CN2850068Y - Hydraulic wire crimping machine - Google Patents
Hydraulic wire crimping machine Download PDFInfo
- Publication number
- CN2850068Y CN2850068Y CN 200520077437 CN200520077437U CN2850068Y CN 2850068 Y CN2850068 Y CN 2850068Y CN 200520077437 CN200520077437 CN 200520077437 CN 200520077437 U CN200520077437 U CN 200520077437U CN 2850068 Y CN2850068 Y CN 2850068Y
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- oil
- pump
- low pressure
- valve
- oil outlet
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- Expired - Fee Related
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Abstract
The utility model relates to a crimping machine for hydraulic wires, which belongs to special equipment which is used in the construction or the maintenance of an electric power transmission circuitry. The utility model is composed of an oil tank, a power mechanism, a reversing valve, a pressure relief valve and an oil pumping mechanism, wherein the oil pumping mechanism is composed of an oil pump body, a high pressure oil outlet hole, a low pressure oil outlet hole, an eccentric shaft, an eccentric bearing, a driven gear, a pair of high pressure oil pumps and a low pressure oil pump, wherein the oil pump body is fixed on an oil box cover in a hanging mode; the high pressure oil outlet hole and the low pressure oil outlet hole are arranged on the oil pump body to be connected with an oil path of the pressure relief valve; the eccentric shaft is in longitudinal arrangement, the upper end is pivoted in the center of the oil pump body, and the lower end is fixedly provided with the eccentric bearing; the driven gear is fixedly arranged on the top of the eccentric shaft to be connected with the power mechanism; the high and the low pressure oil pumps are fixed on the oil pump body in the hanging mode and respectively have an actuating piece which touches the eccentric bearing; pump cavities of the high and the low pressure oil pumps are respectively communicated with the high pressure oil outlet hole and the low pressure oil outlet hole. The utility model has the advantages that the oil pumping mechanism is vertically connected with the power mechanism to fully utilize the space and reduce occupation area and be favorable to work and transportation; the oil pumping forms of the high and the low pressure oil pumps are changed into the actuating form of the eccentric bearing; the utility model has simple structure and a few components to be favorable to assembly.
Description
Technical field
The utility model designs a kind of hydraulic wire crimping connector, is used for crimping or reinforcement to lead or steel strand wire, belongs to the special equipment in electric power transmission line construction or the maintenance.
Background technology
It is disclosed by fuel tank to press the Chinese patent patent No. 200420079628.7, actuating unit, reversal valve, pressure-relief valve, the technical scheme that pump oil mechanism forms and the hydraulic wire crimping connector released, solved by China Patent No. and be respectively 97235618.5,97235829.3,97235830.7 disclosed conductor compression jointing tongs, power source ultrahigh-pressure hydraulic pump and the existing following shortcoming of ultrahigh-pressure hydraulic pump: because the hydraulic pressure pump structure imperfection of control crimping, it promptly is the one-level pump, in whole hydraulic pump works process, the flow of hydraulic oil shows as height, the equal flow work of low pressure, no matter also promptly be idle stroke, still in load (crimping) or this three phases of return, hydraulic oil is in equal flow status all the time, thereby not only cause the speed of service slow, overall efficiency is low, and it is big to cause component wear.
But, the applicant thinks, because being in transmission connection between actuating unit and the oil pump shows as horizontal the connection, thereby makes whole hydraulic wire crimping connector be horizontal state, the deficiency that this state brought is to effectively utilize the space, cause footprint area big, and the electric power transmission line construction all belongs to field operation, and it is small and exquisite always to wish that the crimping function demonstrates fully, and too huge is the big press-connection machine of floor space, not only unfavorable to saving the operation place, and shipment brought inconvenience; In addition, the pump oil mode of the disclosed pump of above-mentioned patent oil mechanism be by platen, wobbler shaft be used for embody, can bring into play the work effect well in order to make platen, wobbler shaft, also must be by means of other associated components, therefore, total shows as complexity, makes troubles for processing, assembling etc.
Summary of the invention
Task of the present utility model be to provide a kind of area occupied that can effectively save self, to field work bring convenient transportation, pump oil mechanism structure is compact and simple hydraulic wire crimping connector.
Task of the present utility model is finished like this, a kind of hydraulic wire crimping connector, it is by fuel tank 1, actuating unit 2, be located at the reversal valve 3 on the fuel tank cap 13 of fuel tank 1, the oily mechanism 5 of and pump that with pressure-relief valve 4 oil circuits be connected that link with actuating unit that is located at the pressure-relief valve 4 that is connected with reversal valve 3 oil circuits in the fuel tank 1 and is located in the fuel tank 1 forms, the oily mechanism 5 of described pump is by oil pump body 15, high, low pressure oil oil outlet 17,29, eccentric shaft 16, capacity eccentric bearing 22, a high-pressure oil pump 19 that driven gear 8 is identical with a pair of structure and a structure and high-pressure oil pump 19 identical low pressure fuel pumps 24 constitute, oil pump body 15 outstanding being fixed on the fuel tank cap 13 of fuel tank 1, high, low pressure oil oil outlet 17,29 are opened on the oil pump body 15, be connected with described pressure-relief valve 4 oil circuits, eccentric shaft 16 is vertical setting, its upper end is by means of pair of bearings 36,14 and hub setting in oil pump body 15 central authorities, and the lower end sets firmly capacity eccentric bearing 22, driven gear 8 is installed with the top at eccentric shaft 16 oil pump bodies that the upper end was passed through 15, and connect with actuating unit 2, high, low pressure fuel pump 19,24 is outstanding solid on oil pump body 15, their each tools one be horizontally disposed and described capacity eccentric bearing 22 paste mutually touch and play the actuator of pumping effect, height by the mat that capacity eccentric bearing 22 promotes, low pressure fuel pump 19,24 pump chamber respectively with height, low pressure oil oil outlet 17,29 communicate.
Height described in the utility model, low pressure fuel pump 19,24 respectively by the pump housing, oil outlet 43, valve 41, valve seat 40, sealing ring 39, fuel feed hole 48, spring 47, valve 46, valve seat 45, screen pack 44, plunger 21, spring 20 constitutes, the pump housing is fixed on the oil pump body 15 by screw 42, oil outlet 43 is opened in the top of the pump housing and entreats the position between two parties, valve 41, valve seat 40, sealing ring 39 is successively set on the oil outlet 43, fuel feed hole 48 is opened in the positive side of the pump housing and entreats the position between two parties, spring 47, valve 46, valve seat 45 is successively set on the fuel feed hole 48, screen pack 44 fixes corresponding to fuel feed hole 48 and with the pump housing, spring 20 is nested with on plunger 21, passing through pump housing dorsal part as an end of the plunger 21 of described actuator entreats the position to enter into pump chamber between two parties, and it is corresponding with the position of fuel feed hole 48, the other end of plunger 21 expands to be established, and pastes mutually with described capacity eccentric bearing 22 and to touch.
The base portion of hydraulic oil oil outlet 17 described in the utility model has a pair of oil outlet 38, and the oil outlet 43 of the high oil pump 19 that a pair of oil outlet 38 is identical with described a pair of structure communicates.
The cross sectional shape of oil pump body 15 described in the utility model is I-shaped, and described bearing 36,14 is separately positioned on I-shaped upper and lower part.
The bottom of high and low pressure oil pump 19,24 described in the utility model is linked by web 50 respectively.
Actuating unit 2 described in the utility model mainly is made of gasoline engine and driving gear 12, gasoline engine is fixed on the fuel tank cap 13 by means of support 10, driving gear 12 is installed on the main shaft 11 as power output shaft of gasoline engine, nibbles with described driven gear 8 and joins.
The utility model is on described fuel tank cap 13 and be close to described reversal valve 3 places and have additional a filter screen 30 that is used to filter from the hydraulic oil of reversal valve 3, and the fuel feed hole 23 of this filter screen 30 communicates with the spill port joint 32 that extends on reversal valve 3.
The advantage of the utility model structure is: because with being connected to vertical connection the between pump oil mechanism 5 and the actuating unit 2, thereby can make full use of the space and littleization floor space helps operation and transportation; Because the pump oil form of high and low pressure oil pump 19,24 is become the start form of capacity eccentric bearing by original presser plate, thus have simple in structure, parts are few and be beneficial to assembling.
Description of drawings
Fig. 1 is a sectional structure chart of the present utility model.
Fig. 2 is the structure chart of the oily mechanism 5 of pump of the present utility model.
Fig. 3 is the sectional structure chart of pressure-relief valve 4 of the present utility model.
Fig. 4 is the sectional structure chart of reversal valve 3 of the present utility model.
Fig. 5 is the connection diagram of the utility model and hydraulic tongs 74.
Embodiment
In Fig. 1, a rectangular-shaped and fuel tank that is used for holding hydraulic oil 1 sealing also is installed with arm-rest frame 9 on the fuel tank cap 13 of fuel tank 1.Be fixed on the top of a support 10 as the gasoline engine of actuating unit 2, and the bottom of support 10 is fixed on the fuel tank cap 13, concrete fixed form is finished with bolt as much as possible, as on the main shaft 11 of the power output shaft of gasoline engine by axle sleeve and with the solid driving gear 12 of flat key key, this driving gear 12 is well nibbled with the driven gear 8 of pump oil mechanism 5 and is joined, and driven gear 8 is similarly by means of the solid top in eccentric shaft 16 fuel tank cap that stretches out 13 of key key.The top of eccentric shaft 16 rotatably is located on the oil pump body 15 by bearing 36,14, and the bottom of bottom installs capacity eccentric bearing 22, and with jump ring 49 block (see figure 2)s.The shared hydraulic oil oil outlet 17 of a pair of high-pressure oil pump 19 is communicated with the hydraulic oil fuel feed hole joint 26 of pressure-relief valve 4 by high-pressure oil pipe 18, and the low pressure oil oil outlet 29 of a low pressure fuel pump 24 is communicated with the low pressure oil fuel feed hole joint 28 of pressure-relief valve 4 by low pressure pipe.
Pressure-relief valve 4 described in the utility model is arranged in the case chamber of fuel tank 1 as high and low pressure oil pump 19,24 ground, when user mode, all is immersed in the fluid of hydraulic oil in case chamber.The hydraulic oil oil outlet joint 27 of pressure-relief valve 4 is communicated with the fuel feed hole joint 31 of reversal valve 3 by oil pipe, for the concrete structure of pressure-relief valve 4 will be below chat during to the description of Fig. 4 and.
Reversal valve 3 of the present utility model is installed on the fuel tank cap 13 of fuel tank 1, only be that fuel feed hole joint 31, Pressure gauge delivery connection 7 are stretched in the case chamber of fuel tank 1, the left and right oilhole 33a, the 33b that provide on the reversal valve 3 are used for connecting hydraulic oil pipe 72 (see figure 5)s, about the concrete structure of reversal valve 3 will be the time to the description of Fig. 3 detailed and.
In Fig. 2, though this figure has only provided in a pair of high-pressure oil pump 19 one of them, but because both structures and effect are equivalences fully, therefore can not bring obstacle to understanding, equally, the structure of low pressure fuel pump 24 and high-pressure oil pump 19 also duplicate, and only are that the plunger 21 of low pressure fuel pump 24 is bigger than the plunger 21 of high-pressure oil pump 19.Like this, because low pressure fuel pump 24 each oil masses that pump are greater than high oil pump 19 each oil masses that pump, so the former pressure is lower than the latter apparently.The structure of given high and low pressure oil pump 19,24 as can be known from figure, when capacity eccentric bearing 22 acts on them, promptly when capacity eccentric bearing 22 promotes plunger 21, plunger 21 bounces back in the pump housing behind the active force that overcomes spring 20, the valve 46 of this moment is just closed, then unlatching of valve 41, vice versa.A pair of high-pressure oil pump 19 and low pressure fuel pump 24 link with web 50 in their bottom, specifically are to pass through the screw of presetting on the web 50 with screw 42, and the screw that passed through again on the pump housing is affixed in the screw of the correspondence on the oil pump body 15 until spiral shell.As soon as high and low pressure oil pump 19,24 is fixed on the oil pump body 15, so, 43 of the oil outlets of a pair of high-pressure oil pump 19 are respectively by being opened on the oil pump body 15 and a pair of oil outlet 38 that be positioned at hydraulic oil oil outlet 17 base portions communicates with hydraulic oil oil outlet 17, that is to say, the hydraulic oil that comes from oil outlet 43 is in regular turn through oil outlet 38, hydraulic oil oil outlet 17, high-pressure oil pipe 18 and enter pressure-relief valve 4, and the reason of low pressure fuel pump 24 is similar.The cross sectional shape of the integral body of oil pump body 15 is I-shaped, and bearing 36 is located at I-shaped top, and bearing 14 then is located at I-shaped bottom, and by jump ring 37 blocks.
In Fig. 3, provided the concrete structure of reversal valve 3 of the present utility model, it is by valve body 55 and a pair of reversing arrangement on valve body 55 of continuing respectively, safety valve 34, fuel feed hole joint 31, Pressure gauge delivery connection 7, formations such as spill port joint 32 and oil duct, a pair of reversing arrangement is respectively by a left side, right screw rod 51,52, a left side, right tumbler gear 6a, 6b, a left side, right valve seat 60,53, a left side, right triangle valve 59,54, a left side, right ball valve 58,56, a left side, right spring 57a, 57b constitutes, a left side, right screw rod 51,52 separately by a corresponding left side, right screw rod cover 61a, 61b and being arranged on the valve body 55, more particularly, a left side, right screw rod 51,52 lower end snail fits over a left side separately, right screw rod cover 61a, on the 61b, and a left side, right screw rod cover 61a, 61b then spiral shell is solid on valve body 55, and and keep between the valve body 55 sealing, a left side, right screw rod 51,52 upper end is for setting firmly the left side that both are meshed each other, right tumbler gear 6a, 6b, one of them tumbler gear can be by handle 35 actuatings.Left and right valve seat 60,53 is provided in the below of left and right screw rod cover 61a, 61b, left and right triangle valve 59,54 corresponds respectively to the bottom of left and right screw rod 51,52, and be positioned at left and right screw rod cover 61a, 61b, left and right triangle valve 59,54 is corresponding with left and right ball valve 58,56, and left and right ball valve 58,56 contacts with left and right spring.Since the structure of this reversal valve 3 of the present utility model not only fully with the patent No. be 97235829.3 disclosed reversal valve structures identical but also with the patent No. be the structure of the described reversal valve of 20042007-9628.7 be equal to and action principle also in full accord, so the applicant no longer too comments it.
In Fig. 4, provided pressure-relief valve 4 of the present utility model, it is by valve body 62, low pressure oil fuel feed hole joint 28, safety valve 25, valve piece 71, valve 70, spring 69, attachment screw 68, joint 67, hydraulic oil fuel feed hole joint 26 and hydraulic oil oil outlet joint 27 constitute, both constitute low pressure oil fuel feed hole joint 28 and safety valve 25 symmetric position and are fixedly arranged on the valve body 62, wherein, safety valve 25 is by valve rod 66, spring 65, pressure-adjusting screw 64, spill port 63 constitutes, valve piece 71, valve 70, spring 69 is located in the valve body 62, by oil duct with low pressure oil fuel inlet fitting 28, safety valve 25, valve 70 communicates, one end of attachment screw 68 is attached on the valve body 62, the other end and joint 67 join, two sides of joint 67 hydraulic oil that continues respectively advances, oil outlet joint 26,27, hydraulic oil advances, oil outlet joint 26,27 oil duct communicates by the oil duct of described valve 70 with low pressure oil fuel feed hole joint 28.Because of the structure of pressure-relief valve 4 of the present utility model is to be that 200420079628.7 described structures are identical with the aforementioned disclosed binomial patent especially patent No., thus the applicant is equally no longer too detailed and.
In Fig. 5,, be attached to respectively by a pair of hydraulic oil pipe 72 on a pair of turnover oilhole joint 73 of left and right oilhole 33a, the 33b of reversal valve 3 and hydraulic tongs 74 as user mode.
The utility model is to come work like this, at first, operating personnel start the gasoline engine as the power source of actuating unit 2, main shaft 11 rotations, drive driving gear 12, because driving gear 12 is to be meshed with the driven gear 8 of pump oil mechanism 5, therefore, drive driven gear 8 by driving gear 12, be that dress is fixed on the eccentric shaft 16 because of driven gear 8 again, therefore eccentric shaft 16 rotations, under the effect of the capacity eccentric bearing 22 that is arranged at eccentric shaft 16 lower ends, the plunger 21 of an a pair of high-pressure oil pump 19 and a low pressure fuel pump 24 produces reciprocating motion and realizes pump oil.That is to say that spread to plunger 21 and overcome time spent of doing of spring 20 when capacity eccentric bearing 22, valve 46 is closed, and valve 41 is opened, otherwise valve 46 is opened, and valve 41 is closed.In this process, hydraulic oil in the fuel tank 1 enters in the pump housing through fuel feed hole 48 through filter screen 44 and valve 46, and the oil outlet 43 through valve 41 places enters high and low pressure oil outlet 17,29 respectively, hydraulic oil is sent into pressure-relief valve 4 by the high-pressure oil pipe 18 that is connected on hydraulic oil oil outlet 17 and the hydraulic oil fuel feed hole joint 26, by the oil pipe that continues between the fuel feed hole joint 31 of the hydraulic oil oil outlet joint 27 of pressure-relief valve 4 and reversal valve 3 hydraulic oil is sent into reversal valve 3; Low pressure oil then enters in the pressure-relief valve 4 (specifically can referring to Fig. 4) by being connected in pipeline between low pressure oil oil outlet 29 and the low pressure oil fuel feed hole joint 28.High and low pressure oil has imported pressure-relief valve 4, when the counterdie of hydraulic tongs 74 is in idle stroke, promptly draws close but when not entering the matched moulds state, the high and low pressure oil that converges in pressure-relief valve 4 enters into reversal valve 3 through fuel feed hole joint 31 jointly towards patrix.Because the counterdie of the hydraulic tongs 74 of this moment is in propradation, therefore the left screw rod 51 of reversal valve 3 is pushed left valve seat 60 open, thereby back down left ball valve 58, hydraulic oil enters into left oilhole 33a from the oil duct of left ball valve 58, enter into the oil pocket of hydraulic tongs 74 through hydraulic oil pipe 72, make the quick lifting of counterdie of hydraulic tongs 74; When the counterdie of hydraulic tongs 74 touches mutually with patrix, when also promptly arriving the lead be opposite between the upper and lower mould and carrying out the high pressure conditions of crimping, the safety valve 25 that low pressure oil is pushed pressure-relief valve 4 open enters filter screen 30, go into fuel tank 1 30 times from filter screen, hydraulic oil continues to enter into by aforesaid mode the oil pocket of hydraulic tongs 74, when pressure reached the pressure set points of reversal valve 3, hydraulic oil entered filter screen 30 through the safety valve 34 of reversal valve 3 by spill port joint 32 and returns into fuel tank 1.When crimping finishes, in the time of need making the counterdie returning quickly of hydraulic tongs 74, the right valve seat 53 of reversal valve 3 is pushed right ball valve 56 open, and hydraulic oil enters the epicoele of hydraulic tongs 74, the piston return of hydraulic tongs 74 through right oilhole 33b.
Although the applicant does too detailed narration to whole course of action of the present utility model, can not bring puzzlement to understanding because the action principle of whole hydraulic pressure process be with Chinese patent 200420079628.7 in the reason that disclosed be equal to.
Claims (7)
1, a kind of hydraulic wire crimping connector, it is by fuel tank (1), actuating unit (2), be located at the reversal valve (3) on the fuel tank cap (13) of fuel tank (1), the oily mechanism 5 of and pump that with pressure-relief valve (4) oil circuit be connected that link with actuating unit that is located at the pressure-relief valve (4) that is connected with reversal valve (3) oil circuit in the fuel tank (1) and is located in the fuel tank (1) forms, it is characterized in that described pump oil mechanism (5) is by oil pump body (15), high, low pressure oil oil outlet (17), (29), eccentric shaft (16), capacity eccentric bearing (22), the low pressure fuel pump (24) that a high-pressure oil pump (19) that driven gear (8) is identical with a pair of structure and a structure are identical with high-pressure oil pump (19) constitutes, oil pump body (15) is outstanding to be fixed on the fuel tank cap (13) of fuel tank (1), high, low pressure oil oil outlet (17), (29) be opened on the oil pump body (15), be connected with described pressure-relief valve (4) oil circuit, eccentric shaft (16) is vertical setting, its upper end is by means of pair of bearings (36), (14) and hub setting in oil pump body (15) central authorities, and the lower end sets firmly capacity eccentric bearing (22), driven gear (8) be installed with in eccentric shaft (16) upper end the top of the oil pump body that passed through (15), and connect with actuating unit (2), high, low pressure fuel pump (19), (24) outstanding solid on oil pump body (15), their each tools one be horizontally disposed and described capacity eccentric bearing (22) paste mutually touch and play the actuator of pumping effect, height by the mat that capacity eccentric bearing (22) promotes, low pressure fuel pump (19), (24) pump chamber respectively with height, low pressure oil oil outlet (17), (29) communicate.
2, hydraulic wire crimping connector according to claim 1, it is characterized in that described height, low pressure fuel pump (19), (24) each is by the pump housing, oil outlet (43), valve (41), valve seat (40), sealing ring (39), fuel feed hole (48), spring (47), valve (46), valve seat (45), screen pack (44), plunger (21), spring (20) constitutes, the pump housing is fixed on the oil pump body (15) by screw (42), oil outlet (43) is opened in the top of the pump housing and entreats the position between two parties, valve (41), valve seat (40), sealing ring (39) is successively set on the oil outlet (43), fuel feed hole (48) is opened in the positive side of the pump housing and entreats the position between two parties, spring (47), valve (46), valve seat (45) is successively set on the fuel feed hole (48), screen pack (44) fixes corresponding to fuel feed hole (48) and with the pump housing, spring (20) is nested with on plunger (21), passing through pump housing dorsal part as an end of the plunger (21) of described actuator entreats the position to enter into pump chamber between two parties, and it is corresponding with the position of fuel feed hole (48), the other end of plunger (21) expands to be established, and pastes mutually with described capacity eccentric bearing 22 and to touch.
3, hydraulic wire crimping connector according to claim 2, the base portion that it is characterized in that described hydraulic oil oil outlet (17) has a pair of oil outlet (38), and the oil outlet (43) of the high oil pump (19) that a pair of oil outlet (38) is identical with described a pair of structure communicates.
4, hydraulic wire crimping connector according to claim 2 is characterized in that the cross sectional shape of described oil pump body (15) is I-shaped, and described bearing (36), (14) are separately positioned on I-shaped upper and lower part.
5, hydraulic wire crimping connector according to claim 1 and 2 is characterized in that the bottom of described high and low pressure oil pump (19), (24) is linked by web (50) respectively.
6, hydraulic wire crimping connector according to claim 1, it is characterized in that described actuating unit (2) mainly is made of gasoline engine and driving gear (12), gasoline engine is fixed on the fuel tank cap (13) by means of support (10), driving gear (12) is installed on the main shaft as power output shaft (11) of gasoline engine, nibbles with described driven gear (8) and joins.
7, hydraulic wire crimping connector according to claim 1, it is characterized in that going up and be close to described reversal valve (3) in described fuel tank cap (13) locates to have additional a filter screen (30) that is used for filtering from the hydraulic oil of reversal valve (3), the fuel feed hole (23) of this filter screen (30) communicates with the spill port joint (32) that extends on reversal valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077437 CN2850068Y (en) | 2005-11-19 | 2005-11-19 | Hydraulic wire crimping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077437 CN2850068Y (en) | 2005-11-19 | 2005-11-19 | Hydraulic wire crimping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2850068Y true CN2850068Y (en) | 2006-12-20 |
Family
ID=37522538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077437 Expired - Fee Related CN2850068Y (en) | 2005-11-19 | 2005-11-19 | Hydraulic wire crimping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2850068Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532058A (en) * | 2013-09-30 | 2014-01-22 | 国家电网公司 | Aluminum tube crimping device |
| CN103594902A (en) * | 2013-10-18 | 2014-02-19 | 国家电网公司 | Electric hydraulic working table |
-
2005
- 2005-11-19 CN CN 200520077437 patent/CN2850068Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532058A (en) * | 2013-09-30 | 2014-01-22 | 国家电网公司 | Aluminum tube crimping device |
| CN103532058B (en) * | 2013-09-30 | 2018-05-29 | 国家电网公司 | A kind of aluminum pipe compression bonding apparatus |
| CN103594902A (en) * | 2013-10-18 | 2014-02-19 | 国家电网公司 | Electric hydraulic working table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20101119 |