CN216922392U - Anti-loosening device for flow regulating mechanism of metering pump - Google Patents
Anti-loosening device for flow regulating mechanism of metering pump Download PDFInfo
- Publication number
- CN216922392U CN216922392U CN202220426832.XU CN202220426832U CN216922392U CN 216922392 U CN216922392 U CN 216922392U CN 202220426832 U CN202220426832 U CN 202220426832U CN 216922392 U CN216922392 U CN 216922392U
- Authority
- CN
- China
- Prior art keywords
- bolt
- adjusting
- metering pump
- regulating mechanism
- loosening device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to the technical field of metering pump structures, and discloses an anti-loosening device for a metering pump flow regulating mechanism. Through corresponding the clasping structure, the adjusting rod, the adjusting knob and the adjusting nut are integrally clasped, so that the phenomenon of axial movement or/and circumferential rotation of the adjusting rod is effectively avoided or alleviated, the operation stability and reliability of the pump are greatly improved, the service life of the pump is prolonged, and the device is simple and reliable in structure and convenient to implement.
Description
Technical Field
The utility model belongs to the technical field of metering pump structures, and particularly relates to a locking device of a metering pump flow regulating mechanism.
Background
During the operation of the metering pump, the pump body vibrates to loosen the locking bolt for fastening the adjusting nut on the adjusting screw rod, so that relative rotation or/and displacement between the adjusting rod and the adjusting nut are caused, the flow of the pump is unstable, particularly in some fine metering occasions, the accuracy of the metering pump can be greatly influenced by the looseness of the adjusting nut, the sealing failure of the pump is caused in serious cases, the pump operates without flow, and fluid circulates around the piston rod, so that the production is influenced. Aiming at the situation, a worker needs to fasten the locking bolt at irregular time to ensure that the stroke of the adjusting rod cannot change, so that the pump flow is stable, and the working strength is greatly improved. Particularly, in the oil and gas exploitation industry, the metering pump is widely installed in an unattended well station, the small bolt is difficult to fasten at variable time to stabilize the flow of the metering pump, and the production of natural gas is easily affected.
Therefore, the applicant applied for a patent with the patent number "CN 201820856225.0" named as "stabilizing device for flow regulating mechanism of metering pump" in the early stage, which mainly solves the problem of rotation of the regulating rod, but finds that the regulating rod is easily subjected to axial reciprocating movement under the influence of the plunger under the long-term operating condition in the later stage practical production application process, and the influence is large, which even causes inaccurate metering and shortens the overall service life.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a locking device for a flow regulating mechanism of a metering pump, which is used for avoiding or relieving the problem of axial movement of a regulating rod in the use process of a plunger pump and improving the operation stability and reliability of the pump.
The technical scheme is as follows:
the utility model provides a measuring pump flow adjustment mechanism locking device, flow adjustment mechanism is including adjusting pole and adjust knob, and its key lies in: the anti-loosening device comprises a supporting piece, and the supporting piece is at least provided with a tightly-holding structure A and a tightly-holding structure B which are used for tightly holding the adjusting rod and the adjusting knob respectively.
By adopting the scheme, the adjusting rod and the adjusting knob are respectively held tightly by the holding structure A and the holding structure B during use, and the adjusting knob can only rotate relative to the pump body and cannot move axially along the adjusting rod, so that after holding tightly, the axial float condition of the adjusting rod can be prevented or alleviated by means of holding friction force, and the operation stability of the pump is improved.
Preferably, the method comprises the following steps: embrace structure A and include two at least bolt A along adjusting pole circumference and distributing, bolt A embraces structure B and includes two at least bolt B along adjust knob circumference and distribute, bolt A and bolt B all with support piece screw-thread fit, wherein bolt A's the inner offsets with adjusting the pole, and bolt B's the inner offsets with adjust the knob. The bolt is adopted to support the tight structure, so that the processing and the manufacturing are convenient, the tightness operation is convenient, and the practicability of the device is improved.
Preferably, the method comprises the following steps: the flow regulation mechanism still includes adjusting nut, still be equipped with on the support piece and hold structure C tightly, hold structure C tightly and be used for holding tightly adjusting nut, adjusting nut includes at least two along adjusting nut circumference evenly distributed's bolt C, bolt C inner offsets with adjusting nut. By adopting the scheme, the clamping structure C is clamped with the adjusting nut, so that the adjusting knob can be effectively prevented from rotating, and the adjusting rod can be prevented from rotating while being prevented from axially shifting.
Preferably, the method comprises the following steps: the inner ends of the bolt A, the bolt B and the bolt C are provided with arc-shaped clamping heads which are arranged in a rotatable mode, and the inner sides of the arc-shaped clamping heads are provided with convex edges. By adopting the scheme, the clasping force of the corresponding clasping structure can be increased, and the clasping reliability is improved.
Preferably, the method comprises the following steps: the arc-shaped clamping head on the bolt A is provided with a stopping part, and when the arc-shaped clamping head abuts against the circumferential outer wall of the adjusting rod, the stopping part abuts against the tail end of the adjusting rod. By adopting the scheme, the arc-shaped clamping head on the bolt A can be clamped tightly in the circumferential direction to achieve the axial stopping effect, and can directly block in the axial direction through the stopping part, so that the stopping effect is further improved.
Preferably, the method comprises the following steps: when the stopping part is abutted against the tail end of the adjusting rod, the side surface of the arc-shaped clamping head on the bolt C is abutted against the front end surface of the adjusting knob. The arc clamping heads on the clasping structure A and the clasping structure C are respectively abutted against the tail end of the adjusting rod and the front end of the adjusting knob, and the axial position of the adjusting knob is fixed, so that the axial space of the adjusting rod can be further limited, and the loosening effect of the device is improved.
Preferably, the method comprises the following steps: the tail end of the adjusting knob is provided with a knurled section, and the bolt B is arranged corresponding to the knurled section. By adopting the scheme, the friction force between the bolt B and the adjusting knob is increased, and the cohesion reliability is ensured.
Preferably, the method comprises the following steps: and spring washers are arranged at the thread matching parts of the bolt A, the bolt B and the bolt C and the support piece. By adopting the scheme, the connection stability between each bolt and the supporting piece is ensured, and looseness or falling off caused by long-time vibration is prevented.
Preferably, the method comprises the following steps: the support piece is cylindrical, and the number of the bolts A, the bolts B and the bolts C is three respectively. By adopting the scheme, the bolts of each group are respectively distributed in an equilateral triangle, and more stable cohesion force can be provided.
Preferably, the method comprises the following steps: the front end of the supporting piece is provided with at least one observation port which is arranged along the axial direction of the supporting piece. By adopting the scheme, inspection personnel can observe the relative positions of the scales on the adjusting knob and the adjusting nut through the observation port.
Compared with the prior art, the utility model has the beneficial effects that:
by adopting the anti-loosening device for the flow regulating mechanism of the metering pump, the regulating rod, the regulating knob and the regulating nut are integrally clasped through the corresponding clasping structure, so that the phenomenon of axial movement or/and circumferential rotation of the regulating rod is effectively avoided or relieved, the running stability and reliability of the pump are greatly improved, the service life of the pump is prolonged, and the anti-loosening device is simple and reliable in structure and convenient to implement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the present invention;
FIG. 3 is a schematic view of a support structure;
FIG. 4 is a schematic view of an arc-shaped engaging head structure;
FIG. 5 is a schematic structural view of another embodiment of an arc-shaped engaging head in a clasping structure A;
fig. 6 is a side view of fig. 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 6, the locking device for a flow regulating mechanism of a metering pump is shown, wherein the flow regulating mechanism mainly comprises a regulating rod 1 extending into the pump body and connected with a plunger, and a regulating nut 4 arranged corresponding to the regulating rod 1, the regulating nut 4 is fixedly connected with the pump body and in threaded fit with the regulating rod 1, a regulating knob 2 is sleeved outside the regulating nut 4, the regulating knob 2 is connected with the regulating nut 4 in a rotatable manner, and the axial position of the regulating knob 2 is relatively fixed with the regulating nut 4.
As shown in the figure, one end of the adjusting nut 4 far away from the pump body 1 is provided with a locking ring 5, the locking ring 5 is movably sleeved on the adjusting rod 1, the locking ring 5 is provided with an adjusting nut locking screw 50, the adjusting rod 1 is provided with a groove 10 along the length direction thereof, one end of the adjusting nut 4 close to the pump body is fixedly connected with the pump body, after the stroke of the adjusting rod 1 is adjusted in place, the locking ring 5 is abutted against the end surface of the adjusting nut 4, and the adjusting nut locking screw 50 is screwed into the groove 10 in a right way, so that the positions of the adjusting nut 4 and the adjusting rod 1 can be relatively fixed, and when the adjusting nut locking screw 50 is loosened, the adjusting nut locking screw and the adjusting nut locking screw can rotate relatively under the working vibration state, and the flow rate of the metering pump is changed accordingly.
2 covers of adjust knob are established on adjusting nut 4, the block structure that has mutual matching between the two, with fixed two axial position, and adjust knob 2's tail end is passed through knob fastening screw 6 and is linked to be integrative with adjusting pole 1, when adjust knob 2 rotates like this, then can drive and adjust pole 1 and rotate together, realize flow control, under the general condition, the tail end of adjusting pole 1 can set up C shape jump ring 7, limit to adjust knob 2's axial position, adjust 1 tail end part of pole and can expose to adjust knob 2's rear.
In a working state, after any one of the adjusting nut locking screw 50 and the knob fastening screw 6 is loosened, the adjusting rod 1 may be axially moved or even may be rotated at the same time, so that the flow rate is deviated, and the stability and the reliability are gradually reduced.
The utility model provides a locking device mainly includes support piece 3, is equipped with at least on the support piece 3 to be used for holding tightly respectively the structure A30 of holding tightly of adjusting pole 1 and adjust knob 2 and holds tightly structure B31, during the concrete implementation, support piece 3 is preferably cylindric, and its internal diameter is greater than adjust knob 2's external diameter, holds tightly structure A30 and includes at least two bolts A300 along adjusting 1 circumference evenly distributed of pole, bolt A300, holds tightly structure B31 and includes at least two bolts B310 along 2 circumference evenly distributed of adjust knob, and bolt A300 and bolt B310 all with support piece 3 screw-thread fit, wherein the inner of bolt A300 offsets with adjusting pole 1, and the inner of bolt B310 offsets with adjust knob 2, mainly through bolt A300 and the frictional force of adjusting between the pole 1 to and the frictional force between bolt B310 and the adjust knob 2, block the axial float of adjusting pole 1.
On the basis, in order to further improve the retaining effect of the adjusting rod 1, a clasping structure C32 is further arranged on the support 3, the clasping structure C32 is used for clasping the adjusting nut 4, the adjusting nut 4 comprises at least two bolts C320 which are uniformly distributed along the circumferential direction of the adjusting nut 4, the inner end of each bolt C320 abuts against the adjusting nut 4, and the adjusting nut 4 is completely fixed with the pump body, so that the position stability of the support 3 can be further ensured.
In order to improve the reliability of each holding structure and increase the friction force generated by holding, the inner ends of the bolt a300, the bolt B310 and the bolt C320 are respectively provided with an arc-shaped clamping head 33 which is rotatably arranged, the inner side of the arc-shaped clamping head 33 is provided with a convex edge 330, the arc-shaped clamping head 33 is adapted to the circumferential surface of the corresponding holding part (the adjusting rod 1, the adjusting knob 2 and the adjusting nut 4), as shown in the figure, the arc-shaped clamping head 33 is substantially in an arc-shaped plate structure, the arc-shaped clamping head 33 and the corresponding bolt are rotatably connected, for example, a ball hinge connection or a rotary connector is adopted for connection, so that when the arc-shaped clamping head 33 is attached to the corresponding holding part, the arc-shaped clamping head 33 cannot rotate along with the corresponding bolt, the corresponding part is held tightly under the action of the bolt, and the convex edge 330 can further increase the contact friction force.
As shown in fig. 5 and 6, the arc-shaped engaging head 33 on the bolt a300 has a stopping portion 331, when the arc-shaped engaging head 33 abuts against the circumferential outer wall of the adjusting rod 1, the stopping portion 331 abuts against the tail end of the adjusting rod 1, that is, an axial blocking force is directly applied to the tail end of the adjusting rod 1, further, an axial distance between the bolt a300 and the bolt C320 is defined, so that when the stopping portion 331 abuts against the tail end of the adjusting rod 1, the rear side surface (the side away from the pump body) of the arc-shaped engaging head 33 on the bolt C320 abuts against the front end surface of the adjusting knob 2, at this time, the arc-shaped engaging head 33 on the bolt C320 can not only provide a corresponding cohesive force, but also, because of abutting against the front end of the adjusting knob 2, the arc-shaped engaging head 33 is axially defined by the adjusting knob 2, so that the supporting member 3 can provide a greater retaining force.
As shown in fig. 1 and fig. 2, the tail end of the adjusting knob 2 has a knurled section, the bolt B310 is disposed corresponding to the knurled section, and in addition, the screw-thread matching portions of the bolt a300, the bolt B310, the bolt C320 and the support 3 are all provided with a spring washer 34, so as to improve the reliability of each screw-thread connection and alleviate the influence caused by vibration, and as shown in the figure, the support 3 is provided with a sunken platform disposed corresponding to the bolt for mounting the spring washer 34.
For the stability and the reliability of further improvement this device, bolt A300, bolt B310 and bolt C320 respectively have three in this application to make each structure of holding tightly can provide more stable cohesion dynamics, and support piece 3 is guaranteeing under the intensity condition, also can design hollow out construction, or the tubular structure of other cross-sections.
In general, the circumferential surface of the front end of the adjusting knob 2 and the adjusting nut 4 have scale indications, so to avoid the situation that the device is shielded and inconvenient for the operator to detect or record, the front end of the supporting member 3 of this embodiment has at least one viewing port 35 formed along the axial direction thereof.
Referring to fig. 1 to 6, the locking device for a flow rate adjusting mechanism of a metering pump is characterized in that a clasping structure a30, a clasping structure B31 and a clasping structure C32 are installed on a support 3, then the assembled support 3 is sleeved on an adjusting knob 2, and the axial position of the adjusting knob is adjusted, firstly, the clasping structure a clasps an adjusting rod 1, a stopping portion 331 on an arc-shaped clamping head 33 in the clasping structure a30 abuts against the tail end of the adjusting rod 1, the front side of the arc-shaped clamping head 33 is attached to a C-shaped clamping spring 7, the structure of the arc-shaped clamping head 33 is beneficial to ensuring that the support 3 coincides with the axis of the adjusting rod 1, and then, a mindong bolt C320 clasps an adjusting nut 4 on the arc-shaped clamping structure C32, and finally, the adjusting knob 2 is clasped by the clasping structure B31.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a measuring pump flow control mechanism locking device, flow control mechanism is including adjusting pole (1) and adjust knob (2), its characterized in that: the anti-loosening device comprises a supporting piece (3), wherein the supporting piece (3) is at least provided with a clasping structure A (30) and a clasping structure B (31) which are used for clasping the adjusting rod (1) and the adjusting knob (2) respectively.
2. The anti-loosening device for the metering pump flow regulating mechanism according to claim 1, wherein: embrace structure A (30) tightly and include at least two along adjusting bolt A (300) of pole (1) circumference evenly distributed, bolt A (300), embrace structure B (31) tightly and include at least two along adjust knob (2) circumference evenly distributed's bolt B (310), bolt A (300) and bolt B (310) all with support piece (3) screw-thread fit, wherein the inner of bolt A (300) offsets with adjusting pole (1), and the inner and adjust knob (2) of bolt B (310) offset.
3. The anti-loosening device for the metering pump flow regulating mechanism according to claim 2, wherein: flow adjustment mechanism still includes adjusting nut (4), still be equipped with on support piece (3) and hold structure C (32) tightly, hold structure C (32) tightly and be used for holding tightly adjusting nut (4), adjusting nut (4) include at least two along adjusting nut (4) circumference evenly distributed's bolt C (320), bolt C (320) inner offsets with adjusting nut (4).
4. The anti-loosening device for the metering pump flow regulating mechanism according to claim 3, wherein: the inner ends of the bolt A (300), the bolt B (310) and the bolt C (320) are respectively provided with an arc-shaped clamping head (33) which is arranged in a rotatable mode, and the inner side of the arc-shaped clamping head (33) is provided with a convex rib (330).
5. The anti-loosening device for the metering pump flow regulating mechanism according to claim 4, wherein: the arc-shaped clamping head (33) on the bolt A (300) is provided with a stopping part (331), and when the arc-shaped clamping head (33) abuts against the circumferential outer wall of the adjusting rod (1), the stopping part (331) abuts against the tail end of the adjusting rod (1).
6. The anti-loosening device for the metering pump flow regulating mechanism according to claim 5, wherein: when the stopping part (331) is abutted against the tail end of the adjusting rod (1), the side surface of the arc-shaped clamping head (33) on the bolt C (320) is abutted against the front end surface of the adjusting knob (2).
7. The anti-loosening device for the metering pump flow regulating mechanism according to any one of claims 2 to 6, wherein: the tail end of the adjusting knob (2) is provided with a knurled section, and the bolt B (310) is arranged corresponding to the knurled section.
8. The anti-loosening device for the metering pump flow regulating mechanism according to any one of claims 3 to 6, wherein: and spring washers (34) are arranged at the thread matching parts of the bolt A (300), the bolt B (310) and the bolt C (320) and the support (3).
9. The check device of the metering pump flow rate adjusting mechanism of any one of claims 3 to 6, wherein: the support piece (3) is cylindrical, and three bolts A (300), three bolts B (310) and three bolts C (320) are arranged.
10. The anti-loosening device for the metering pump flow regulating mechanism according to claim 9, wherein: the front end of the supporting piece (3) is provided with at least one observation port (35) which is arranged along the axial direction of the supporting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220426832.XU CN216922392U (en) | 2022-03-01 | 2022-03-01 | Anti-loosening device for flow regulating mechanism of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220426832.XU CN216922392U (en) | 2022-03-01 | 2022-03-01 | Anti-loosening device for flow regulating mechanism of metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922392U true CN216922392U (en) | 2022-07-08 |
Family
ID=82225427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220426832.XU Expired - Fee Related CN216922392U (en) | 2022-03-01 | 2022-03-01 | Anti-loosening device for flow regulating mechanism of metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922392U (en) |
-
2022
- 2022-03-01 CN CN202220426832.XU patent/CN216922392U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5082429A (en) | Peristaltic pump | |
| US6067868A (en) | Anti-rotation mechanism in a screw type linear actuator | |
| CN216922392U (en) | Anti-loosening device for flow regulating mechanism of metering pump | |
| KR102082598B1 (en) | Installation device | |
| DE10119236C1 (en) | Axial piston machine with an inclined axis design, with a swivel angle sensor | |
| CN210879493U (en) | Screw tightening mechanism with controllable inclination angle alignment | |
| CN210352804U (en) | Position limiter for fishing reel seat | |
| CN211550255U (en) | Hinge bolt | |
| US7628380B1 (en) | Self-compensating packing gland | |
| CN109882017B (en) | Material door opening and closing locking device | |
| CN113251272A (en) | Camera support | |
| JP5299202B2 (en) | Mirror for work machine | |
| CN215890665U (en) | Anti-loosening device for servo oil cylinder | |
| CN208456858U (en) | Slide valve self-regulating mechanism and helical-lobe compressor | |
| CN112388565A (en) | Inclination angle alignment controllable thread tightening mechanism and operation method | |
| CN215115184U (en) | Clamping and fixing assembly | |
| CN217029500U (en) | Cylinder erection bracing seat | |
| CN220082061U (en) | Locking device, adjusting mechanism, dust removing system and engineering machinery | |
| CN221037070U (en) | Foot rest for firearm | |
| CN220964567U (en) | Motor with encoder | |
| CN220731276U (en) | Rubber magnet convenient to installation | |
| CN215931081U (en) | Fixed bolster and detector | |
| CN220687733U (en) | Split guide sleeve for hydraulic support cylinder | |
| CN110864679B (en) | Shafting automatic tensioning and releasing device for gyro north finder | |
| CN220378594U (en) | Oil cylinder of external sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |