Wear-resistant plunger of plunger pump

Abstract

The utility model discloses a wear-resistant plunger of a plunger pump, which relates to the technical field of plungers and comprises a connecting rod mechanism, a plunger mechanism and the like, the connecting rod mechanism comprises a main rod, one end of the main rod is provided with a containing groove, an auxiliary rod is arranged in the containing groove in a sliding mode, and the end of the auxiliary rod is provided with a rod head. According to the device, the two clamping pieces are clamped into the two clamping grooves of the main rod so that the connecting rod mechanism and the plunger mechanism can be fixed, the clamping pieces of the device are all arranged on the plunger mechanism, the clamping pieces cannot be lost after being disassembled, and the device is convenient to use. The plunger mechanism and the connecting rod mechanism cannot be connected, meanwhile, only two clamping pieces need to be pressed inwards during disassembly, operation is easy, operation of workers is facilitated, the connecting rod mechanism of the device is telescopic, the length of the portion, stretching out of the main rod, of the auxiliary rod can be adjusted, and therefore the length of the whole connecting rod mechanism can be adjusted, and the connecting rod mechanism can adapt to various working environments; and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plungers, in particular to a wear-resistant plunger for a plunger pump. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. Therefore, the plunger is one of the core components of the plunger pump.

[0003] For example, the patent website discloses a wear-resistant plunger for a plunger pump (publication number: CN220319800U). The device uses a through pin to fix the connecting rod and the plunger body. The through pin will detach from the device during disassembly. However, the through pin is small and is easily lost. If the through pin is lost, the plunger body and the connecting rod cannot be fixedly connected. Therefore, those skilled in the art have proposed a wear-resistant plunger for a plunger pump. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a wear-resistant plunger of a plunger pump. The device utilizes the snap-fit ​​principle to connect the connecting rod mechanism and the plunger mechanism to solve the problem that the through pin is easily lost in the above background.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a wear-resistant plunger of a plunger pump, comprising:

[0006] A connecting rod mechanism, which can be extended and retracted to be suitable for various working environments;

[0007] The connecting rod mechanism comprises a main rod, one end of which is provided with a receiving groove, a secondary rod is slidably arranged in the receiving groove, a rod head is installed at the end of the secondary rod, a positioning hole connected to the receiving groove is provided at the side of the main rod near the end of the receiving groove, a plurality of evenly distributed threaded holes are provided on the surface of the secondary rod, and a bolt is provided between the positioning hole and the threaded hole aligned with the positioning hole;

[0008] The plunger mechanism and the connecting rod mechanism together constitute the plunger.

[0009] As a further technical solution of the utility model, the plunger mechanism includes a fixing groove formed at the other end of the main rod, two slots communicating with the fixing groove are formed on the side of the main rod, and a fixing seat is provided in the fixing groove.

[0010] As a further technical solution of the utility model, a cavity is opened inside the fixing seat, and two limit plates are correspondingly arranged inside the cavity. A spring is arranged inside the cavity between the two limit plates, and a card extending into the corresponding card slot is installed at the center of the side of each limit plate.

[0011] As a further technical solution of the utility model, a shell is provided on one side of the main rod, a plunger is provided in the shell, and an empty groove is provided at the end of the plunger.

[0012] As a further technical solution of the utility model, an inner slider is slidably arranged in the empty slot, a side surface of the inner slider is fixedly connected to a fixing seat, and a spring whose end is fixedly connected to the inner wall of the empty slot is installed on the other side surface of the inner slider.

[0013] Beneficial Effects

[0014] The utility model provides a wear-resistant plunger for a plunger pump. Compared with the prior art, it has the following beneficial effects:

[0015] 1. A wear-resistant plunger of a plunger pump. The device uses two clamps to be inserted into two clamping grooves of a main rod to fix a connecting rod mechanism and a plunger mechanism. The clamps of the device are all set on the plunger mechanism and will not be lost after disassembly, and will not cause the plunger mechanism and the connecting rod mechanism to be unable to connect. At the same time, when disassembling, only two clamps need to be pressed internally, which is simple to operate and convenient for staff to operate.

[0016] 2. A wear-resistant plunger of a plunger pump. The connecting rod mechanism of the device is of a retractable type. The length of the auxiliary rod extending out of the main rod can be adjusted to adjust the length of the entire connecting rod mechanism, so that the connecting rod mechanism can adapt to a variety of working environments, thereby increasing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a wear-resistant plunger of a plunger pump;

[0018] Figure 2 A cross-sectional view of a wear-resistant plunger of a plunger pump;

[0019] Figure 3 for Figure 2 Enlarged view of part A;

[0020] Figure 4 This is a disassembly diagram of the main body of a wear-resistant plunger of a plunger pump;

[0021] Figure 5 This is a disassembled anatomical view of the connecting rod of a wear-resistant plunger of a plunger pump.

[0022] In the figure: 1. main rod; 2. fixing groove; 3. fixing seat; 4. cavity; 5. limit plate; 6. clamping groove; 7. clamping piece; 8. spring; 9. housing; 10. plunger; 11. empty groove; 12. inner slider; 13. spring; 14. storage groove; 15. auxiliary rod; 16. rod head; 17. positioning hole; 18. threaded hole; 19. bolt. DETAILED DESCRIPTION

[0023] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0026] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0027] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0028] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0029] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0030] like Figure 1-5 As shown, a wear-resistant plunger of a plunger pump disclosed in the present invention may include: components such as a connecting rod mechanism and a plunger mechanism;

[0031] like Figure 1-5 As shown, the connecting rod mechanism includes a main rod 1, a receiving groove 14, a secondary rod 15, a rod head 16, a positioning hole 17, a threaded hole 18, and a bolt 19;

[0032] The receiving groove 14 is provided at the end of the main rod 1, the auxiliary rod 15 is slidably provided in the receiving groove 14, the rod head 16 is installed at the end of the auxiliary rod 15 extending to the outside of the receiving groove 14, the positioning hole 17 is provided on the side of the main rod 1 and close to the end of the receiving groove 14, a plurality of threaded holes 18 are evenly provided on the side of the auxiliary rod 15, and the bolt 19 is provided between the positioning hole 17 and the threaded hole 18 aligned therewith;

[0033] When adjusting the length of the connecting rod mechanism, the positioning hole 17 is screwed out, and then the outer pull rod head 16 drives the auxiliary rod 15 to move outward from the main rod 1, thereby increasing the length of the entire connecting rod mechanism until the connecting rod mechanism reaches a predetermined length, and then the positioning hole 17 is aligned with the nearest threaded hole 18, and the threaded hole 18 is screwed into the positioning hole 17 and the threaded hole 18 aligned therewith, thereby fixing the main rod 1 and the auxiliary rod 15, and the length adjustment of the connecting rod mechanism is completed;

[0034] like Figure 1-5 As shown, the plunger mechanism includes a fixing groove 2, a fixing seat 3, a cavity 4, a limit plate 5, a clamping groove 6, a clamping member 7, a spring 8, a housing 9, a plunger 10, a hollow groove 11, an inner slider 12, and a spring 13;

[0035] The fixing groove 2 is provided at the other end of the main rod 1, the housing 9 is provided at one side of the main rod 1, the plunger 10 is provided in the housing 9, the empty groove 11 is provided at the end of the plunger 10, the inner slider 12 is slidably provided in the empty groove 11, the spring 13 is installed on the side of the inner slider 12 and the end is fixedly connected to the inner wall of the empty groove 11, the fixing seat 3 is provided in the fixing groove 2 and the side is fixedly connected to the inner slider 12, the cavity 4 is provided inside the fixing seat 3, the two card slots 6 are provided on the side of the main rod 1 and are connected to the fixing groove 2, the two limit plates 5 are provided in the cavity 4, the spring 8 is provided in the cavity 4 and is located between the two limit plates 5, and the two clamps 7 are respectively installed at the side centers of the two limit plates 5 and extend to the corresponding card slots 6;

[0036] During disassembly, the outer pull rod head 16 drives the inner slider 12 to move outward from the plunger 10 through the connecting rod mechanism, thereby stretching the spring 13 until the inner slider 12 moves out of the plunger 10, and then the two clamps 7 are pressed inside to make it disengage from the slot 6 and enter the cavity 4, and the two moving clamps 7 are used to compress the spring 8 through the limit plate 5, and when the clamps 7 move out of the slot 6, the connection between the fixing seat 3 and the main rod 1 is released, and they are separated, thereby separating the connecting rod mechanism from the plunger mechanism;

[0037] During installation, you only need to press the two clips 7 inwardly through the above operation to let them enter the cavity 4, then insert the fixing seat 3 into the fixing groove 2 of the main rod 1, let the inner wall of the fixing groove 2 limit the clip 7, then rotate the main rod 1 to align the two slots 6 with the two clips 7, and let the spring 8 rebound without squeezing to drive the two clips 7 to restore their positions and insert them into the two slots 6, so as to fix the main rod 1 and the fixing seat 3 and complete the installation.

[0038] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] Those skilled in the art will appreciate that the above embodiments are only intended to clearly illustrate the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A wear-resistant plunger for a plunger pump, characterized in that: include: A connecting rod mechanism, which can be extended and retracted to be suitable for various working environments; The connecting rod mechanism comprises a main rod (1), one end of the main rod (1) is provided with a receiving groove (14), a secondary rod (15) is slidably arranged in the receiving groove (14), a rod head (16) is installed at the end of the secondary rod (15), a positioning hole (17) connected to the receiving groove (14) is provided on the side of the main rod (1) near the end of the receiving groove (14), a plurality of evenly distributed threaded holes (18) are provided on the surface of the secondary rod (15), and a bolt (19) is provided between the positioning hole (17) and the threaded hole (18) aligned with the positioning hole (17); The plunger mechanism and the connecting rod mechanism together constitute the plunger.

2. A wear-resistant plunger for a plunger pump according to claim 1, characterized in that: The plunger mechanism comprises a fixing groove (2) provided at the other end of the main rod (1), two clamping grooves (6) communicating with the fixing groove (2) are correspondingly provided on the side surface of the main rod (1), and a fixing seat (3) is provided in the fixing groove (2).

3. A wear-resistant plunger for a plunger pump according to claim 2, characterized in that: A cavity (4) is provided inside the fixing seat (3), two limiting plates (5) are correspondingly arranged inside the cavity (4), a spring (8) is arranged inside the cavity (4) between the two limiting plates (5), and a clamping member (7) extending into a corresponding clamping slot (6) is installed at the center of the side surface of each limiting plate (5).

4. The wear-resistant plunger of a plunger pump according to claim 1, characterized in that: A shell (9) is provided on one side of the main rod (1), a plunger (10) is provided inside the shell (9), and a hollow groove (11) is provided at the end of the plunger (10).

5. The wear-resistant plunger of a plunger pump according to claim 4, characterized in that: An inner slider (12) is slidably disposed in the hollow groove (11), a side surface of the inner slider (12) is fixedly connected to the fixing seat (3), and a spring (13) whose end is fixedly connected to the inner wall of the hollow groove (11) is installed on the other side surface of the inner slider (12).

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