CN110756721A - Hand pressing prevention device and hand pressing prevention system of squeeze riveter - Google Patents
Hand pressing prevention device and hand pressing prevention system of squeeze riveter Download PDFInfo
- Publication number
- CN110756721A CN110756721A CN201810837827.6A CN201810837827A CN110756721A CN 110756721 A CN110756721 A CN 110756721A CN 201810837827 A CN201810837827 A CN 201810837827A CN 110756721 A CN110756721 A CN 110756721A
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- Prior art keywords
- sleeve
- hand
- riveting
- squeeze riveter
- pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
Abstract
The invention relates to a hand pressing prevention device and a hand pressing prevention system of a squeeze riveter. The hand pressing prevention device of the squeeze riveter comprises a connecting rod, a connecting seat, a connecting sleeve, a conductive ring, a pressing rod, a fastening sleeve, a fastening screw, an insulating sleeve, a guide sleeve, an insulating guide sleeve seat, a first compression spring, a positive connecting terminal and a negative connecting terminal. The hand pressing prevention system of the squeeze riveter comprises a control power supply, an anode lead, a cathode lead, a branch cathode lead, a squeeze riveter control device and the hand pressing prevention device. The riveting control device is applied to the riveting machine, the riveting pressure cylinder is controlled to work or reset by electrifying or powering off the riveting control device, when the upper die is pressed down and contacts with a hand, the riveting control device can be quickly powered off, so that the riveting pressure cylinder is not pressed down and is quickly reset, the risk of pressing the hand is effectively avoided, and the safety protection performance is excellent.
Description
Technical Field
The invention relates to safety protection equipment in a press-riveting connection process, in particular to a hand pressing prevention device and a hand pressing prevention system of a press-riveting machine, and belongs to the technical field of press-riveting automation.
Background
The riveting is a method of upsetting the head of a clinch screw by an axial force to connect and fix a plurality of parts. In the riveting field, with the continuous improvement of automation technology, many original steps operated by manual work are gradually replaced by machines, but some processes still need manual participation, so that the safety problem of workers is a problem that enterprises need to pay attention to terminals. At present, hand pressure injury of workers is the most common safety problem, and although a hand pressure prevention protection device is already arranged on the market at present, the problem of insensitive reaction exists, and safety accidents are easy to occur.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a squeeze riveter hand-pressing prevention device and a squeeze hand-pressing prevention system, which have the advantages of compact structure, reasonable design, high sensitivity and excellent safety protection performance.
The first purpose of the invention is realized by the following technical scheme:
hand device is prevented pressing by squeeze riveter, its characterized in that: the connecting device comprises a connecting rod, a connecting seat, a connecting sleeve, a conductive ring, a pressure rod, a fastening sleeve, a fastening screw, an insulating sleeve, a guide sleeve, an insulating guide sleeve seat, a first compression spring, a positive connecting terminal and a negative connecting terminal; the connecting base is connected to the lower end of the connecting rod, the connecting sleeve is connected to the lower end of the connecting base, a central through hole of the connecting sleeve is divided into three sections according to different inner diameters, the three sections are sequentially a thick-diameter section, a middle section and a thin-diameter section from top to bottom, a first annular step is formed between the thick-diameter section and the middle section, and a second annular step is formed between the middle section and the thin-diameter section; the conductive ring is arranged in the thick-diameter section, and the lower end of the conductive ring is supported on the first annular step; the upper end of the pressure rod is arranged in the conductive ring in a penetrating mode, the fastening sleeve is fixed at the upper end of the pressure rod through a fastening screw, the outer diameter of the fastening sleeve is larger than that of the conductive ring, and the lower end face of the fastening sleeve abuts against the upper end face of the conductive ring; the insulating sleeve is arranged in the middle section and the small-diameter section of the connecting sleeve, an annular shoulder is arranged at the upper end of the insulating sleeve, and the annular shoulder is supported on the second annular step; the pressure lever is arranged in the insulating sleeve in a penetrating mode, an annular boss is arranged in the middle of the pressure lever, and the lower end face of the annular boss is abutted to the upper end face of the insulating sleeve; a concave cavity is formed in the bottom of the connecting seat, the guide sleeve is arranged in the concave cavity, and an insulating guide sleeve seat is arranged between the guide sleeve and the connecting seat; the first compression spring is arranged between the guide sleeve and the fastening sleeve, the upper end of the first compression spring is abutted against the guide sleeve, and the lower end of the first compression spring is abutted against the fastening sleeve; the center of the guide sleeve is connected with a positive connecting terminal for connecting an anode lead, and the positive connecting terminal and the connecting seat are insulated from each other; the connecting seat is also provided with a negative connecting terminal for connecting a cathode lead, and the side wall of the connecting seat is provided with a threading hole for threading the lead.
As a further improvement of the hand pressing prevention device, the center of the guide sleeve is provided with a positive terminal mounting hole, the center of the bottom of the connecting seat is provided with a through hole, the positive terminal penetrates through the through hole and then is connected into the positive terminal mounting hole, and an insulating pad is arranged between the end of the positive terminal and the connecting seat.
As a further improvement of the hand pressing prevention device, a negative terminal mounting hole is formed in the bottom of the connecting seat, and the negative terminal is connected in the negative terminal mounting hole.
As the hand pressing prevention device is further improved, the positive terminal and the negative terminal are both bolts, and the positive terminal mounting hole and the negative terminal mounting hole are both threaded holes.
As a further improvement of the hand pressing prevention device, the connecting seat is provided with an air pressure balance hole, the upper end of the air pressure balance hole is communicated with the inner cavity of the connecting seat, and the lower end of the air pressure balance hole is communicated with the inner cavity of the connecting sleeve.
As a further improvement of the hand pressing prevention device, a second compression spring is sleeved on the upper portion of the pressing rod, the upper end of the second compression spring is abutted to the fastening sleeve, and the lower end of the second compression spring is abutted to the upper end face of the annular boss on the pressing rod.
The second purpose of the invention is realized by the following technical scheme:
hand system is prevented pressing by squeeze riveter, its characterized in that: the device comprises a control power supply, an anode lead, a cathode lead, a branch cathode lead, a press-riveting control device and the hand-pressing prevention device; the positive electrode of the control power supply is connected with one end of an anode wire, and the other end of the anode wire is connected with a positive electrode wiring terminal in the hand pressing prevention device; the negative electrode of the control power supply is connected with one end of a cathode lead, and the other end of the cathode lead is connected with a negative electrode wiring terminal in the hand pressing prevention device; one end of the branch cathode lead is connected with the cathode wiring terminal, and the other end of the branch cathode lead is connected with the lower die of the squeeze riveter; the pressure riveting control device is connected to the anode lead or the cathode lead and is connected with the pressure riveting pressurizing cylinder, the pressure riveting pressurizing cylinder can be normally pressed down when the pressure riveting control device is powered on, and the pressure riveting pressurizing cylinder is reset when the pressure riveting control device is powered off; the hand pressing prevention device is arranged on a piston rod of the pressure riveting pressurization cylinder, and the lower end of a pressing rod of the hand pressing prevention device is connected with the upper die.
As a further improvement of the hand-pressing prevention system, the voltage of the control power supply does not exceed 24V.
As a further improvement of the hand pressing prevention system, the rivet pressing control device adopts a relay.
Compared with the prior art, the invention has the following advantages:
the riveting press cylinder is compact in structure, reasonable in design and high in sensitivity, is applied to the riveting press, can enable the riveting press cylinder not to be pressed down and to be reset quickly when the upper die is pressed down and contacts with hands, effectively avoids the risk of pressing the hands, and is excellent in safety protection performance.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is an electrical schematic diagram of embodiment 2 of the present invention.
Fig. 3 is a schematic view of an installation application of embodiment 2 of the present invention.
Description of reference numerals: 1-connecting rod, 2-connecting seat, 2 a-threading hole, 2 b-air pressure balance hole, 3-connecting sleeve, 3 a-thick diameter section, 3 b-middle section, 3 c-thin diameter section, 3 d-first annular step, 3 e-second annular step, 4-conductive ring, 5-pressure rod, 5 a-annular boss, 6-fastening sleeve, 7-fastening screw, 8-insulating sleeve, 8 a-annular shoulder, 9-guide sleeve, 10-insulating guide sleeve seat, 11-first compression spring, 12-positive terminal, 13-insulating pad, 14-negative terminal, 15-second compression spring, 16-control power supply, 17-positive lead (, 18-cathode lead, 19-branch cathode lead, 20-pressure riveting control device, 21-pressure riveting pressure cylinder, 22-upper die and 23-lower die.
Detailed Description
The invention is further illustrated by the following specific figures and examples.
Example 1
As shown in fig. 1, embodiment 1 discloses a squeeze riveter hand-pressing prevention device, which mainly comprises a connecting rod 1, a connecting seat 2, a connecting sleeve 3, a conductive ring 4, a pressure rod 5, a fastening sleeve 6, a fastening screw 7, an insulating sleeve 8, a guide sleeve 9, an insulating guide sleeve seat 10, a first compression spring 11, a positive terminal 12, an insulating pad 13, a negative terminal 14, a second compression spring 15 and the like.
Connecting seat 2 is connected at connecting rod 1 lower extreme, adapter sleeve 3 is connected at connecting seat 2 lower extreme, and the central through-hole of adapter sleeve 3 divide into the three-section according to the internal diameter difference, is thick footpath section 3a, interlude 3b and thin footpath section 3c from the top down in proper order, forms first annular step 3d between thick footpath section 3a and the interlude 3b, forms second annular step 3e between interlude 3b and the thin footpath section 3 c.
The conductive ring 4 is arranged in the thick-diameter section 3a, and the lower end of the conductive ring 4 is supported on the first annular step 3 d; the upper end of the pressure lever 5 is arranged in the conductive ring 4 in a penetrating mode, the fastening sleeve 6 is fixed to the upper end of the pressure lever 5 through a fastening screw 7, the outer diameter of the fastening sleeve 6 is larger than that of the conductive ring 4, and the lower end face of the fastening sleeve 6 abuts against the upper end face of the conductive ring 4; the insulating sleeve 8 is arranged in the middle section 3b and the small-diameter section 3c of the connecting sleeve 3, an annular shoulder 8a is arranged at the upper end of the insulating sleeve 8, and the annular shoulder 8a is supported on the second annular step 3 e; the pressing rod 5 penetrates through the insulating sleeve 8, an annular boss 5a is arranged in the middle of the pressing rod 5, and the lower end face of the annular boss 5a is abutted to the upper end face of the insulating sleeve 8.
A concave cavity is formed in the bottom of the connecting seat 2, the guide sleeve 9 is arranged in the concave cavity, and an insulating guide sleeve seat 10 is arranged between the guide sleeve 9 and the connecting seat 2; first compression spring 11 sets up between uide bushing 9 and adapter sleeve 6, and first compression spring 11 upper end and uide bushing 9 butt, first compression spring 11 lower extreme and adapter sleeve 6 butt.
The center of the guide sleeve 9 is provided with a positive terminal mounting hole, the center of the bottom of the connecting seat 2 is provided with a through hole, the positive terminal 12 penetrates through the through hole and then is connected into the positive terminal mounting hole, and an insulating pad 13 is arranged between the end of the positive terminal 12 and the connecting seat 2. A negative terminal mounting hole is formed in the bottom of the connecting seat 2, and the negative wiring terminal 14 is connected in the negative terminal mounting hole; and a threading hole 2a for threading a lead is formed in the side wall of the connecting seat 2.
In this embodiment 1, the positive terminal 12 and the negative terminal 14 both use bolts, and the positive terminal mounting hole and the negative terminal mounting hole are both provided with threaded holes. So set up, it is more convenient during the wiring.
As shown in fig. 1, in this embodiment 1, an air pressure balance hole 2b is formed in the connecting seat 2, an upper end of the air pressure balance hole 2b is communicated with an inner cavity of the connecting seat 2, and a lower end of the air pressure balance hole is communicated with an inner cavity of the connecting sleeve 3. So set up for the atmospheric pressure of connecting seat 2 upper and lower part keeps balanced, avoids influencing the removal that makes inside device.
As shown in fig. 1, in the present embodiment 1, the second compression spring 15 is sleeved on the upper portion of the pressing rod 5, the upper end of the second compression spring 15 abuts against the fastening sleeve 6, and the lower end of the second compression spring 15 abuts against the upper end surface of the annular boss 5a on the pressing rod 5. So set up, can provide the buffering of certain degree, further improve safety protection performance.
Example 2
As shown in fig. 2 and fig. 3, embodiment 2 discloses a squeeze riveter squeeze hand prevention system, which mainly comprises a control power supply 16, an anode lead 17, a cathode lead 18, a branch cathode lead 19, a squeeze riveter control device 20 and a squeeze hand prevention device, wherein the squeeze hand prevention device adopts the product in embodiment 1.
As shown in fig. 2 and 3, the positive electrode of the control power supply 16 is connected to one end of an anode lead 17, and the other end of the anode lead 17 is connected to the positive electrode terminal 12 of the anti-pressing device; the negative electrode of the control power supply 16 is connected with one end of a cathode lead 18, and the other end of the cathode lead 18 is connected with a negative electrode wiring terminal 14 in the hand-pressing prevention device; one end of the branch cathode lead 19 is connected with the cathode wiring terminal 14, and the other end of the branch cathode lead is connected with the lower die 23 of the squeeze riveter; the pressure riveting control device 20 is connected to the anode lead 17, the pressure riveting control device 20 is connected with the pressure riveting pressure cylinder 21, the pressure riveting pressure cylinder 21 can be normally pressed down when the pressure riveting control device 20 is powered on, and the pressure riveting pressure cylinder 21 is reset when the pressure riveting control device 20 is powered off; the hand pressing prevention device is arranged on a piston rod of the pressure riveting pressurization cylinder 21, and the lower end of a pressure rod 5 of the hand pressing prevention device is connected with an upper die 22.
In this embodiment 2, the voltage of the control power supply 16 does not exceed 24V, so as to ensure safe use. The rivet pressing control device 20 adopts a relay, is convenient to control and has low cost.
The working principle and the working process of the embodiment 2 are as follows:
in an initial state, the lower end of the conductive ring 4 is abutted to the connecting sleeve 3, the positive terminal 12 and the negative terminal 14 are connected and conducted sequentially through the guide sleeve 9, the first compression spring 11, the fastening sleeve 6, the conductive ring 4, the connecting sleeve 3 and the connecting seat 2, and the positive terminal 12 and the negative terminal 14 are connected and conducted through the anode lead 17 and the cathode lead 18 respectively to form a conducting loop, so that the press riveting control device 20 is electrified, and the press riveting pressurizing cylinder 21 can be normally pressed.
When the piston rod of the pressure riveting pressurizing cylinder 21 drives the upper die 22 to move downwards to the pressure riveting working position, the upper die 22 can be subjected to upward blocking force and pushes the pressing rod 5 to move upwards, the first compression spring 11 is compressed under the stress, the lower end of the conductive ring 4 is separated from the connecting sleeve 3, and the conductive ring 4 is disconnected from the connecting sleeve 3.
If a normal metal workpiece is arranged between the upper die 22 and the lower die 23, the metal workpiece can be conductive, so that the positive connecting terminal 12 and the negative connecting terminal 14 can be connected and conducted with the branch cathode lead 19 sequentially through the guide sleeve 9, the first compression spring 11, the fastening sleeve 6, the conductive ring 4, the compression bar 5, the upper die 22, the metal workpiece, the lower die 23 and the pressure riveting cylinder 21 still can be pressed normally, and the pressure riveting operation is completed.
If the hand is used between the upper die 22 and the lower die 23, the connection between the positive connecting terminal 12 and the negative connecting terminal 14 is broken due to the insulating gloves worn on the hand when the worker operates, the press-riveting control device 20 is powered off, the press-riveting pressure cylinder 21 is reset rapidly, and the worker is prevented from being pressed and injured.
The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the invention, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.
Claims (9)
1. Hand device is prevented pressing by squeeze riveter, its characterized in that: the connecting device comprises a connecting rod (1), a connecting seat (2), a connecting sleeve (3), a conductive ring (4), a pressure rod (5), a fastening sleeve (6), a fastening screw (7), an insulating sleeve (8), a guide sleeve (9), an insulating guide sleeve seat (10), a first compression spring (11), a positive connecting terminal (12) and a negative connecting terminal (14); the connecting seat (2) is connected to the lower end of the connecting rod (1), the connecting sleeve (3) is connected to the lower end of the connecting seat (2), a central through hole of the connecting sleeve (3) is divided into three sections according to different inner diameters, a thick-diameter section (3a), a middle section (3b) and a thin-diameter section (3c) are sequentially arranged from top to bottom, a first annular step (3d) is formed between the thick-diameter section (3a) and the middle section (3b), and a second annular step (3e) is formed between the middle section (3b) and the thin-diameter section (3 c); the conductive ring (4) is arranged in the thick-diameter section (3a), and the lower end of the conductive ring (4) is supported on the first annular step (3 d); the upper end of the pressure lever (5) is arranged in the conductive ring (4) in a penetrating mode, the fastening sleeve (6) is fixed to the upper end of the pressure lever (5) through a fastening screw (7), the outer diameter of the fastening sleeve (6) is larger than that of the conductive ring (4), and the lower end face of the fastening sleeve (6) abuts against the upper end face of the conductive ring (4); the insulating sleeve (8) is arranged in the middle section (3b) and the small-diameter section (3c) of the connecting sleeve (3), an annular shoulder (8a) is arranged at the upper end of the insulating sleeve (8), and the annular shoulder (8a) is supported on the second annular step (3 e); the pressure lever (5) is arranged in the insulating sleeve (8) in a penetrating mode, an annular boss (5a) is arranged in the middle of the pressure lever (5), and the lower end face of the annular boss (5a) is abutted to the upper end face of the insulating sleeve (8); a concave cavity is formed in the bottom of the connecting seat (2), the guide sleeve (9) is arranged in the concave cavity, and an insulating guide sleeve seat (10) is arranged between the guide sleeve (9) and the connecting seat (2); the first compression spring (11) is arranged between the guide sleeve (9) and the fastening sleeve (6), the upper end of the first compression spring (11) is abutted against the guide sleeve (9), and the lower end of the first compression spring (11) is abutted against the fastening sleeve (6); the center of the guide sleeve (9) is connected with a positive connecting terminal (12) used for connecting an anode lead (17), and the positive connecting terminal (12) is insulated from the connecting seat (2); the connecting seat (2) is also provided with a negative terminal (14) for connecting a cathode lead (18), and the side wall of the connecting seat (2) is provided with a threading hole (2a) for threading the lead.
2. The squeeze riveter hand-press preventing device of claim 1, characterized in that: the utility model discloses a lead frame, including uide bushing (9), connecting seat (2), anodal binding post (12), connecting seat (2) bottom center are equipped with the through-hole, anodal binding post (12) pass connect in the anodal terminal mounting hole behind the through-hole, are equipped with insulating pad (13) between the end of anodal binding post (12) and connecting seat (2).
3. The squeeze riveter hand-press preventing device of claim 2, characterized in that: the bottom of the connecting seat (2) is provided with a negative terminal mounting hole, and the negative terminal (14) is connected in the negative terminal mounting hole.
4. The squeeze riveter hand-press preventing device of claim 3, characterized in that: the positive terminal (12) and the negative terminal (14) are both bolts, and the positive terminal mounting hole and the negative terminal mounting hole are both threaded holes.
5. The squeeze riveter hand-press preventing device of claim 1, characterized in that: the connecting base (2) is provided with an air pressure balance hole (2b), the upper end of the air pressure balance hole (2b) is communicated with the inner cavity of the connecting base (2), and the lower end of the air pressure balance hole is communicated with the inner cavity of the connecting sleeve (3).
6. The squeeze riveter hand-press preventing device of claim 1, characterized in that: the upper portion of the pressing rod (5) is sleeved with a second compression spring (15), the upper end of the second compression spring (15) is abutted to the fastening sleeve (6), and the lower end of the second compression spring (15) is abutted to the upper end face of the annular boss (5a) on the pressing rod (5).
7. Hand system is prevented pressing by squeeze riveter, its characterized in that: comprises a control power supply (16), an anode lead (17), a cathode lead (18), a branch cathode lead (19), a press riveting control device (20) and the hand-press prevention device of any one of claims 1 to 6; the positive electrode of the control power supply (16) is connected with one end of an anode lead (17), and the other end of the anode lead (17) is connected with a positive connecting terminal (12) in the hand pressing prevention device; the negative electrode of the control power supply (16) is connected with one end of a cathode lead (18), and the other end of the cathode lead (18) is connected with a negative electrode wiring terminal (14) in the hand pressing prevention device; one end of the branch cathode lead (19) is connected with the cathode wiring terminal (14), and the other end of the branch cathode lead is connected with a lower die (23) of the squeeze riveter; the pressure riveting control device (20) is connected to the anode lead (17) or the cathode lead (18), the pressure riveting control device (20) is connected with the pressure riveting pressure cylinder (21), the pressure riveting pressure cylinder (21) can be normally pressed down when the pressure riveting control device (20) is powered on, and the pressure riveting pressure cylinder (21) resets when the pressure riveting control device (20) is powered off; the hand pressing prevention device is arranged on a piston rod of the pressure riveting pressurization cylinder (21), and the lower end of a pressing rod (5) of the hand pressing prevention device is connected with an upper die (22).
8. The squeeze riveter hand prevention system of claim 7, wherein: the voltage of the control power supply (16) does not exceed 24V.
9. The squeeze riveter hand prevention system of claim 7, wherein: the rivet pressing control device (20) adopts a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837827.6A CN110756721A (en) | 2018-07-26 | 2018-07-26 | Hand pressing prevention device and hand pressing prevention system of squeeze riveter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837827.6A CN110756721A (en) | 2018-07-26 | 2018-07-26 | Hand pressing prevention device and hand pressing prevention system of squeeze riveter |
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| Publication Number | Publication Date |
|---|---|
| CN110756721A true CN110756721A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810837827.6A Pending CN110756721A (en) | 2018-07-26 | 2018-07-26 | Hand pressing prevention device and hand pressing prevention system of squeeze riveter |
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| CN (1) | CN110756721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039297A (en) * | 2020-07-28 | 2020-12-04 | 横店集团英洛华电气有限公司 | Binding post and stator pressure equipment |
-
2018
- 2018-07-26 CN CN201810837827.6A patent/CN110756721A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039297A (en) * | 2020-07-28 | 2020-12-04 | 横店集团英洛华电气有限公司 | Binding post and stator pressure equipment |
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