Plunger pump with good safety

Abstract

The utility model relates to the technical field of plunger pump devices, in particular to a plunger pump with good safety, which comprises a plunger pump body, a turntable is arranged at the front end of the plunger pump body, the front end of the turntable is in contact with a piston rod, a large spring is sleeved on the outer side of the piston rod, the tail end of the piston rod corresponds to a contact head, and the contact head is arranged on a cylinder cover. A cylinder barrel is arranged at the front end of the cylinder cover and internally comprises a cylinder base shell and a sealing plate, the cylinder base shell and the sealing plate are connected and fixed through a connecting assembly, the connecting assembly internally comprises a column head and an outer barrel, the outer barrel is fixed to one side of the column head, the column head in the connecting assembly can drive the outer barrel to move, and a locking ring structure is arranged on the outer side of an inner column. According to the connecting structure, the inner column can be limited and is in contact and fixed through the small spring structure, and the inner small sealing ring and the outer large sealing ring can be fixed in the inner column and the locking frame through the arc-shaped grooves, so that the connecting effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pump devices, in particular to a plunger pump with good safety. Background Art

[0002] The plunger pump is a crucial component of hydraulic systems. It relies on the reciprocating motion of the plunger within the cylinder, causing the volume of the sealed working chamber to change, thereby absorbing and compressing oil. Plunger pumps offer advantages such as high rated pressure, compact structure, high efficiency, and easy flow control.

[0003] In order to reduce the size of the plunger pump in the prior art, the pump body and the plunger are usually directly exposed. When working in the low-pressure area, the operating frequency is high, and the plunger and other components are exposed. There are certain safety hazards in the working area. At the same time, it is easily affected by environmental factors. In addition, the lubricating oil on the surface of the plunger is easily affected by dust in the air, which makes the equipment easily damaged by friction. For example, a safety mechanism of a mud hydraulic plunger pump mentioned in publication number CN102913436B, when actually used, the cylinder barrel on the outside of this structure is subjected to greater pressure, and at the same time, it needs to meet the effect of rapid disassembly and maintenance. Therefore, it is imperative to design a plunger pump with good safety that meets the above requirements. Utility Model Content

[0004] Technical problems solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a plunger pump with good safety. Through the provided connecting assembly, the user can connect and fix the cylinder and the cylinder cover with the connecting assembly, and when connecting, the column head in the connecting assembly can drive the outer cylinder to move, and a locking ring structure is provided on the outside of the inner column, which can limit the inner column inside and be contacted and fixed through the small spring structure therein, and the small sealing ring inside and the large sealing ring structure outside can be fixed in the inner column and the locking frame through the arc groove to achieve the connection effect, and the piston rod structure is provided, and the large spring structure on the outside can be used for auxiliary retraction and extension of the piston rod, and the contact head structure can be used for contact connection with the piston rod to transmit power to the outside; it can effectively solve the problem in the prior art that the cylinder on the outside is subjected to greater pressure during actual use, and at the same time needs to meet the effect of quick disassembly and maintenance.

[0006] Technical Solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The utility model provides a plunger pump with good safety, comprising a plunger pump body, a turntable is provided at the front end of the plunger pump body, the front end of the turntable is in contact with the piston rod, a large spring is sleeved on the outer side of the piston rod, the end of the piston rod corresponds to the contact head, and the contact head is arranged on the cylinder cover, a cylinder barrel is provided at the front end of the cylinder cover, the cylinder barrel comprises a cylinder base shell and a sealing plate, the cylinder base shell and the sealing plate are connected and fixed by a connecting assembly, the connecting assembly comprises a column head and an outer cylinder, the outer cylinder is fixed to one side of the column head, an inner column is provided on the inner side of the outer cylinder, a small sealing ring is sleeved on the end of the inner column, a locking frame is provided inside the outer cylinder, the top end of the locking frame is sleeved with a large sealing ring, and the outer side of the top end of the inner column is sleeved with a small spring.

[0009] Furthermore, the outer sides of the cylinder base shell and the sealing plate are both provided with docking ring structures, and the connecting assembly is arranged in the docking ring; through the provided connecting assembly, the user can connect and fix the cylinder barrel and the cylinder head with the connecting assembly, and when connecting, the column head in the connecting assembly can drive the outer barrel to move.

[0010] Furthermore, a threaded groove structure is provided on the outside of the outer cylinder, and a ring structure is fixed on the top of the inner column; and a locking ring structure is provided on the outside of the inner column, which can limit the inner column and fix it in contact through the small spring structure therein, and the small sealing ring inside and the large sealing ring structure outside can be fixed in the inner column and the locking frame through the arc groove to achieve the connection effect.

[0011] Furthermore, the large sealing ring and the small sealing ring are both plastic sealing ring structures.

[0012] Furthermore, the middle part of the locking frame is a hollow structure; through the provided piston rod structure, the large spring structure on its outside can be used to assist the retraction and extension of the piston rod, and the contact head structure can be used to contact and connect with the piston rod to transmit power to the outside.

[0013] Furthermore, the front ends of the inner column and the locking frame are both provided with arc grooves, and the small sealing ring and the large sealing ring are both arranged in the arc grooves.

[0014] Beneficial effects

[0015] Compared with the known public technologies, the technical solution provided by this utility model has the following beneficial effects:

[0016] The utility model provides a connecting assembly, and the user can use the connecting assembly to connect and fix the cylinder barrel and the cylinder cover. During the connection, the column head in the connecting assembly can drive the outer cylinder to move, and a locking ring structure is provided on the outside of the inner column to limit the inner column and fix it in contact through the small spring structure therein. The small sealing ring inside and the large sealing ring structure outside can be fixed in the inner column and the locking frame through the arc groove to achieve the connection effect.

[0017] In the present invention, the piston rod structure is provided, and the large spring structure on the outside thereof can be used to assist the retraction and extension of the piston rod, and the contact head structure can be used to contact and connect with the piston rod to transmit power to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a top view of the structure of the utility model;

[0021] Figure 3 This is a structural breakdown diagram of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the connecting assembly in the present utility model;

[0023] Figure 5 This is a schematic structural diagram of the turntable and piston rod in the utility model;

[0024] Figure 6 This is a structural exploded view of the cylinder in the present invention;

[0025] Figure 7 This is a structural breakdown diagram of the connection component in the present utility model.

[0026] The numbers in the figure represent: 1. Piston pump body; 11. Turntable; 12. Piston rod; 13. Large spring; 2. Cylinder; 21. Cylinder seat shell; 22. Sealing plate; 3. Cylinder head; 4. Connecting assembly; 41. Column head; 42. Outer cylinder; 43. Inner column; 44. Small spring; 45. Locking frame; 46. Large sealing ring; 47. Small sealing ring; 5. Contact head. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] Example: A plunger pump with good safety, see the attached Figure 1 -Attached Figure 7 , including a plunger pump body 1, a turntable 11 is provided at the front end of the plunger pump body 1, the front end of the turntable 11 is in contact with the piston rod 12, the outer side of the piston rod 12 is sleeved with a large spring 13, the end of the piston rod 12 corresponds to the contact head 5, and the contact head 5 is provided on the cylinder head 3, the front end of the cylinder head 3 is provided with a cylinder barrel 2, the cylinder barrel 2 includes a cylinder base shell 21 and a sealing plate 22, the cylinder base shell 21 and the sealing plate 22 are connected and fixed by a connecting component 4, the connecting component 4 includes a column head 41 and an outer cylinder 42, the outer cylinder 42 is fixed to one side of the column head 41, the inner side of the outer cylinder 42 is provided with an inner column 43, the end of the inner column 43 is sleeved with a small sealing ring 47, the interior of the outer cylinder 42 is provided with a locking frame 45, the top end of the locking frame 45 is sleeved with a large sealing ring 46, and the top outer side of the inner column 43 is sleeved with a small spring 44;

[0030] The outer sides of the cylinder base shell 21 and the sealing plate 22 are both provided with docking ring structures, and the connecting component 4 is arranged in the docking ring; the outer side of the outer tube 42 is provided with a threaded groove structure, and the top end of the inner column 43 is fixed with a ring structure; through the provided connecting component 4, the user can use the connecting component 4 to connect and fix the cylinder 2 and the cylinder cover 3, and when connected, the column head 41 in the connecting component 4 can drive the outer tube 42 to move, and on the outer side of the inner column 43, a locking ring structure is provided, which can limit the inner column 43 inside, and connect and fix the cylinder and the cylinder cover with the connecting component, and when connected, the column head in the connecting component can drive the outer tube to move, and on the outer side of the inner column; and through the small spring 44 structure therein for contact and fixation, and the internal small sealing ring 47 and the external large sealing ring 46 structure can be fixed in the inner column 43 and the locking frame 45 through the arc groove to achieve the connection effect.

[0031] The large sealing ring 46 and the small sealing ring 47 are both plastic sealing ring structures.

[0032] The middle part of the locking frame 45 is a hollow structure; in the utility model, through the provided piston rod 12 structure, the large spring 13 structure on its outer side can be used to assist the retraction and extension of the piston rod 12, and the contact head 6 structure can be used to contact and connect with the piston rod 12 to transmit power to the outside.

[0033] The front ends of the inner column 43 and the locking frame 45 are both provided with arc grooves, and the small sealing ring 47 and the large sealing ring 46 are both arranged in the arc grooves.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A plunger pump with good safety, characterized in that: The invention comprises a plunger pump body (1), a front end of the plunger pump body (1) is provided with a turntable (11), the front end of the turntable (11) is in contact with a piston rod (12), a large spring (13) is sleeved on the outer side of the piston rod (12), the end of the piston rod (12) corresponds to a contact head (5), and the contact head (5) is provided on a cylinder cover (3), the front end of the cylinder cover (3) is provided with a cylinder barrel (2), the cylinder barrel (2) includes a cylinder base shell (21) and a sealing plate (22), the cylinder base shell (21) and the sealing plate (22) are provided. 2) are connected and fixed by a connecting assembly (4), wherein the connecting assembly (4) includes a column head (41) and an outer cylinder (42), wherein the outer cylinder (42) is fixed to one side of the column head (41), an inner column (43) is provided on the inner side of the outer cylinder (42), and a small sealing ring (47) is provided on the end of the inner column (43), a locking frame (45) is provided inside the outer cylinder (42), a large sealing ring (46) is provided on the top end of the locking frame (45), and a small spring (44) is provided on the outer side of the top end of the inner column (43).

2. A plunger pump with good safety according to claim 1, characterized in that: The outer sides of the cylinder base shell (21) and the sealing plate (22) are both provided with a docking ring structure, and the connecting assembly (4) is arranged in the docking ring.

3. A plunger pump with good safety according to claim 1, characterized in that: A threaded groove structure is provided on the outer side of the outer cylinder (42), and a ring structure is fixed on the top end of the inner column (43).

4. A plunger pump with good safety according to claim 1, characterized in that: The large sealing ring (46) and the small sealing ring (47) are both plastic sealing ring structures.

5. A plunger pump with good safety according to claim 4, characterized in that: The middle portion of the locking frame (45) is a hollow structure.

6. A plunger pump with good safety according to claim 1, characterized in that: The front ends of the inner column (43) and the locking frame (45) are both provided with arc grooves, and the small sealing ring (47) and the large sealing ring (46) are both arranged in the arc grooves.

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