CN208734529U - A kind of piston of plunger pump - Google Patents

Abstract

The utility model discloses a kind of pistons of plunger pump, its structure includes connecing hole, skirt section, annular groove, valve evacuation hole, inner cavity, pin hole, jump-ring slot, contraction window, top, head, the hole that connects is fixedly connected in the middle part of skirt surface, the skirt section top exterior walls are equipped with both annular grooves as integration fastening, valve evacuation hole is located in the middle part of top surface, a kind of piston of plunger pump of the utility model, equipped with connecing hole, first by impenetrating mouth and external device through connection, it receives extraneous power and Transmission Room and carries out transmission work, support ring upper and lower side is respectively equipped with locking member, the joint-clamping in the middle part of recreation room is fixed using protrusion part in the middle part of locking member rotational fastener slot, so that extraneous carrying out transmission work, equipment will not be because of Caton caused by inside fastening performance difference and Transmission Room.

Description

A kind of piston of plunger pump

Technical field

The utility model is a kind of piston of plunger pump, belongs to plunger pump apparatus field.

Background technique

Plunger pump is an important device of hydraulic system, it is moved back and forth in cylinder body by plunger, makes seal operation The volume of cavity changes to realize oil suction, pressure oil.Plunger pump high, compact-sized, high-efficient and flow with rated pressure The advantages that easy to adjust, is widely used in the occasion that high pressure, big flow and flow need to adjust, such as hydraulic press, engineering machine In tool and ship, piston is a part in plunger pump working part.

Prior art discloses application No. is the pistons of the plunger pump of CN104948447A, it is characterised in that piston face Equipped with linear burr, the length of linear burr is 1mm-3mm, is divided into 0.5mm-1.5mm between linear burr.The present invention is by setting Linear burr is set, incrustation and the removing of piston under pressure are realized, when incrustation occurs in piston face, due to linear burr Presence, destroy the globality of incrustation, when incrustation reaches certain thickness, under the effect of the pressure, incrustation is in linear burr Place ruptures, and is discharged with medium, the beneficial effect of realization piston face self-cleaning, but disadvantage is that equipment can not be with Drive rod is fastenedly connected, and is carrying out transmission work, is easy because fastening performance difference and transmission chamber interior walls generate Caton.

Summary of the invention

In view of the deficienciess of the prior art, the utility model aim is to provide a kind of piston of plunger pump, to solve to set It is standby to be fastenedly connected with drive rod, transmission work is being carried out, is being easy because fastening performance difference and transmission chamber interior walls generate Caton The problem of.

To achieve the goals above, the utility model is achieved through the following technical solutions: a kind of work of plunger pump Plug, structure includes connecing hole, skirt section, annular groove, valve evacuation hole, inner cavity, pin hole, jump-ring slot, contraction window, top, head, described It connects hole to be fixedly connected in the middle part of skirt surface, the skirt section top exterior walls are equipped with both annular grooves as integration fastening, and the valve is kept away Hole is allowed to be located in the middle part of top surface, the inner cavity and skirt section integral structure, the pin hole right side prolong side and is equipped with jump-ring slot, described Pin hole and jump-ring slot are respectively provided at inner cavity side tail end, and the contraction window is fixedly connected with skirt section outer wall and prolongs side, and the head is located at Top two sides；The hole that connects is made of locking member, impenetrating mouth, binding groove, support ring, recreation room, connection screw thread, the locking member The connection screw thread that bottom outer wall and binding groove inner wall are equipped with is using mating connection is screwed, and the two screw thread intermeshes, the fastening Slot outer wall is flexibly connected in the middle part of support ring upper and lower ends using interference fit type, and junction fits closely, the impenetrating mouth It is located at left and right sides of support ring, and occupies 4/5ths of two middle side part area of support ring, there are two the impenetrating mouth is set altogether, two Person's equivalent is in same level in parallel, and the recreation room is located at both support ring inner walls and is integrated.

Further, described to connect hole connection skirt section outer wall two sides.

Further, annular groove is equipped with outer wall at the top of the skirt section.

Further, the head upper and lower side is respectively equipped with top and annular groove.

Further, the pin hole and jump-ring slot are in same level.

Further, the hole surface that connects is a length of 3cm of circular radius.

Beneficial effect

A kind of piston of plunger pump of the utility model runs through connection by impenetrating mouth and external device first equipped with hole is connect, It receives extraneous power and Transmission Room and carries out transmission work, support ring upper and lower side is respectively equipped with locking member, is rotated using locking member The joint-clamping in the middle part of recreation room is fixed in protrusion part in the middle part of binding groove, so that extraneous carrying out transmission work, equipment It will not be because of Caton caused by inside fastening performance difference and Transmission Room.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is a kind of structural schematic diagram of the piston of plunger pump of the utility model；

Fig. 2 is a kind of schematic diagram of internal structure of the piston of plunger pump of the utility model；

Fig. 3 connects hole the schematic diagram of the section structure for the utility model.

In figure: connecing hole -1, locking member -101, impenetrating mouth -102, binding groove -103, support ring -104, recreation room -105, connect Connect screw thread -106, skirt section -2, annular groove -3, valve evacuation hole -4, inner cavity -5, pin hole -6, jump-ring slot -7, contraction window -8, top -9, Head -10.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

Please refer to Fig. 1-Fig. 3, the utility model provides a kind of technical solution: a kind of piston of plunger pump, structure include Hole 1, skirt section 2, annular groove 3, valve evacuation hole 4, inner cavity 5, pin hole 6, jump-ring slot 7, contraction window 8, top 9, head 10 are connect, it is described to connect Hole 1 is fixedly connected with 2 surface middle part of skirt section, and 2 top exterior walls of skirt section are equipped with both annular grooves 3 as integration fastening, the valve Evacuation hole 4 is located at 9 surface middle parts of top, the inner cavity 5 and 2 integral structure of skirt section, prolongs side equipped with circlip on the right side of the pin hole 6 Slot 7, the pin hole 6 are respectively provided at 5 side tail end of inner cavity with jump-ring slot 7, and the contraction window 8 is fixedly connected with 2 outer wall of skirt section and prolongs side, The head 10 is located at 9 two sides of top；The hole 1 that connects is by locking member 101, impenetrating mouth 102, binding groove 103, support ring 104, work Dynamic room 105, connection screw thread 106 form, the connection screw thread 106 that 101 bottom outer wall of locking member is equipped with 103 inner wall of binding groove It is cooperatively connected using screwing, the two screw thread intermeshes, and adopts in the middle part of 103 outer wall of binding groove and 104 upper and lower ends of support ring It is flexibly connected with interference fit type, junction fits closely, and the impenetrating mouth 102 is located at 104 left and right sides of support ring, and accounts for With 4/5ths of 104 liang of middle side part areas of support ring, there are two the impenetrating mouth 102 is set altogether, the two equivalent is in same in parallel On one horizontal plane, the recreation room 105 is located at both 104 inner walls of support ring and is integrated, and the hole 1 that connects connects skirt section 2 Outer wall two sides, 2 top of skirt section are equipped with annular groove 3 with outer wall, and 10 upper and lower side of head is respectively equipped with top 9 and annular groove 3, institute It states pin hole 6 and jump-ring slot 7 is in same level, 1 surface of hole that connects is a length of 3cm of circular radius.

A kind of widely used dismountable retaining element of connection screw thread 106 described in this patent has structure simply, even Connect reliable, the advantages that being convenient to mount and dismount

In progress in use, being supported respectively to equipment upper and lower side by skirt section 2 with top 9 first, hole 1 and the external world are connect Driving head is fastenedly connected, and prevents from connecing hole 1 by the interior impenetrating mouth 102 and external device set with Caton inside Transmission Room in transmission Through connection, receiving extraneous power and Transmission Room and carry out transmission work, 104 upper and lower side of support ring is respectively equipped with locking member 101, The joint-clamping through 105 middle part of recreation room is fixed using protrusion part in the middle part of 101 rotational fastener slot 103 of locking member, so that The external world is carrying out transmission work, and equipment will not be because of Caton caused by inside fastening performance difference and Transmission Room.

The utility model solves the problems, such as it is that equipment can not be fastenedly connected with drive rod, is carrying out transmission work, be easy because Caton is generated for fastening performance difference and transmission chamber interior walls, the utility model is combined with each other by above-mentioned component, first equipped with connecing hole Impenetrating mouth and external device are first passed through through connection, extraneous power and Transmission Room is received and carries out transmission work, above and below support ring End is respectively equipped with locking member, is fastened using protrusion part in the middle part of locking member rotational fastener slot to the connector clamp in the middle part of recreation room Fixed, so that extraneous carrying out transmission work, equipment will not be because of Caton caused by inside fastening performance difference and Transmission Room, institute specific as follows It states:

The connection screw thread 106 that 101 bottom outer wall of locking member and 103 inner wall of binding groove are equipped with is connected using cooperation is screwed It connects, the two screw thread intermeshes, and interference fit type is used in the middle part of 103 outer wall of binding groove and 104 upper and lower ends of support ring It is flexibly connected, junction fits closely, and the impenetrating mouth 102 is located at 104 left and right sides of support ring, and occupies 104 liang of support ring 4/5ths of middle side part area, there are two the impenetrating mouth 102 is set altogether, the two equivalent is in same level in parallel, institute It states recreation room 105 and is located at both 104 inner walls of support ring and be integrated.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.It should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of piston of plunger pump, structure includes connecing hole (1), skirt section (2), annular groove (3), valve evacuation hole (4), inner cavity (5), pin hole (6), jump-ring slot (7), contraction window (8), top (9), head (10), the hole (1) that connects are fixedly connected with skirt section (2) table Middle face, it is characterised in that:

Skirt section (2) top exterior walls are equipped with both annular groove (3) as integration fastening, and the valve evacuation hole (4) is located at top (9) surface middle part, the inner cavity (5) and skirt section (2) integral structure, pin hole (6) right side prolong side and are equipped with jump-ring slot (7), The pin hole (6) and jump-ring slot (7) are respectively provided at inner cavity (5) side tail end, and the contraction window (8) is fixedly connected with skirt section (2) outside Wall prolongs side, and the head (10) is located at top (9) two sides；

It is described connect hole (1) by locking member (101), impenetrating mouth (102), binding groove (103), support ring (104), recreation room (105), The connection screw thread (106) that connection screw thread (106) composition, locking member (101) bottom outer wall and binding groove (103) inner wall are equipped with It is cooperatively connected using screwing, the two screw thread intermeshes, in binding groove (103) outer wall and support ring (104) upper and lower ends Portion is flexibly connected using interference fit type, and junction fits closely, and the impenetrating mouth (102) is located at support ring (104) left and right Two sides, and 4/5ths of (104) two middle side part area of support ring, there are two the impenetrating mouth (102) sets altogether is occupied, the two etc. In parallel in same level, the recreation room (105) is located at both support ring (104) inner walls and is integrated amount.

2. a kind of piston of plunger pump according to claim 1, it is characterised in that: described to connect hole (1) connection skirt section (2) outside Wall two sides.

3. a kind of piston of plunger pump according to claim 1, it is characterised in that: set at the top of the skirt section (2) with outer wall There are annular groove (3).

4. a kind of piston of plunger pump according to claim 1, it is characterised in that: head (10) upper and lower side is set respectively There are top (9) and annular groove (3).

5. a kind of piston of plunger pump according to claim 1, it is characterised in that: at the pin hole (6) and jump-ring slot (7) In in same level.

6. a kind of piston of plunger pump according to claim 1, it is characterised in that: hole (1) surface that connects is round half The a length of 3cm of diameter.