting groove 12, the upper part of the spring 2 is mounted in the first spring mounting groove 51, and the lower part of the spring 2 is mounted in the second spring mounting groove 12. The spring can provide a clamping force to the valve core 5, which can help the valve core 5 to quickly reset and realize the closure of the valve port 41.

[0040] More specifically, in this embodiment, the inner wall of the valve port 41 is provided with a first conical part, and the valve core 5 has a second conical part that cooperates with the first conical part. The second conical part is provided with a sealing ring mounting groove 52 along its circumference. A sealing ring 6 is installed on the sealing ring mounting groove 52. The sealing ring 6 can enhance the sealing effect of the valve seat 4 and the valve core 5, and play a certain role in reducing impact.

[0041] More specifically, in this embodiment, the lower part of the spring seat 1 is threadedly connected to the valve seat 4 to form an integral unit, which enables the integrated disassembly of the liquid suction module and the liquid discharge module, making it more convenient and simple. Specifically, the valve seat 4 is provided with a first connecting part, and the spring seat 1 is provided with a second connecting part extending toward the valve seat 4. Preferably, the second connecting part is stepped, the first connecting part is provided with an external thread, and the second connecting part is provided with an internal thread that matches the external thread.

[0042] In this embodiment, in order to facilitate the disassembly of the pump head components, a threaded hole is provided at the upper end of the spring seat 1. When it is necessary to disassemble the liquid suction module and / or the liquid discharge module, the operator can use a screw tool to connect to the threaded hole and remove the liquid suction module and / or the liquid discharge module by lifting the screw.

[0043] In this embodiment, in order to separate the liquid suction module and / or the liquid drainage module, a spacer 600 is provided between the liquid suction module and the liquid drainage module. The spacer 600 is a hollow structure with both ends open. The side wall of the spacer 600 is also provided with a through hole 601 communicating with the plunger hole 302. During the liquid drainage process, the plunger can enter the spacer 600 through the through hole 601 to squeeze the liquid medium.

[0044] Furthermore, in this embodiment, in order to achieve circumferential positioning of the spacer 600, the spacer 600 is provided with a positioning groove, and the pump head body 300 is provided with a second mounting hole corresponding to the positioning groove. The mounting hole and the positioning groove are connected by a positioning pin 700, thereby achieving circumferential positioning of the spacer 600.

[0045] In this embodiment, in order to position the suction valve module 100, the discharge valve module 200 and the spacer 600 axially within the pump head body 300, an upper pressure cover 400 is provided above the discharge valve module 200, an upper cover plate 500 is provided above the upper pressure cover 400, and a lower cover plate 800 is installed below the pump head body 300.

[0046] Specifically, such as Figure 4As shown, the annular edge of the upper pressure cap is provided with a pressing part 401 that connects to the drain valve module, used to fix the drain valve module 200, the spacer 600, and the suction valve module 100 in the axial direction; the side wall of the upper pressure cap is provided with a flow groove 402 that communicates with the drain channel, allowing the liquid medium to enter the drain channel 304 through the flow groove 402. More specifically, the pressing part 401 is arranged around the axis of the upper pressure cap 400, which allows the spring seat 1 to be subjected to uniform force and has a better pressing effect.

[0047] Furthermore, the pump head body 300 is provided with a stepped portion, which is used to install the liquid suction valve module 100 and to achieve axial positioning of the liquid suction valve module 100; the upper end of the spacer 600 is also provided with a drain valve mounting groove, which is used to install the drain valve module 200 and to achieve axial positioning of the drain valve module 200.

[0048] To facilitate the description of the operation of the pump head assembly, the internal components of the suction valve module 100 and the discharge valve module 200 are distinguished and given different names. However, the structure and installation method of the suction valve module 100 and the discharge valve module 200 are exactly the same, as detailed below:

[0049] The suction valve module 100 includes a suction valve spring seat 101, a suction valve spring 102, a suction valve guide sleeve 103, a suction valve core 105, and a suction valve seat 104; the discharge valve module 200 includes a discharge valve spring seat 201, a discharge valve spring 202, a discharge valve guide sleeve 203, a discharge valve core 205, and a suction valve seat 204; the suction flow channel 303 is located below the inner flow channel 301 of the pump head for the entry of liquid medium; the discharge flow channel 304 is located above the inner flow channel 301 of the pump head for the discharge of liquid medium.

[0050] During the suction stroke, the plunger slides along the plunger hole 302 away from the pump head inner flow channel 301, the pressure in the pump head inner flow channel 301 decreases, the suction valve core 105 moves upward, the valve port 41 at the suction valve seat 104 opens, the discharge valve core 205 closes, and the liquid medium is drawn in through the suction flow channel 303 and enters the pump head inner flow channel 301 through the valve port 41 at the suction valve seat 104;

[0051] During the discharge stroke, the plunger slides towards the inner flow channel 301 of the pump head, squeezing the fluid. The suction valve core 105 resets under the pressure of the liquid medium and the elastic force of the suction valve spring 102, and the valve port 41 at the suction valve seat 104 closes. The discharge valve core 205 moves upward, and the valve port 41 at the suction valve seat 204 opens. The fluid passes through the valve port 41 at the suction valve seat 204 from the inner flow channel 301 of the pump head, and then is discharged from the discharge flow channel 304, thus realizing the pumping of the liquid medium.

[0052] In this embodiment of the utility model, both the drain valve module 200 and the suction valve module 100 adopt the same cone valve structure. The two valve modules are separated by a spacer 600, and the upper end is fixed by an upper pressure cap 400 and an upper cover plate 500. This simplifies the pump head structure, reduces the types of pump head parts, facilitates assembly and maintenance, and reduces maintenance costs.

[0053] like Figure 5 As shown, the second embodiment of this disclosure provides a pump head assembly structure, which includes a pump head body 300. Multiple pump head internal flow channels 301 are formed within the pump head body 300. Each pump head internal flow channel 301 is equipped with a valve assembly module, which includes a suction valve module 100 and a discharge valve module 200. The suction valve module 100 and the discharge valve module 200 are installed from bottom to top on the pump head internal flow channel 301. A plunger hole 302 communicating with the pump head internal flow channel 301 is formed on the pump head body 300 between the suction valve module 100 and the discharge valve module 200. The plunger can slide in the plunger hole 302 to realize the suction and discharge functions of the pump head.

[0054] During the suction stroke, the plunger slides along the plunger hole 302 away from the pump head inner flow channel 301, reducing the pressure in the pump head inner flow channel 301. The suction valve module 100 opens, and the discharge valve module 200 closes, allowing the liquid medium to be drawn in through the suction flow channel 303 and into the pump head inner flow channel 301. During the discharge stroke, the plunger slides closer to the pump head inner flow channel 301, compressing the fluid. The suction valve module 100 closes, and the discharge valve module 200 opens, allowing the fluid to pass through the pump head inner flow channel 301 and the discharge valve module 200, and then be discharged from the discharge flow channel 304. Several valve modules in the pump head cycle through the above strokes to achieve the pumping of the liquid medium.

[0055] This embodiment has the same structure as the liquid suction valve module 100, liquid discharge valve module 200, and spacer 600 in the first embodiment, and will not be described in detail here.

[0056] In the above embodiments of this utility model, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0057] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0058] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pump head assembly structure, characterized in that, The device includes a pump head body, within which an internal flow channel is formed. From bottom to top, a suction valve module, a spacer, and a discharge valve module are sequentially installed within the internal flow channel. The suction valve module and the discharge valve module have identical structures, each including a spring seat, a spring, a guide sleeve, a valve core, and a valve seat. The guide sleeve is installed inside the spring seat, which is located above and connected to the valve seat. One end of the valve core is movably connected to the valve seat, and the other end is movably connected to the guide sleeve. The spring connects the spring seat and the valve core.

2. The pump head assembly structure according to claim 1, characterized in that, The spring seat has a mounting post on the side facing the valve core, the spring is sleeved on the outer periphery of the mounting post, and a first mounting hole is opened on the mounting post, in which the guide sleeve is installed.

3. The pump head assembly structure according to claim 1, characterized in that, The valve seat is provided with a first connecting part, and the spring seat is provided with a second connecting part extending toward the valve seat. The first connecting part and the second connecting part are mated and connected as one unit by threads.

4. The pump head assembly structure according to claim 1, characterized in that, The valve seat has a valve port, the inner wall of the valve port has a first conical part, and the valve core has a second conical part that cooperates with the first conical part.

5. The pump head assembly structure according to claim 4, characterized in that, The second conical portion has a sealing ring mounting groove along its circumference, and a sealing ring is installed in the sealing ring mounting groove.

6. The pump head assembly structure according to claim 1, characterized in that, The valve core has a first spring mounting groove, the spring seat has a second spring mounting groove, and the spring is located between the first spring mounting groove and the second spring mounting groove.

7. The pump head assembly structure according to claim 1, characterized in that, The pump head body has a stepped portion for installing the suction valve module, and the top of the spacer has a drain valve mounting groove for installing the drain valve module.

8. The pump head assembly structure according to claim 1, characterized in that, The pump head body is also provided with a liquid suction channel, which is located below the liquid suction valve module and communicates with the internal flow channel of the pump head; the pump head body is provided with a liquid discharge channel, which is located above the liquid discharge valve module and communicates with the internal flow channel of the pump head; the top of the liquid discharge valve module is provided with an upper pressure cover, the annular edge of the upper pressure cover is provided with a pressing part that connects to the liquid discharge valve module, and the side wall of the upper pressure cover is provided with a flow groove that communicates with the liquid discharge channel; the pressing part is arranged around the axis of the upper pressure cover.

9. The pump head assembly structure according to claim 8, characterized in that, The upper pressure cover seals the top of the inner flow channel of the pump head. An upper cover plate is installed on the top of the pump head body, and the upper cover plate is connected to the upper pressure cover. A lower cover plate is installed at the bottom of the pump head body.

10. The pump head assembly structure according to claim 1, characterized in that, The spacer is a sleeve structure, one side of which is connected to the pump head body via a positioning pin, and the other side of which is used to connect to the plunger.

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