Pump head sealing assembly of valveless plunger pump

Abstract

The utility model discloses a pump head sealing assembly of a valveless plunger pump, and relates to the technical field of valveless plunger pumps. The pump head component comprises a pump head body, an installation shell arranged at the bottom end of the pump head body and an installation groove formed in the installation shell. And the mounting component comprises a power assembly arranged in the mounting shell, a fixing assembly arranged in the mounting shell and a sealing assembly arranged in the mounting shell. The pump head body is connected in an inserted mode to extrude the right-angle rod, the power disc is made to rotate, the L-shaped rod is driven to enable the fixing block to move, the corresponding pipeline is clamped, and therefore the pump head body is fixed, in addition, when the power disc rotates, the sealing block can be driven to move, sealing at the butt joint position is completed, and the sealing effect is good. The problems that an existing pump head body is inconvenient to install and poor in sealing effect are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valveless plunger pumps, in particular to a pump head sealing component of a valveless plunger pump. Background Art

[0002] Valveless plunger pumps are widely used in the medical device industry, chemical industry and other industries, which have high requirements for the precision of equipment and products, and thus high requirements for the precision of valveless plunger pumps to ensure the quality of equipment and products.

[0003] In the existing technology, the installation of the pump head of the valveless plunger pump requires professional tools and relevant professional staff, so it takes a certain amount of time during the installation process, thereby reducing work efficiency. In addition, the existing seal is relatively simple and the effect is not good.

[0004] To this end, we provide a pump head sealing assembly for a valveless plunger pump to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pump head sealing assembly for a valveless plunger pump, which fixes the pump head body by inserting the pump head body into the right-angle rod and squeezing it, thereby rotating the power disc and driving the L rod to move the fixing block to clamp the corresponding pipeline, thereby completing the fixation of the pump head body. In addition, when the power disc rotates, it also drives the sealing block to move to complete the sealing at the interface, thereby solving the problems of the existing pump head body being inconvenient to install and having a poor sealing effect.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a pump head sealing assembly of a valveless plunger pump, comprising a pump head component, including a pump head body, a mounting shell arranged at the bottom end of the pump head body, and a mounting groove opened inside the mounting shell;

[0008] The installation component includes a power component arranged inside the installation shell, a fixing component arranged inside the installation shell, and a sealing component arranged inside the installation shell.

[0009] The present invention is further configured such that the power assembly includes a power disc arranged inside the mounting shell, a first strip groove opened on the power disc, a right-angle rod arranged inside the first strip groove, and a guide rod fixed to the end of the right-angle rod.

[0010] The utility model is further configured such that the fixing assembly includes a second strip groove opened on the power disc, an L-rod arranged inside the second strip groove, a fixing block arranged at the end of the L-rod, and a return spring arranged at the end of the fixing block, and the return spring is fixedly connected to the mounting shell.

[0011] The present invention is further configured such that the sealing assembly includes a connecting rod provided on one side of the L-rod, and a sealing block provided on an end portion of the connecting rod, wherein the connecting rod is fixedly connected to the L-rod.

[0012] The present invention is further configured such that the power disc is rotatably connected to the mounting shell, the fixing block and the sealing block are both arranged inside the mounting groove, and the inclination directions of the first strip groove and the second strip groove are opposite.

[0013] The present invention is further configured to further include a limiting component, which includes a limiting component arranged on the end of the power disc and a receiving component arranged on the outer wall of the mounting shell.

[0014] The present invention is further configured such that the limiting assembly includes a through hole formed on one side of the mounting housing, a limiting rod disposed inside the through hole, and a limiting hole formed on a top end of the limiting rod;

[0015] Wherein, the limiting rod is fixedly connected to the power disc.

[0016] The present invention is further configured such that the receiving assembly includes a accommodating chamber fixed to the top of the mounting shell, a fixing rod arranged inside the accommodating chamber, a receiving block sleeved on the outer wall of the fixing rod, a tension spring arranged at the bottom end of the receiving block, and a pull rod fixed to the top of the fixing rod.

[0017] The utility model has the following beneficial effects:

[0018] 1. When the pump head body is installed, the corresponding pipeline will squeeze the guide rod, causing the power disc to rotate. Under the action of the second strip groove, the fixed block moves, so that the pump head body is clamped on the corresponding pipeline, thereby completing the installation of the pump head body.

[0019] 2. The connecting rod of the utility model is fixedly connected to the L rod, so when the L rod moves, it will drive the connecting rod to move, and indirectly drive the sealing block to move, so that it squeezes the pipe and reduces the gap between the two. In addition, it can also indirectly squeeze the pipe against the installation groove, making it close to the installation groove, thereby improving the sealing effect.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of a pump head sealing assembly of a valveless plunger pump.

[0023] Figure 2 The figure is a schematic diagram of the overall structure of the mounting parts for the pump head sealing assembly of a valveless plunger pump.

[0024] Figure 3 Schematic diagram of the cross-sectional structure of the installation components.

[0025] Figure 4 Schematic diagram of the internal structure of the installation components.

[0026] Figure 5 The figure is a schematic diagram of the overall structure of a limiting component for a pump head sealing assembly of a valveless plunger pump.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 100, pump head component; 101, pump head body; 102, mounting shell; 103, mounting groove; 200, mounting component; 201, power assembly; 201a, power disc; 201b, first strip groove; 201c, right-angle rod; 201d, guide rod; 202, fixing assembly; 202a, second strip groove; 202b, L rod; 202c, fixing block; 202d, return spring; 203, sealing assembly; 203a, connecting rod; 203b, sealing block; 300, limiting component; 301, limiting assembly; 301a, through hole; 301b, limiting rod; 301c, limiting hole; 302, receiving assembly; 302a, accommodating chamber; 302b, fixing rod; 302c, receiving block; 302d, tension spring; 302e, pull rod. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0030] See also Figure 1-4 The present invention is a pump head sealing assembly for a valveless plunger pump, comprising a pump head component 100, including a pump head body 101, a mounting shell 102 disposed at the bottom end of the pump head body 101, and a mounting groove 103 provided inside the mounting shell 102;

[0031] The mounting component 200 includes a power assembly 201 disposed inside the mounting shell 102, a fixing assembly 202 disposed inside the mounting shell 102, and a sealing assembly 203 disposed inside the mounting shell 102. The power assembly 201 includes a power disc 201a disposed inside the mounting shell 102, a first strip groove 201b opened on the power disc 201a, a right-angle rod 201c disposed inside the first strip groove 201b, and a guide rod 201d fixed to the end of the right-angle rod 201c.

[0032] Specifically, the fixing assembly 202 includes a second strip groove 202a opened on the power disc 201a, an L-rod 202b arranged inside the second strip groove 202a, a fixing block 202c arranged at the end of the L-rod 202b, and a return spring 202d arranged at the end of the fixing block 202c, and the return spring 202d is fixedly connected to the mounting housing 102, characterized in that the sealing assembly 203 includes a connecting rod 203a arranged on one side of the L-rod 202b, and a sealing block 203b arranged at the end of the connecting rod 203a, wherein the connecting rod 203a is fixedly connected to the L-rod 202b.

[0033] Furthermore, the power disc 201a is rotatably connected to the mounting housing 102, the fixing block 202c and the sealing block 203b are both disposed inside the mounting groove 103, and the first strip groove 201b and the second strip groove 202a have opposite inclination directions.

[0034] The operating process of this embodiment is as follows: first, the pump head body 101 is accurately docked on the corresponding pipe. During this process, the guide rod 201d will be squeezed and expanded outward. During the movement of the power disc 201a, the guide rod 201d on the power disc 201a will drive the power disc 201a to rotate. A second strip groove 202a is also provided on the surface of the power disc 201a in the opposite direction of the inclination of the power disc 201a. Under the action of the second strip groove 202a, the L rod 202b will be driven to move, and the pump head body 101 will be fixed to the corresponding pipe, thereby completing the installation of the pump head body 101. In addition, a connecting rod 203a is fixed on one side of the L rod 202b, and the connecting rod 203a is fixedly connected to the sealing block 203b, so that the L rod 202b moves by driving the connecting rod 203a to move the sealing block 203b. At this time, the sealing block 203b is squeezed, thereby improving the sealing performance of the connection at the pump head body 101. Example 2

[0035] See also Figure 1 and Figure 5 On the basis of Example 1, it further includes a limiting component 300, which includes a limiting component 301 arranged at the end of the power disc 201a, and a receiving component 302 arranged on the outer wall of the installation shell 102.

[0036] Specifically, it is characterized in that the limiting assembly 301 includes a through hole 301a opened on one side of the mounting shell 102, a limiting rod 301b arranged inside the through hole 301a, and a limiting hole 301c opened at the top of the limiting rod 301b; wherein, the limiting rod 301b is fixedly connected to the power disc 201a.

[0037] Furthermore, it is characterized in that the receiving assembly 302 includes a accommodating chamber 302a fixed to the top of the mounting shell 102, a fixing rod 302b arranged inside the accommodating chamber 302a, a receiving block 302c sleeved on the outer wall of the fixing rod 302b, a tension spring 302d arranged at the bottom end of the receiving block 302c, and a pull rod 302e fixed to the top of the fixing rod 302b.

[0038] The operation process of this embodiment is as follows: when the power disc 201a rotates, it will drive the through hole 301a to rotate so that the through hole 301a enters the interior of the accommodating chamber 302a and pushes up the fixing rod 302b, and gradually the limiting hole 301c will move to the bottom of the receiving block 302c. Since the tension spring 302d will be deformed when the fixing rod 302b is pushed up, when the limiting hole 301c moves to the position corresponding to the receiving block 302c, the receiving block 302c will be pulled back under the action of the elastic force of the tension spring 302d, so that the receiving block 302c is stuck in the limiting hole 301c, thereby completing the limiting rod The fixation of 301b indirectly completes the fixation of the power disc 201a, thereby completing the installation of the pump head body 101. In addition, when the pump head body 101 needs to be mechanically disassembled, the pull rod 302e is pulled to disengage the receiving block 302c from the limiting hole 301c. During the rotation of the power disc 201a, the guide rod 201d connected to one side of the right-angle rod 201c is deformed. When the receiving block 302c disengages from the limiting hole 301c, the right-angle rod 201c will be pulled back to its original position under the action of the guide rod 201d, thereby releasing the fixation of the pump head body 101 and indirectly completing the disassembly.

[0039] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0040] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pump head sealing assembly for a valveless plunger pump, characterized in that: include, A pump head component (100) comprises a pump head body (101), a mounting shell (102) disposed at the bottom end of the pump head body (101), and a mounting groove (103) opened inside the mounting shell (102); The mounting component (200) comprises a power component (201) disposed inside the mounting housing (102), a fixing component (202) disposed inside the mounting housing (102), and a sealing component (203) disposed inside the mounting housing (102).

2. A pump head sealing assembly for a valveless plunger pump according to claim 1, characterized in that: The power assembly (201) comprises a power disc (201a) arranged inside the mounting housing (102), a first strip groove (201b) provided on the power disc (201a), a right-angle rod (201c) arranged inside the first strip groove (201b), and a guide rod (201d) fixed to the end of the right-angle rod (201c).

3. The pump head sealing assembly of a valveless plunger pump according to claim 2, characterized in that: The fixing assembly (202) comprises a second strip groove (202a) provided on the power disc (201a), an L-shaped rod (202b) arranged inside the second strip groove (202a), a fixing block (202c) arranged at the end of the L-shaped rod (202b), and a return spring (202d) arranged at the end of the fixing block (202c), wherein the return spring (202d) is fixedly connected to the mounting housing (102).

4. A pump head sealing assembly for a valveless plunger pump according to claim 3, characterized in that: The sealing assembly (203) comprises a connecting rod (203a) arranged on one side of the L-rod (202b), and a sealing block (203b) arranged at the end of the connecting rod (203a), wherein the connecting rod (203a) is fixedly connected to the L-rod (202b).

5. The pump head sealing assembly of a valveless plunger pump according to claim 4, characterized in that: The power disc (201a) is rotatably connected to the mounting housing (102); the fixing block (202c) and the sealing block (203b) are both arranged inside the mounting groove (103); and the first strip groove (201b) and the second strip groove (202a) have opposite inclination directions.

6. The pump head sealing assembly of a valveless plunger pump according to claim 2, characterized in that: It also includes a limiting component (300), which includes a limiting assembly (301) arranged at the end of the power disc (201a), and a receiving assembly (302) arranged on the outer wall of the installation shell (102).

7. A pump head sealing assembly for a valveless plunger pump according to claim 6, characterized in that: The limiting assembly (301) comprises a through hole (301a) provided on one side of the mounting housing (102), a limiting rod (301b) arranged inside the through hole (301a), and a limiting hole (301c) provided at the top end of the limiting rod (301b); Wherein, the limiting rod (301b) is fixedly connected to the power disc (201a).

8. The pump head sealing assembly of a valveless plunger pump according to claim 7, characterized in that: The receiving assembly (302) includes a accommodating chamber (302a) fixed to the top of the mounting shell (102), a fixing rod (302b) arranged inside the accommodating chamber (302a), a receiving block (302c) sleeved on the outer wall of the fixing rod (302b), a tension spring (302d) arranged at the bottom end of the receiving block (302c), and a pulling rod (302e) fixed to the top of the fixing rod (302b).

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