CN217852357U - Transmission screw and juice extractor - Google Patents
Transmission screw and juice extractor Download PDFInfo
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- CN217852357U CN217852357U CN202221834360.8U CN202221834360U CN217852357U CN 217852357 U CN217852357 U CN 217852357U CN 202221834360 U CN202221834360 U CN 202221834360U CN 217852357 U CN217852357 U CN 217852357U
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- drive screw
- thread
- spring wire
- metal spring
- thread groove
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Abstract
The utility model relates to a drive screw, its characterized in that: comprises a plastic rod with an external thread section; the spiral metal spring wire is spirally clamped in the thread groove of the external thread section; the groove width of the thread groove is matched with the width of the metal spring wire, and the depth of the thread groove is smaller than the thickness of the metal spring wire, so that the metal spring wire screwed and clamped in the thread groove is exposed out of the thread groove to form a transmission thread. The transmission screw thread formed by the metal spring wire is made of metal materials, so that the strength and the wear resistance of the transmission screw thread are improved, the transmission screw thread is not easy to wear after being used for a long time, the screw thread is not easy to slip in the transmission process, and the transmission stability of the transmission screw rod is ensured. The utility model discloses still relate to a juice extractor with aforementioned drive screw.
Description
Technical Field
The utility model relates to a be used for mechanical drive's drive screw, the utility model discloses still relate to a juice extractor with drive screw.
Background
The screw is commonly used for various mechanical transmission systems and also applied to juicers, and the juicers finish juicing by matching and rolling a juicing head with another juicing head through driving the juicing head to move by a rotary built-in screw, for example, chinese patent application publication No. CN201710466647.7 (publication No. CN 107149380A) discloses a juicer which comprises a shell, a juice cup, a cup cover, an upper juicing head, a lower juicing head, a screw and a motor, wherein the upper juicing head is installed in the cup cover, the top end of the screw extends into the juice cup, the lower juicing head is installed at the top end of the screw, the juice cup is installed on the shell, the motor is installed in the shell and moves up and down in the shell, the sleeve is arranged on the periphery of the screw, the nut is movably arranged in the sleeve, but cannot rotate with the sleeve, the screw is in threaded fit with the nut, the upper spring is arranged above the nut, the lower spring is arranged below the nut, the upper spring and the lower spring are both arranged in the sleeve, and the upper spring and the lower spring supports against the nut.
The invention further discloses a juicer as disclosed in the Chinese patent application with the application number of CN201910836379.2 (the publication number of CN 110393424A). The juicer comprises a case, a rotating handle, a juice extracting cover, a juice extracting rod and a juice receiving box, wherein the upper end of the case is provided with the feed hopper, a juice extracting barrel communicated with the feed hopper is arranged inside the case, the outer side of the case is provided with the juice extracting cover communicated with the juice extracting barrel, the juice extracting barrel is internally provided with a pressure head matched with the juice extracting cover, one end of the pressure head is connected with the juice extracting rod, one side of the juice extracting barrel, far away from the juice extracting cover, is provided with a driven gear matched with the juice extracting rod in a threaded manner (the juice extracting rod is a threaded rod), the outer side of the case is provided with the rotating handle, the rotating handle is connected with a rotating shaft, one end of the rotating shaft is connected with the rotating handle, the other end of the rotating shaft is rotatably connected with the side wall of the case, the rotating shaft is sleeved with a driving gear matched with the driven gear, the juice receiving box is arranged in the case, the upper end of the juice receiving box is communicated with the juice extracting cover through a juice pipe, and the lower end of the juice extracting box is provided with the juice extracting pipe.
The screw rod can be divided into two types according to the material, one type is a metal screw rod made of metal material, and the screw rod has the advantages of high strength and good wear resistance, and has the defects of heavy weight and high cost. The other is a plastic screw rod formed by plastic molding, which has the advantages of low cost and light weight and has the defects of low strength and poor wear resistance.
Therefore, the existing screw can be further improved.
Disclosure of Invention
The utility model discloses the first technical problem that will solve provides rational in infrastructure, the threaded portion wearability of screw rod is good, whole light in weight, and with low costs drive screw to above-mentioned prior art current situation.
The utility model provides a technical scheme that above-mentioned first technical problem adopted is: a drive screw characterized by: comprises a plastic rod having an external threaded section; the spiral metal spring wire is spirally clamped in the thread groove of the external thread section; the groove width of the thread groove is matched with the width of the metal spring wire, and the depth of the thread groove is smaller than the thickness of the metal spring wire, so that the metal spring wire screwed and clamped in the thread groove is exposed out of the thread groove to form a transmission thread.
The further improvement comprises a limit joint which is connected to the end part of the plastic rod and limits and restrains the metal spring wire; the metal spring wire is prevented from reversely rotating and separating from the thread groove of the plastic rod, and particularly, the limiting joint is provided with a blocking part which blocks the position of the inlet end of the thread groove, so that the metal spring wire can be effectively prevented from reversely rotating and separating from the thread groove of the plastic rod, and the integral structure is reasonable in design. Of course, other means for restraining the wire may be used, such as a stop pin at the outlet of the thread groove.
In order to facilitate the connection of the limiting joint and the plastic rod, the plastic rod is further provided with a connecting section, the connecting section is located at the outer end of the external thread section, and the limiting joint is fixed on the connecting section. The limit joint can be fixed on the connecting section in a threaded connection mode, or fixed on the connecting section in a bolt mode, or fixed on the connecting section in a bonding and welding mode.
As an improvement, the inner end of the limit joint is provided with a jack, and the connecting section is inserted and fixed in the jack. The connecting section is inserted into the jack at the inner end of the limiting joint and fixed, so that the contact area between the connecting section and the jack is increased, and the limiting joint is more firmly connected with the connecting section.
In order to firmly connect the limiting joint and the connecting section, the limiting joint is preferably fixed on the connecting section in an injection molding mode. Therefore, the limiting joint and the connecting section are integrally formed together, and the limiting joint is firmly fixed on the connecting section and is not easy to relatively separate under the action of large external force.
In a further improvement, a positioning hole is formed in the peripheral wall of the connecting section, and an insertion column inserted into the positioning hole is formed in the inner hole wall of the limiting joint in a state that the limiting joint is fixed on the connecting section in an injection molding mode. The spacing joint and the connecting section are inserted and matched with each other through the positioning hole of the formed inserting column and the connecting section after forming, the spacing joint and the connecting section are tightly combined together, and even under the action of larger torsion, the spacing joint and the connecting section are not easy to separate.
Still further improve, be equipped with the metal dabber in the above-mentioned plastics pole. Because the plastic rod as the main body is made of plastic, the strength is not very high, the structure can enhance the integral strength of the transmission screw rod through the arrangement of the metal core shaft, and the transmission screw rod can not be broken under the action of torsion.
Preferably, the metal core shaft is injection molded with the plastic rod as an insert. The structure is convenient to fix with the plastic rod, and meanwhile, the metal core shaft and the plastic rod are firmly combined.
Preferably, a metal core shaft is arranged in the plastic rod, the metal core shaft can enhance the overall strength of the transmission screw rod, the cross section of the metal core shaft is polygonal, and the metal core shaft is simultaneously inserted into and fixed in the insertion hole of the limiting joint at the end part of the plastic rod. The structure ensures that the metal core shaft and the plastic rod are not easy to relatively rotate under the action of torsion.
Preferably, the cross section of the metal spring wire is rectangular, and the cross section of the thread groove is U-shaped. The structure can ensure that the metal spring wire is in plane contact with the thread groove, so that the metal spring wire is positioned in the thread groove more stably, the cross section of the transmission thread is U-shaped, and the transmission effect is better.
Compared with the prior art, the transmission screw has the advantages that: the main body of the transmission screw rod is a plastic rod, and compared with a metal screw rod, the transmission screw rod has the advantages of light weight, convenience in processing and low cost; in order to make up the defect that the strength of the transmission thread of the plastic screw is low, the transmission screw is also provided with a metal spring wire which is screwed and clamped in a thread groove of the external thread section, and the depth of the thread groove is smaller than the thickness of the metal spring wire, so that the outer surface of the metal spring wire which is screwed and clamped in the thread groove is exposed out of the thread groove to form the transmission thread.
Then the metal spring is axially limited and restricted by combining a limit joint connected to the end part of the plastic rod
The utility model aims to solve the second technical problem that to above-mentioned prior art current situation and provide rational in infrastructure, long service life, wearability shape, the juice extractor of labour saving operation is particularly suitable for squeezing juice to fruits such as oranges, lemons.
The utility model provides a technical scheme that above-mentioned second technical problem adopted does: a juicer includes a housing; the top of the juicing head is transversely provided with an inserted rod for hanging fruits; the juicing cover is connected to the shell and provided with an arc-shaped concave squeezing cavity, and the juicing head can be accommodated in the squeezing cavity; the method is characterized in that: the juicer is characterized by also comprising the transmission screw, the transmission screw is arranged in the shell and can rotate around the axis of the transmission screw and move back and forth, the rear end of the transmission screw is connected with the rocking handle, and the juicing head is connected to the front end of the transmission screw and can rotate and move back and forth along with the transmission screw.
In the normal use state of the juicer, the inserted rod and the transmission screw rod are transversely arranged or horizontally arranged, and the forward and backward movement is the movement in the transverse direction.
Compared with the prior art, this juice extractor's advantage lies in: the power of the juicer is hand-operated, and compared with an electric juicer, the juicer is lower in cost; the arrangement of the inserted rod can better carry fruits on the juicing head, when juicing, the rocking handle drives the transmission screw rod to transmit, under the matching action of the threads, the transmission screw rod moves forwards while rotating, the juicing head is driven to move close to the juicing cover while rotating, the juicing process is rotary extrusion, the juicing is more sufficient, and the juice yield is high; the transmission thread formed by the metal spring wire is made of metal materials, so that the strength and the wear resistance of the transmission thread are improved, the transmission thread is not easy to wear after being used for a long time, the transmission thread is not easy to slip in the transmission process, and the transmission stability of the transmission screw is ensured; a labor-saving lever is formed between the rocking handle and the transmission screw rod, so that the juicing operation is labor-saving; when juicing, the oranges and the lemons are cut in half, then the pulp ends are hung on the inserted rods, the fruit peel faces outwards (towards the juicing cover), the fixation of the fruits is completed, the fruits do not need to be peeled, and the juicing operation is more convenient.
Drawings
FIG. 1 is a perspective view of an embodiment of a drive screw;
FIG. 2 is a cross-sectional view of an embodiment of the drive screw;
FIG. 3 is a first exploded perspective view of an embodiment of the drive screw;
FIG. 4 is a second exploded perspective view of the drive screw embodiment;
FIG. 5 is a schematic perspective view of an embodiment of the juicer (with the lid open);
FIG. 6 is a schematic perspective view of an embodiment of the juicer (with the lid closed);
figure 7 is a perspective view of a driving part in an embodiment of a juicer.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1-4, is a preferred embodiment of the drive screw.
A drive screw comprises
A plastic rod 1 having an external threaded section 11;
the spiral metal spring wire 2 is screwed and clamped in a thread groove 111 of the external thread section 11, the groove width D of the thread groove 111 is matched with the width D of the metal spring wire 2, and the groove width D of the thread groove 111 is slightly larger than the width D of the spring wire 2, so that the metal spring wire 2 can be clamped in the thread groove 111 in a tight fit mode to be the best; the depth H of the thread groove 111 is less than the thickness H of the metal spring wire 2, so that the outer surface of the metal spring wire 2 screwed in the thread groove 111 is exposed out of the thread groove 111 to form a transmission thread S;
the limiting joint 3 is connected to the end of the plastic rod 1 and limits and restrains the metal spring wire 2, specifically, the limiting joint 3 is provided with a blocking part 32 which blocks the inlet end 112 of the thread groove 111, namely, the inlet end 112 at the outermost end of the thread groove 111 is blocked, preferably, the blocking part 32 is also abutted against the outer end face of the metal spring wire 2, so that the metal spring wire 2 can be effectively prevented from reversely rotating and running out from the inlet end 112 at the outermost end of the thread groove 111.
The plastic rod 1 is also provided with a connecting section 12, the connecting section 12 is positioned at the outer end of the external thread section 11, and the limit joint 3 is fixed on the connecting section 12. The inner end of the spacing joint 3 has a receptacle 31, and the connecting section 12 is inserted into and fixed in the receptacle 31. The limiting joint 3 is fixed on the connecting section 12 in a secondary injection molding mode. A positioning hole 121 is formed in the peripheral wall of the connecting section 12, and an insertion column 311 inserted into the positioning hole 121 is formed in the inner hole wall of the limiting joint 3 in the state that the limiting joint 3 is injection-molded on the connecting section 12 for the second time.
A metal core shaft 4 is arranged in the plastic rod 1, and the metal core shaft 4 is simultaneously inserted into and fixed in the insertion hole 31 of the limiting joint 3. The metal mandrel 4 is used as an insert and is injection-molded with the plastic rod 1, namely the metal mandrel 4 is used as an insert and is arranged in a mold, and after injection molding, the plastic rod 1 is directly molded on the periphery of the metal mandrel 4. The cross section of the metal core shaft 4 is polygonal.
The metal spring wire 2 is a rectangular spring, that is, the cross section of the metal wire of the metal spring wire 2 is rectangular, and the groove of the thread groove 111 is U-shaped.
The main body of the transmission screw is a plastic rod 1, and compared with a metal screw, the transmission screw has the advantages of light weight, convenience in processing and low cost; in order to make up the defect of low strength of the transmission thread of the plastic screw, the transmission screw is also provided with the metal spring wire 2 which is screwed and clamped in the thread groove 111 of the external thread section 11, and the depth H of the thread groove 111 is less than the thickness H of the metal spring wire 2, so that the metal spring wire 2 which is screwed and clamped in the thread groove 111 can be exposed out of the thread groove 111 to form a transmission thread S, the transmission thread S is made of metal, the strength and the wear resistance of the transmission thread S are improved, the transmission thread S is not easy to wear after long-time use, the thread is not easy to slip in the transmission process, and the transmission stability of the transmission screw is ensured; the metal spring wire 2 is axially limited and constrained by combining the limiting joint 3 connected to the end part of the plastic rod 1, the groove width D of the thread groove 111 is matched with the width D of the metal spring wire 2, the metal spring wire 2 is prevented from being separated from the thread groove 111 of the plastic rod 1, and the integral structure is reasonable in design.
As shown in fig. 5 to 7, which is a preferred embodiment of the juice extractor.
A juicer comprises
A housing 5;
the fruit juicer comprises a juicing head 6, wherein an inserted rod 61 for hanging fruits is transversely arranged at the top of the juicing head 6;
a juicing cover 7 connected to the machine shell 5, wherein the juicing cover 7 is provided with an arc-shaped concave squeezing cavity 71, and the juicing head 6 can be accommodated in the squeezing cavity 71;
the transmission screw is arranged in the shell 5 and can rotate around the axis of the transmission screw and move back and forth, the transmission thread S of the transmission screw can be in direct thread fit with the shell 5, namely a threaded hole 51 which is directly arranged in the shell 5 and is matched with the transmission thread S, the transmission thread S of the transmission screw can be in thread fit with a clamping piece in the shell 5, if the transmission screw is arranged in the shell 5 and is clamped with the transmission thread S, the rear end of the transmission screw is connected with the rocking handle 8, and the juicing head 6 is connected at the front end of the limiting joint 3 and can rotate along with the limiting joint and move back and forth.
The power of the juicer is hand-operated, and compared with an electric juicer, the juicer is lower in cost; the arrangement of the inserting rod 61 can better carry fruits on the juicing head 6, when juicing is carried out, the transmission screw is driven by the rocking handle 8 to transmit, under the matching effect of the threads, the transmission screw moves forwards while rotating, the juicing head 6 is driven to move close to the juicing cover 7 while rotating, the juicing process is rotary extrusion, the juicing is more sufficient, and the juice yield is high; the transmission thread S formed by the metal spring wire 2 is made of metal materials, so that the strength and the wear resistance of the transmission thread S are improved, the transmission thread S is not easy to wear after being used for a long time, the transmission thread S is not easy to slip in the transmission process, and the transmission stability of the transmission screw is ensured; a labor-saving lever is formed between the rocking handle 8 and the transmission screw rod, and the juicing operation is labor-saving.
When juicing, the oranges and the lemons are cut into half parts, then the pulp ends are hung on the inserted rod 61, the fruit peel faces outwards (towards the juicing cover), the fixation of the fruits is completed, the fruits do not need to be peeled, and the juicing operation is more convenient. After juicing is completed, the juicing cover 7 is opened, the fruit peel carried on the inserted rod 61 is taken out, and juicing is completed.
It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "inside, outside", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. A drive screw characterized by: comprises that
A plastic rod (1) having an externally threaded section (11);
a helical metal spring wire (2) which is screwed into the thread groove (111) of the external thread section (11); the groove width (D) of the thread groove (111) is matched with the width (D) of the metal spring wire (2), and the depth (H) of the thread groove (111) is smaller than the thickness (H) of the metal spring wire (2), so that the metal spring wire (2) which is screwed and clamped in the thread groove (111) is exposed out of the thread groove (111) to form a transmission thread (S).
2. The drive screw of claim 1, wherein: the plastic rod limiting device is characterized by further comprising a limiting joint (3) which is connected to the end of the plastic rod (1) and limits and restrains the metal spring wire (2).
3. The drive screw of claim 2, wherein: the plastic rod (1) is further provided with a connecting section (12), the connecting section (12) is located at the outer end of the external thread section (11), the limiting joint (3) is fixed on the connecting section (12), the inner end of the limiting joint (3) is provided with a jack (31), and the connecting section (12) is inserted into and fixed in the jack (31).
4. The drive screw of claim 3, wherein: the limiting joint (3) is fixed on the connecting section (12) in an injection molding mode.
5. The drive screw of claim 4, wherein: a positioning hole (121) is formed in the peripheral wall of the connecting section (12), and an inserting column (311) inserted into the positioning hole (121) is formed in the inner hole wall of the limiting joint (3) in the state that the limiting joint (3) is fixed on the connecting section (12) in an injection molding mode.
6. The drive screw of claim 1, wherein: a metal mandrel (4) is arranged in the plastic rod (1).
7. The drive screw of claim 6, wherein: the metal core shaft (4) is used as an insert and is injection-molded with the plastic rod (1).
8. The drive screw of claim 1, wherein: the plastic rod is characterized in that a metal mandrel (4) is arranged in the plastic rod (1), the cross section of the metal mandrel (4) is polygonal, and the metal mandrel (4) is simultaneously inserted into and fixed in an insertion hole (31) of a limiting joint (3) at the end part of the plastic rod (1).
9. The drive screw of claim 1, wherein: the cross section of the metal spring wire (2) is rectangular, and the cross section of the thread groove (111) is U-shaped.
10. A juice extractor comprises
A housing (5);
the fruit juicer comprises a juicing head (6), wherein the top of the juicing head (6) is transversely provided with an inserted rod (61) for hanging fruits;
the juicing cover (7) is connected to the machine shell (5), the juicing cover (7) is provided with an arc-shaped concave squeezing cavity (71), and the juicing head (6) can be accommodated in the squeezing cavity (71);
the method is characterized in that: also comprises
A drive screw according to any one of claims 1 to 9, which is arranged in the housing (5) and is rotatable about its own axis and movable back and forth, the rear end of the drive screw being connected to the rocking handle (8), the juicing head (6) being connected to the front end of the drive screw and being rotatable therewith and movable back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221834360.8U CN217852357U (en) | 2022-07-15 | 2022-07-15 | Transmission screw and juice extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221834360.8U CN217852357U (en) | 2022-07-15 | 2022-07-15 | Transmission screw and juice extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217852357U true CN217852357U (en) | 2022-11-22 |
Family
ID=84052732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221834360.8U Active CN217852357U (en) | 2022-07-15 | 2022-07-15 | Transmission screw and juice extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217852357U (en) |
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2022
- 2022-07-15 CN CN202221834360.8U patent/CN217852357U/en active Active
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