CN220138915U - New forms of energy pencil riveting mechanism - Google Patents
New forms of energy pencil riveting mechanism Download PDFInfo
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- CN220138915U CN220138915U CN202321092981.8U CN202321092981U CN220138915U CN 220138915 U CN220138915 U CN 220138915U CN 202321092981 U CN202321092981 U CN 202321092981U CN 220138915 U CN220138915 U CN 220138915U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 42
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- 210000001503 joint Anatomy 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The utility model discloses a new energy wire harness riveting mechanism which comprises a base and a pressing rod correspondingly arranged right above the base, wherein the upper end surface of the base is connected with a first riveting piece, and the pressing rod is connected with a second riveting piece through a pressing plate; the pressure limiting assembly comprises a first supporting rod connected with the pressure plate towards the base and a second supporting rod connected with the base, and the first supporting rod corresponds to the second supporting rod; a guide rod is connected between the bottoms of the first supporting rod and the second supporting rod facing the base; according to the riveting mechanism provided by the utility model, the pressing distance between the pressing plate and the base is controlled through the interaction of the first supporting rod, the second supporting rod and the guide rod, so that the pressing position of the pressing plate can be intuitively judged and controlled, the wire harness connection stability is good, the wire harness is not easy to loose and break, and the use effect is improved.
Description
Technical Field
The utility model relates to the technical field of automobile wire harnesses. In particular to a new energy wire harness riveting mechanism.
Background
Since 2010, new energy automobile industry is brought into emerging industry, development of new energy automobiles in China, especially pure Electric Vehicles (EV), hybrid Electric Vehicles (HEV) and Fuel Cell Electric Vehicles (FCEV), becomes an important development and supporting object in China, which marks that the development, production, manufacturing and consumption level of new energy automobiles in China enters a fast lane, and in addition, in other operation vehicles such as municipal administration, sanitation and buses, the duty ratio of the new energy automobiles is gradually increased.
In order to reduce carbon dioxide emission and air pollution, reduce dependence on fossil fuel, reduce running cost and energy supplementing cost, the maintenance amount of electric vehicles is increased faster and faster, and the charging problem becomes the most concerned problem of more and more electric vehicles, and the automobile wire harness is an important component part of the new energy automobile, and the quality of the automobile wire harness directly influences the charging stability and safety of the automobile. When using, peg graft the end of pencil inside the jack of connecting piece, the effectual electric connection who realizes the pencil, compress tightly the open position of piece riveting at the connecting piece, inconvenient judgement compresses tightly the degree of depth that the piece pushed down and the degree of depth that the pencil inserted the connecting piece, cause riveting dynamics inadequately or excessively for the pencil is very easy to loosen or break off, causes the circuit break, influences the result of use.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to provide the new energy wire harness riveting mechanism, wherein the pressing distance between the pressing plate and the base can be intuitively judged and controlled through the interaction of the first supporting rod, the second supporting rod and the guide rod, so that the wire harness connection stability is good, the wire harness is not easy to loose and break, and the use effect is improved.
In order to solve the technical problems, the utility model provides the following technical scheme:
the novel energy wire harness riveting mechanism comprises a base and a pressing rod correspondingly arranged right above the base, wherein the upper end face of the base is connected with a first riveting piece, and one end of the pressing rod, facing the base, is connected with a second riveting piece correspondingly matched with the first riveting piece through a pressing plate;
the pressure limiting assembly comprises a first supporting rod connected with the lower end face of the pressure plate, which faces the base, and a second supporting rod connected with the upper end face of the base, which faces the pressure plate, and the first supporting rod corresponds to the second supporting rod;
the support rod I and the support rod II are connected between the bottoms of the support rod I and the support rod II facing the base, two ends of the support rod I and the support rod II are respectively in butt joint with the support rod I and the support rod II, one end of the support rod I, which is close to the support rod I, and one end of the support rod II, which is close to the support rod II, are in sliding connection with the support rod II, and one end of the support rod II, which is close to the support rod II, is in sliding connection with the support rod II.
Furthermore, the base is internally provided with a guide cylinder I and a guide cylinder II which are used for the axial penetration of the support rod I and the support rod II respectively and correspond to the extension direction of the support rod I and the support rod II, the base is internally provided with a guide cylinder III which is used for the radial displacement of the guide rod, one end of the guide cylinder III, which is close to the guide cylinder I, is communicated with the guide cylinder, and one end of the guide cylinder III, which is close to the guide cylinder II, is communicated with the guide cylinder II.
Furthermore, the end parts of the first propping rod and the end parts of the guide rod, which are close to each other, are both chamfer surfaces and are in relative sliding butt joint through the chamfer surfaces, and the end parts of the second propping rod and the end parts of the guide rod, which are close to each other, are both chamfer surfaces and are in relative sliding butt joint through the chamfer surfaces;
the top of the first supporting rod is fixedly connected with the lower end face of the pressing plate, the bottom end with the chamfer penetrates into the first guide cylinder to be correspondingly abutted against the guide rod, the top end, close to the pressing plate, of the first supporting rod is further sleeved with the first spring, one end of the first spring is fixedly connected with the inner side of the top end of the first guide cylinder, the other end of the first spring is fixedly connected with the first supporting rod, the two top ends of the second supporting rod are correspondingly arranged on the lower end face of the pressing plate, and the bottom end with the chamfer penetrates into the second guide cylinder to be correspondingly abutted against the guide rod.
Still further, the up end of base is located through the guide holder is fixed to first riveting piece, still be connected with the locating plate that corresponds with first riveting piece on the guide holder, the guide holder up end is equipped with along the radial recess that extends of guide holder, first riveting piece is fixed in guide holder one end, the locating plate passes through lug and recess slip adaptation towards the bottom of guide holder.
Still further, one side of first riveting piece towards the locating plate is equipped with the riveting groove that forms to the inside sunken of first riveting piece, the riveting groove corresponds with the second riveting piece, one side of locating plate towards first riveting piece is equipped with inwards sunken and forms and the constant head tank that corresponds with the riveting groove, be connected with the backup pad that vertical positioning groove set up in the constant head tank, set up at least two guide holes that run through the backup pad setting in the backup pad.
Specifically, a guide hole penetrates the observation line, and a guide hole penetrates the pencil, and the locating plate is to first riveting piece displacement for in the connecting hole of connecting piece in the pencil inserts the riveting groove, another observation line then can be used for observing the degree of depth of inserting of pencil, guarantees the degree of depth of inserting of pencil and connecting piece, makes pencil and connecting piece fully connect, reaches the yields that promotes car pencil.
Still further, the locating plate slides along the guide holder through lug and recess under the drive of direction subassembly, direction subassembly includes lead plate and lead screw, lead plate one end and one side tip fixed connection of locating plate, the lead plate is kept away from the other end of locating plate and is passed through the nut and connect the lead screw, the lead screw corresponds the guide holder bottom setting.
Specifically, the rotation of the screw drives the lead plate to linearly displace on the screw through the screw nut, so as to provide driving force for the displacement of the positioning plate on the lead seat.
Still further, still be connected with the guide bar between the both ends that first riveting piece and locating plate correspond, the one end and the first riveting piece fixed connection of guide bar, the other end of guide arm passes the locating plate and the relative guide arm movable displacement of locating plate, the outside cover of guide bar between first riveting piece and the locating plate is equipped with the spring two, spring two one end and first riveting piece fixed connection, spring two other end and locating plate fixed connection.
Specifically, the guide rod avoids the displacement of the locating plate towards the first riveting piece to deviate, and the accuracy of inserting the wire harness and the connecting piece is guaranteed.
The technical scheme of the utility model has the following beneficial technical effects:
1. according to the novel energy wire harness riveting mechanism, the pressing distance between the pressing plate and the base is controlled through interaction of the first supporting rod, the second supporting rod and the guide rod, the pressing position of the pressing plate can be intuitively judged and controlled, the wire harness connection stability is good, loosening and breaking are difficult, and the using effect is improved.
2. According to the novel energy wire harness riveting mechanism, one guide hole penetrates into the observation line, one guide hole penetrates into the wire harness, the positioning plate moves towards the first riveting piece, the wire harness is inserted into the connecting hole of the connecting piece in the riveting groove, the other observation line can be used for observing the insertion depth of the wire harness, the insertion depth of the wire harness and the connecting piece is guaranteed, the wire harness and the connecting piece are fully connected, the yield of the automobile wire harness is improved, the fact that the length of the wire harness extending out of the connecting pipe does not reach standards or even the situation that the wire harness is missed is avoided, the quality of a product is guaranteed, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a new energy harness riveting mechanism of the present utility model;
FIG. 2 is a schematic view of a pressure limiting assembly of the new energy harness riveting mechanism of the present utility model;
FIG. 3 is a schematic diagram showing the working state of a pressure limiting assembly of the new energy harness riveting mechanism;
FIG. 4 is a schematic diagram showing the connection of a positioning plate and a first riveting member of the new energy harness riveting mechanism;
fig. 5 is a schematic view of a guide assembly of the riveting mechanism for a new energy harness of the present utility model.
The reference numerals in the drawings are as follows: 1. a lifting device; 2. a base; 3. a compression bar; 4. a pressing plate; 5. a second rivet; 6. a first supporting rod; 61. a guide cylinder I; 62. a first spring; 7. a second supporting rod; 71. a guide cylinder II; 8. a guide rod; 81. a guide cylinder III; 9. a first rivet; 91. riveting grooves; 10. a guide seat; 101. a groove; 102. a bump; 11. a positioning plate; 111. a positioning groove; 112. a bump; 12. a guide rod; 121. a second spring; 13. a support plate; 131. a guide hole; 14. a screw rod; 15. and a lead plate.
Detailed Description
The embodiment is a new energy harness riveting mechanism, as shown in fig. 1, including the impact lifting device that is arranged in the riveting among the prior art, the base 2 up end is connected with first riveting piece 9, the depression bar 3 is connected with the second riveting piece 5 that corresponds with first riveting piece 9 adaptation through clamp plate 4 towards the one end of base 2, when using, peg graft the end of pencil inside the jack of connecting piece, lifting device descends and makes second riveting piece 5 pressfitting on first riveting piece 9, exerts strong high pressure to the junction of pencil and connecting piece, fixes the pressfitting together pencil and connecting piece.
Referring to fig. 2 and 3, a pressure limiting assembly is further connected between the pressing plate 4 and the base 2 to control the pressing depth of the first riveting piece and the second riveting piece, the pressure limiting assembly comprises a first supporting rod 6 connected with the lower end face of the pressing plate 4 facing the base 2 and a second supporting rod 7 connected with the upper end face of the base 2 facing the pressing plate 4, the first supporting rod 6 and the second supporting rod 7 correspond in parallel, a guide rod 8 with two ends respectively abutting against the first supporting rod 6 and the second supporting rod 7 is connected between the bottoms of the first supporting rod 6 and the second supporting rod 7 facing the base 2, one ends of the first supporting rod 6 and one ends of the guide rod 8 close to each other are in sliding connection, one ends of the second supporting rod 7 and one ends of the guide rod 8 close to each other are in sliding connection, a guide cylinder 61 and a guide cylinder 71 for the first supporting rod 6 and the second supporting rod 7 to axially penetrate into the base 2 are respectively arranged in the extending directions, a guide cylinder 81 for the radial displacement of the guide rod 8 is further arranged in the base 2, one end of the guide cylinder 61 close to the guide cylinder 61 is communicated with one end 71; the end parts of one end, close to each other, of the first supporting rod 6 and the guide rod 8 are in chamfer and are in sliding butt joint relative to each other through the chamfer, the end parts of one end, close to each other, of the second supporting rod 7 and the guide rod 8 are in chamfer and are in sliding butt joint relative to each other through the chamfer, the top end of the first supporting rod 6 is fixedly connected with the lower end face of the pressing plate 4, the bottom end, provided with the chamfer, of the first supporting rod 6 penetrates into the first guide cylinder 61 and is correspondingly in butt joint with the guide rod 8, the top end, close to the pressing plate 4, of the first supporting rod 6 is further sleeved with a first spring 62, one end of the first spring 62 is fixedly connected with the inner side of the top end of the first guide cylinder 61, the other end of the first spring 62 is fixedly connected with the first supporting rod 6, the top end, provided with the chamfer, of the second supporting rod 7 penetrates into the second guide cylinder 71 and is correspondingly in butt joint with the guide rod 8.
The lifting device drives the pressing rod to press downwards, the pressing plate drives the second riveting piece to approach the first riveting piece, in the descending process of the second riveting piece, the pressing plate drives the first abutting rod at the lower end of the pressing plate to move downwards in the first guide cylinder, the first abutting rod and the guide rod are extruded by the inclined surface of the guide rod in the descending process, the first abutting rod and the guide rod displace along the set direction under the guiding and limiting action of the first guide cylinder and the third guide cylinder, the guide rod displaces in the third guide cylinder towards the direction close to the second abutting rod, the same extrusion occurs to the inclined surface of the guide rod and the second abutting rod, the second abutting rod moves upwards in the opposite direction until the second abutting rod abuts against the lower end face of the pressing plate, the pressing distance between the pressing plate and the base is locked, the riveting depth is controlled, the first abutting rod and the second abutting rod can be flexibly set through the length, the balancing weight can be arranged in the practical use process, the second abutting rod top can be provided with the balancing weight in the non-extrusion process, the second abutting rod can also be provided with a through groove for the second abutting rod to pass through the second abutting rod in the direction, the pressing plate can be provided with the passing through the second abutting rod in the direction, the passing through direction is also can be provided with the pressing rod, the passing through the pressing rod is stable, the passing depth can be judged, the high-down wire harness and the wire harness is connected with the wire harness is connected to a wire harness and the wire harness is in a loose, the wire harness is in a loose position, and a wire harness is in a wire harness, and a wire harness is in a and a wire harness and a wire harness.
Referring to fig. 4 and 5, the first riveting piece 9 is fixedly disposed on the upper end face of the base 2 through the guide seat 10, a positioning plate 11 corresponding to the first riveting piece 9 is further connected to the guide seat 10, a groove 101 extending radially along the guide seat 10 is formed in the upper end face of the guide seat 10, the first riveting piece 9 is fixed to one end of the guide seat 10, the positioning plate 11 is slidably matched with the groove 101 through a bump 112 toward the bottom of the guide seat 10, a riveting groove 91 formed by recessing toward the inside of the first riveting piece 9 is formed in one side of the first riveting piece 9, the riveting groove 91 corresponds to the second riveting piece 5, a positioning groove 111 formed by recessing toward the inside of the first riveting piece 9 is formed in one side of the positioning plate 11 and corresponding to the riveting groove 91, a supporting plate 13 arranged in the vertical positioning groove 111 is connected in the positioning groove 111, at least two through supporting plates 13 are arranged on the supporting plate 13, one through the two through holes are used for being inserted into an interface of a connecting piece, and the other through hole is used for being inserted into a wire harness, and the other through hole is used for being inserted into an observation wire harness.
The locating plate 11 slides along the guide holder 10 through the lug 112 and the groove 101 under the drive of the guide assembly, the guide assembly includes the lead plate 15 and the lead screw 14, one end of the lead plate 15 is fixedly connected with one side end part of the locating plate 11, the lead plate 15 is far away from the other end of the locating plate 11 and is connected with the lead screw 14 through the nut, the lead screw 14 is arranged corresponding to the bottom of the guide holder 10, a guide rod 12 is further connected between the two corresponding end parts of the first riveting piece 9 and the locating plate 11, one end of the guide rod 12 is fixedly connected with the first riveting piece 9, the other end of the guide rod 12 passes through the locating plate 11 and moves relative to the guide rod 12, a spring two 121 is sleeved outside the guide rod 12 between the first riveting piece 9 and the locating plate 11, one end of the spring two 121 is fixedly connected with the first riveting piece 9, the other end of the spring is fixedly connected with the locating plate 11, the guide rod avoids the locating plate from shifting towards the displacement of the first riveting piece, and the accuracy of the insertion of the connecting piece is guaranteed.
The rotation of lead screw drives the lead plate to produce linear displacement, drive the locating plate of being connected with it to being close to the direction displacement of first riveting piece, two guide holes in the backup pad that is located the constant head tank insert pencil and observation pencil respectively, make the pencil insert to the connecting piece that is located the riveting inslot, observe pencil and pencil in another guide hole flush the progress, can establish photoelectric sensor on first riveting piece, send out the arrival signal when observing the pencil and arrive the assigned position, suggestion pencil and connecting piece have been inserted in place, prevent that the length that the pencil stretches out the connecting pipe from not reaching standard from even the condition that leaks the pencil to appear, guarantee the quality of product, improve production efficiency.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.
Claims (7)
1. The novel energy wire harness riveting mechanism is characterized by comprising a base (1) and a pressing rod (3) correspondingly arranged right above the base (1), wherein the upper end face of the base (1) is connected with a first riveting piece (9), and one end, facing the base (1), of the pressing rod (3) is connected with a second riveting piece (5) correspondingly matched with the first riveting piece (9) through a pressing plate (4);
the pressure limiting assembly is further connected between the pressure plate (4) and the base (1), and comprises a first supporting rod (6) connected with the lower end face of the pressure plate (4) facing the base (1) and a second supporting rod (7) connected with the upper end face of the base (1) facing the pressure plate (4), wherein the first supporting rod (6) and the second supporting rod (7) are in parallel correspondence;
the two ends of the first supporting rod (6) and the second supporting rod (7) are respectively connected with a guide rod (8) which is in butt joint with the first supporting rod (6) and the second supporting rod (7) towards the bottom of the base (1), one end of the first supporting rod (6) and one end of the guide rod (8) which are close to each other are in sliding connection, and one end of the second supporting rod (7) and one end of the guide rod (8) which are close to each other are in sliding connection.
2. The new energy harness riveting mechanism according to claim 1, wherein a first guide cylinder (61) and a second guide cylinder (71) for axially penetrating the first support rod (6) and the second support rod (7) are respectively arranged in the base (1) and correspond to the first support rod (6) and the second support rod (7), a third guide cylinder (81) for radially displacing the guide rod (8) is further arranged in the base (1), one end, close to the first guide cylinder (61), of the third guide cylinder (81) is communicated with the first guide cylinder (61) and corresponds to the first guide cylinder, and one end, close to the second guide cylinder (71), of the third guide cylinder (81) is communicated with the second guide cylinder (71) and corresponds to the second guide cylinder.
3. The riveting mechanism of the new energy wire harness according to claim 2, wherein the end parts of the first abutting rod (6) and the guide rod (8) which are close to each other are chamfer surfaces and are in sliding abutting connection with each other through the chamfer surfaces, and the end parts of the second abutting rod (7) and the guide rod (8) which are close to each other are chamfer surfaces and are in sliding abutting connection with each other through the chamfer surfaces;
the top of the first supporting rod (6) is fixedly connected with the lower end face of the pressing plate (4), the bottom of the first supporting rod (6) with a bevel surface penetrates into the first guide cylinder (61) to be correspondingly abutted against the guide rod (8), the top of the first supporting rod (6) close to the pressing plate (4) is further sleeved with a first spring (62), one end of the first spring (62) is fixedly connected with the inner side of the top of the first guide cylinder (61), the other end of the first spring (62) is fixedly connected with the first supporting rod (6), the top of the second supporting rod (7) is correspondingly arranged on the lower end face of the pressing plate (4), and the bottom of the second supporting rod (7) with a bevel surface penetrates into the second guide cylinder (71) to be correspondingly abutted against the guide rod (8).
4. The new energy harness riveting mechanism according to claim 1, wherein the first riveting piece (9) is fixedly arranged on the upper end face of the base (1) through a guide seat (10), a positioning plate (11) corresponding to the first riveting piece (9) is further connected to the guide seat (10), a groove (101) extending along the radial direction of the guide seat (10) is formed in the upper end face of the guide seat (10), the first riveting piece (9) is fixed to one end of the guide seat (10), and the positioning plate (11) is matched with the groove (101) in a sliding mode through a protruding block (112) towards the bottom of the guide seat (10).
5. The new energy harness riveting mechanism according to claim 4, wherein a riveting groove (91) formed by recessing towards the inside of the first riveting piece (9) is formed in one side of the first riveting piece (9) towards the positioning plate (11), the riveting groove (91) corresponds to the second riveting piece (5), a positioning groove (111) formed by recessing inwards and corresponding to the riveting groove (91) is formed in one side of the positioning plate (11) towards the first riveting piece (9), a supporting plate (13) arranged by vertical positioning grooves (111) is connected in the positioning groove (111), and at least two guide holes (131) penetrating through the supporting plate (13) are formed in the supporting plate (13).
6. The new energy harness riveting mechanism according to claim 5, wherein the positioning plate (11) slides along the guide seat (10) through the protruding block (112) and the groove (101) under the driving of the guide assembly, the guide assembly comprises a lead plate (15) and a screw rod (16), one end of the lead plate (15) is fixedly connected with one side end part of the positioning plate (11), the other end of the lead plate (15) far away from the positioning plate (11) is connected with the screw rod (16) through a nut, and the screw rod (16) is arranged corresponding to the bottom of the guide seat (10).
7. The new energy harness riveting mechanism according to claim 4, wherein a guide rod (12) is further connected between two corresponding end parts of the first riveting piece (9) and the positioning plate (11), one end of the guide rod (12) is fixedly connected with the first riveting piece (9), the other end of the guide rod (12) penetrates through the positioning plate (11) and the positioning plate (11) is movably displaced relative to the guide rod (12), a second spring (121) is sleeved outside the guide rod (12) between the first riveting piece (9) and the positioning plate (11), one end of the second spring (121) is fixedly connected with the first riveting piece (9), and the other end of the second spring (121) is fixedly connected with the positioning plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321092981.8U CN220138915U (en) | 2023-05-09 | 2023-05-09 | New forms of energy pencil riveting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321092981.8U CN220138915U (en) | 2023-05-09 | 2023-05-09 | New forms of energy pencil riveting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138915U true CN220138915U (en) | 2023-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321092981.8U Active CN220138915U (en) | 2023-05-09 | 2023-05-09 | New forms of energy pencil riveting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138915U (en) |
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2023
- 2023-05-09 CN CN202321092981.8U patent/CN220138915U/en active Active
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