CN206216545U - Clamping device - Google Patents

Abstract

The utility model provides a kind of clamping device.Clamping device includes：Grip part；Clamping device, it is rotatably arranged on grip part, one end away from grip part of clamping device forms the clamping part with opening, clamping part has the clamped condition for clamping thing to be held and the releasing orientation for unclamping thing to be held under the driving of grip part, when external force acts on grip part, grip part drives clamping part to switch to clamped condition by releasing orientation.Valve block is difficult to take out when the technical solution of the utility model can solve the problems, such as that the valve seat endoporus of plunger displacement pump in the prior art has corner.

Description

Clamping device

Technical field

The utility model is related to field of tool, in particular to a kind of clamping device.

Background technology

Uphole steam generator mainly uses single-acting high pressure reciprocating plunger pump.The fluid end of reciprocating plunger pump it is main by The pump housing, valve seat, valve block, fairlead, spring, spring capping, filler chamber, filler, gland etc. are constituted.

Gap between the valve seat endoporus and valve block outer wall of reciprocating plunger pump is smaller, and valve block is located at and has with valve seat end face In having a valve seat endoporus of certain distance.In maintenance activity, because valve seat endoporus has corner, directly it is difficult to take valve block with hand Go out.

Utility model content

Main purpose of the present utility model is to provide a kind of clamping device, to solve the valve seat of plunger displacement pump in the prior art Valve block is difficult to the problem taken out when endoporus has corner.

To achieve these goals, according to one side of the present utility model, there is provided a kind of clamping device, clamping device Including：Grip part；Clamping device, is rotatably arranged on grip part, and one end away from grip part of clamping device forms tool There is the clamping part of opening, clamping part has the clamped condition and release thing to be held for clamping thing to be held under the driving of grip part Releasing orientation, when external force acts on grip part, grip part drive clamping part clamped condition is switched to by releasing orientation.

Further, grip part includes first support arm and the second support arm that be connected with first support arm, and clamping device includes the Three support arms and the 4th support arm, the 3rd support arm are rotatably coupled with first support arm, and the 4th support arm rotationally connects with second support arm Connect, one end away from grip part of the 3rd support arm and the 4th support arm forms clamping part.

Further, thing to be held is the valve block in valve seat endoporus, and clamping device also includes being connected with clamping device Gripping and fixed plate, gripping and fixed plate is the arc being adapted with the profile of valve block.

Further, the free end of the 3rd support arm and the 4th support arm is provided with gripping and fixed plate, two gripping and fixed plates Surround clamping part.

Further, the thickness h of gripping and fixed plate is less than the distance between valve block and valve seat endoporus.

Further, connected by connecting portion between first support arm and second support arm.

Further, clamping device also includes the lock part for being locked in clamping device on grip part, lock portion It is not connected with grip part and clamping device.

Further, lock part has multiple locking faces, and clamping device and grip part are respectively provided with the lock coordinated with lock part Only hole, locking hole optionally coordinates with least one of multiple locking faces.

Further, lock part is bolt or pin, is equipped with clamping device and grip part logical with what lock part coordinated Hole, lock part sequentially passes through two through holes and is locked on grip part with by clamping device.

Further, clamping device, clamping device also includes reset portion, and one end of reset portion is connected with first support arm, multiple The other end in position portion is connected with second support arm, and elastic force is applied so that clamping device is in pine when external force is not received with to grip part Open state.

Using the technical solution of the utility model, clamping device includes grip part and clamping device, and clamping device is rotatable Be arranged on grip part, form the clamping part with opening, and clamping part away from one end of grip part in clamping device There is the clamped condition for clamping thing to be held and the releasing orientation for unclamping thing to be held under the driving of grip part, so, when this When clamping device is applied to plunger displacement pump, angle of the clamping device relative to grip part can be set according to the corner of valve seat endoporus, In clamping device is stretched into the corner of valve seat endoporus, and clamping part is set to stretch into the gap between valve seat endoporus and valve block In, when external force acts on grip part, grip part drives clamping part to be in clamped condition, so as to clamp valve block, conveniently and efficiently Valve block is taken out from the valve seat endoporus with corner.

Brief description of the drawings

The Figure of description for constituting the part of the application is used for providing being further understood to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings：

Fig. 1 shows the structural representation of the embodiment according to clamping device of the present utility model；And

Structural representation when Fig. 2 shows that the angle between the clamping device of the clamping device in Fig. 1 and grip part is 90 ° Figure.

Wherein, above-mentioned accompanying drawing is marked including the following drawings：

10th, grip part；11st, first support arm；12nd, second support arm；20th, clamping device；21st, the 3rd support arm；22nd, the 4th Arm；30th, lock part；40th, reset portion；50th, gripping and fixed plate；60th, connecting portion.

Specific embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The utility model provides a kind of clamping device.In the utility model and embodiment of the present utility model, clamping Device is used to take out the valve block in the valve seat endoporus of reciprocating plunger pump.

Certainly, the clamping device in the utility model and embodiment of the present utility model can also be answered in other devices With the thing to be held in endoporus of the taking-up with corner.In embodiment of the present utility model, in order to solve plunger in the prior art Valve block is difficult to the problem taken out when the valve seat endoporus of pump has corner, it is proposed that a kind of clamping device, specifically described below：

As depicted in figs. 1 and 2, in embodiment of the present utility model, clamping device includes grip part 10 and clamping device 20. Clamping device 20 is rotatably arranged on grip part 10, and one end away from grip part 10 of clamping device 20 is formed has opening Clamping part.Clamping part has the clamped condition for clamping thing to be held and the pine for unclamping thing to be held under the driving of grip part 10 Open state.When external force acts on grip part 10, grip part 10 drives clamping part to switch to clamped condition by releasing orientation.

By above-mentioned setting, when the clamping device is used for reciprocating plunger pump, can be set according to the corner of valve seat endoporus Determine angle of the clamping device 20 relative to grip part 10, in clamping device 20 is stretched into the corner of valve seat endoporus, and make folder The portion of holding can be stretched into the gap between valve seat endoporus and valve block.When external force acts on grip part 10, grip part 10 drives folder Hold portion and clamped condition is switched to by releasing orientation, so as to clamp valve block, conveniently and efficiently by valve block from the valve seat with corner Taken out in hole.

Further, the valve block in valve seat is gripped using clamping device, the work that can also reduce staff is strong Degree, improves the maintenance efficiency of plunger displacement pump.

As depicted in figs. 1 and 2, in embodiment of the present utility model, grip part 10 include first support arm 11 and with first The second support arm 12 of the connection of arm 11.Clamping device 20 includes the 3rd support arm 21 and the 4th support arm 22, the 3rd support arm 21 and first Arm 11 is rotatably coupled, and the 4th support arm 22 is rotatably coupled with second support arm 12, the 3rd support arm 21 and the 4th support arm 22 One end away from grip part 10 forms clamping part.

By above-mentioned setting, grip part 10 includes the first support arm 11 and second support arm 12 that are connected with each other, can be in order to work Make personnel grip part 10 is applied to clamp the active force of valve block, convenient operation.Clamping device 20 includes the 3rd support arm 21 and the 4th Support arm 22, and the 3rd support arm 21 is rotatably coupled with first support arm 11, the 4th support arm 22 rotationally connects with second support arm 12 Connect, one end away from grip part 10 of the 3rd support arm 21 and the 4th support arm 22 forms clamping part, so can be in order to by work people Member is delivered on clamping device 20 to the active force that grip part 10 applies, and grip part 10 is driven clamping part in releasing orientation and folder Switch between tight state.

Preferably, in embodiment of the present utility model, grip part 10 has elasticity, so that grip part 10 is under external force It is easy to mediate.

As depicted in figs. 1 and 2, in embodiment of the present utility model, clamping device also includes what is be connected with clamping device 20 Gripping and fixed plate 50, gripping and fixed plate 50 is the arc being adapted with the profile of valve block.

By setting gripping and fixed plate 50 on clamping device 20, and gripping and fixed plate 50 is set to the profile with valve block The arc being adapted, so, can increase the contact area of clamping device and valve block.When staff applies to grip part 10 During clamping force, clamping device can more stably clamp valve block, make valve block be not easy to drop during taking-up.

Preferably, as depicted in figs. 1 and 2, in embodiment of the present utility model, the 3rd support arm 21 and the 4th support arm 22 from Gripping and fixed plate 50 is provided with by end, two gripping and fixed plates 50 surround clamping part.

Gripping and fixed plate 50 is set in the free end of the 3rd support arm 21 and the 4th support arm 22, by two gripping and fixed plates 50 Clamping part is surrounded, valve block can be clamped in order to clamping part, clamping device is taken out the valve in deeper valve seat endoporus Piece.

It is further preferable that as shown in figure 1, in embodiment of the present utility model, the thickness h of gripping and fixed plate 50 is less than valve block The distance between with valve seat endoporus.

By above-mentioned setting, after gripping and fixed plate 50 clamps valve block, outer surface and the valve seat endoporus of gripping and fixed plate 50 Gap is still present between surface, can avoid producing friction between the outer surface of gripping and fixed plate 50 and valve seat bore area, Make the process of taking-up valve block more smooth, facilitate staff to take out the operation of valve block.

Alternatively, in the unshowned alternate embodiment of accompanying drawing, the arc table towards valve seat endoporus of gripping and fixed plate 50 Face gradually tapers up along the direction away from clamping device 20, i.e., the thickness h of gripping and fixed plate 50 is by the 3rd support arm 21 and the 4th support arm 22 free end is gradually reduced to the direction away from grip part 10, with one end away from clamping device 20 of gripping and fixed plate 50 Form wedge shaped tip.

By above-mentioned setting, when clamping device 20 stretches into valve seat endoporus, even if valve block is not on together with valve seat endoporus Spindle Status, the wedge shaped tip of gripping and fixed plate 50 also can relatively easily extend into uneven between valve seat endoporus and valve block In gap, so as to be easier to clamp valve block.

As depicted in figs. 1 and 2, in embodiment of the present utility model, by connecting between first support arm 11 and second support arm 12 Socket part 60 is connected.

By setting connecting portion 60 between first support arm 11 and second support arm 12, be on the one hand conducive to expanding clamping device The opening size of 20 clamping part, reduces the active force applied needed for staff's clamping valve block, makes the clamping device can be in order to Clamp larger sized valve block；On the other hand, grip part 10 can be made to be easy to manufacture.

Preferably, the bending structure that first support arm 11, second support arm 12 and connecting portion 60 are formed in one.

First support arm 11, second support arm 12 and connecting portion 60 are integrally formed can improve bonding strength, prevent junction It is broken.

As depicted in figs. 1 and 2, in embodiment of the present utility model, clamping device is also included for clamping device 20 to be locked The lock part 30 on grip part 10 is scheduled on, lock part 30 is connected with grip part 10 and clamping device 20 respectively.

By setting the lock part 30 being connected with grip part 10 and clamping device 20 respectively on clamping device, by locking Be locked in clamping device 20 on grip part 10 by portion 30, can prevent the relative gripping during valve block is clamped of clamping device 20 Portion 10 rotates, and improves the reliability during clamping device use.

Alternatively, in embodiment of the present utility model, lock part 30 has multiple locking faces, clamping device 20 and grip part 10 are respectively provided with the locking hole coordinated with lock part 30, and locking hole optionally coordinates with least one of multiple locking faces.

By above-mentioned setting, when clamping device 20 and grip part 10 are in multiple angles, the locking face of lock part 30 Coordinate with locking hole, clamping device 20 can be accurately fixed to by the locking face of lock part 30 and locking hole cooperation relative In in multiple angles of grip part 10.

Specifically, the locking hole of " M shape ", the cross section of lock part 30 are equipped with clamping device 20 and grip part 10 Can be " yi word pattern ", " T-shaped " or " cross ".

By above-mentioned setting, clamping device 20 can be accurately fixed on eight lock positions of different angles by lock part 30 On.

Preferably, in embodiment of the present utility model, lock part 30 is bolt.It is all provided with clamping device 20 and grip part 10 There is the through hole coordinated with bolt, two through holes of screw bolt passes are locked on grip part 10 with by clamping device 20.

Bolt is set to by by lock part 30, two through holes on screw bolt passes clamping device 20 and grip part 10 Nut check is used afterwards, so as to clamping device 20 is locked on grip part 10.So, clamping device 20 is turned to relative to gripping Portion 10 it is arbitrarily angled when can fix, improve the applicability of clamping device, and bolt connection is easy to dismounting, facilitates work Make the operation of personnel.

Alternatively, in embodiment of the present utility model, lock part 30 is pin.It is all provided with clamping device 20 and grip part 10 There is the through hole coordinated with pin, pin sequentially passes through two through holes and is locked on grip part 10 with by clamping device 20.

By pin fixing and holding mechanism 20 can by clamping device be fixed on relative to grip part 10 it is arbitrarily angled on, And make locking of the lock part 30 to clamping device 20 relatively reliable.

Specifically, as depicted in figs. 1 and 2, clamping device 20 at least has and first that the angle of grip part 10 is 180 ° Lock position and with the second lock position that the angle of grip part 10 is 90 °.

As depicted in figs. 1 and 2, in embodiment of the present utility model, clamping device also includes reset portion 40, reset portion 40 One end is connected with first support arm 11, and the other end of reset portion 40 is connected with second support arm 12, and elastic force is applied with to grip part 10 So that clamping device 20 is in releasing orientation when external force is not received.

The reset portion 40 being connected with first support arm 11 and second support arm 12 by setting, can be such that clamping part stretches into valve seat Kong Hou, grip part 10 is switched to releasing orientation under the elastic force that reset portion 40 applies.Under the limitation of valve seat endoporus, clamping part Opening size be adapted with the size of valve seat endoporus, now to clamping device is promoted in valve seat endoporus, clamping part will be easy to stretch Enter in the gap between valve block and valve seat endoporus, thus clamping device is easier to clamp valve block.

Preferably, as depicted in figs. 1 and 2, in embodiment of the present utility model, reset portion 40 is spring.

Specifically, when the springs are compressed, the opening size of clamping part, when spring reset, is pressed from both sides less than the external diameter of valve block The diameter of the opening size more than valve seat endoporus in portion is held, so that spring can clamp valve block when being compressed, is clamped during spring reset The opening size in portion is adapted with the size of valve seat endoporus.

Clamping device of the present utility model can also reduce the labour intensity of staff, improve the maintenance effect of plunger displacement pump Rate.Some plunger displacement pump liquid feed valves, tapping valve aperture it is smaller, valve block is smaller with the gap of valve seat endoporus, even if valve seat endoporus does not have There is corner, in maintenance activity, staff also is difficult to take out valve block with finger.For example, valve seat internal orifice dimension is 80mm, valve block A diameter of 74mm.After spring capping, spring are taken out, because valve block is too small with interporal lacuna in valve seat, valve block is taken out with hand Become extremely difficult.Staff can be quickly to take valve block using clamping device of the present utility model from valve seat endoporus Go out, therefore labour intensity can be reduced, maintenance time was foreshortened to 1 minute by 5 minutes, improve the operational efficiency of injection boiler.

Tests prove that, clamping device of the present utility model is adapted to make in 3GP-9.2/20,3GP-7/20 type plunger displacement pump With.

Below, the specific embodiment to the clamping device of the present embodiment is illustrated：

When taking the tapping valve valve block of plunger displacement pump, using the resilient force of the reset portion 40 of clamping device, gripping and fixed plate Among 50 gaps that can exactly insert valve seat internal orifice dimension and valve block, grip part 10, the gripping and fixed plate being oppositely arranged are mediated 50 can clamp valve block, lift then up, such that it is able to quickly and smoothly take out valve block.

Feed liquor valve base endoporus has corner, when taking the liquid feed valve valve block of plunger displacement pump, by clamping device 20 relative to gripping After 90 ° of portion's bending, using the resilient force of reset portion 40, gripping and fixed plate 50 is inserted into valve seat internal orifice dimension and valve block exactly Gap among, mediate grip part 10, the gripping and fixed plate 50 being oppositely arranged can clamp valve block, lift then up so that Can quickly, smoothly by valve block take out.

As can be seen from the above description, the utility model the above embodiments realize following technique effect：Clamping Device includes grip part and clamping device, and clamping device is rotatably arranged on grip part, in clamping device away from gripping The one end in portion forms the clamping part with opening, and clamping part has the clamped condition for clamping valve block under the driving of grip part With the releasing orientation for unclamping valve block, so, angle of the clamping device relative to grip part can be set according to the corner of valve seat endoporus Degree, in clamping device is stretched into the corner of valve seat endoporus, and allows clamping part to stretch between valve seat endoporus and valve block In gap, when external force acts on grip part, grip part drives clamping part to switch to clamped condition by releasing orientation, so as to clamp Valve block, conveniently and efficiently takes out valve block from the valve seat endoporus with corner, reduces the labour intensity of staff, shortens post The maintenance time of pump is filled in, the operational efficiency of injection boiler is improved.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of clamping device, it is characterised in that the clamping device includes：

Grip part (10)；

Clamping device (20), be rotatably arranged on the grip part (10), and the clamping device (20) is held away from described The one end for holding portion (10) forms the clamping part with opening, and the clamping part has clamping under the driving of the grip part (10) The clamped condition of thing to be held and the releasing orientation of the release thing to be held, when external force acts on the grip part (10), The grip part (10) drives the clamping part to switch to the clamped condition by the releasing orientation.

2. clamping device according to claim 1, it is characterised in that the grip part (10) including first support arm (11) and The second support arm (12) being connected with the first support arm (11), the clamping device (20) includes the 3rd support arm (21) and the 4th Arm (22), the 3rd support arm (21) is rotatably coupled with the first support arm (11), the 4th support arm (22) with it is described Second support arm (12) is rotatably coupled, the 3rd support arm (21) and the 4th support arm (22) away from the grip part (10) one end forms the clamping part.

3. clamping device according to claim 2, it is characterised in that the thing to be held is the valve in valve seat endoporus Piece, the clamping device also includes the gripping and fixed plate (50) being connected with the clamping device (20), the gripping and fixed plate (50) it is the arc that is adapted with the profile of the valve block.

4. clamping device according to claim 3, it is characterised in that the 3rd support arm (21) and the 4th support arm (22) free end is provided with the gripping and fixed plate (50), and two gripping and fixed plates (50) surround the clamping part.

5. clamping device according to claim 3, it is characterised in that the thickness h of the gripping and fixed plate (50) is less than institute State the distance between valve block and described valve seat endoporus.

6. the clamping device according to any one of claim 2 to 5, it is characterised in that the first support arm (11) and institute State and connected by connecting portion (60) between second support arm (12).

7. clamping device according to any one of claim 1 to 5, it is characterised in that the clamping device also includes using In the lock part (30) being locked in the clamping device (20) on the grip part (10), the lock part (30) respectively with institute State grip part (10) and the clamping device (20) connection.

8. clamping device according to claim 7, it is characterised in that the lock part (30) is with multiple locking faces, institute State clamping device (20) and the grip part (10) are respectively provided with the locking hole coordinated with the lock part (30), the locking hole choosing Coordinate with least one of the multiple locking face to selecting property.

9. clamping device according to claim 7, it is characterised in that the lock part (30) is bolt or pin, described The through hole coordinated with the lock part (30), the lock part (30) are equipped with clamping device (20) and the grip part (10) Two through holes are sequentially passed through to be locked on the grip part (10) with by the clamping device (20).

10. the clamping device according to any one of claim 2 to 5, it is characterised in that the clamping device also includes multiple Position portion (40), one end of the reset portion (40) is connected with the first support arm (11), the other end of the reset portion (40) with Second support arm (12) connection, elastic force is applied so that the clamping device (20) is not by outer with to the grip part (10) The releasing orientation is in during power.