CN215208216U - Pump body structure for jack - Google Patents
Pump body structure for jack Download PDFInfo
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- CN215208216U CN215208216U CN202120799603.8U CN202120799603U CN215208216U CN 215208216 U CN215208216 U CN 215208216U CN 202120799603 U CN202120799603 U CN 202120799603U CN 215208216 U CN215208216 U CN 215208216U
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- pump
- pump core
- pump body
- sheath
- core
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Abstract
The utility model discloses a pump body structure for jack, including pump core, pump core sheath, the pump body and spring, the top of pump core sheath is provided with the guiding hole, the lower extreme of pump core passes through the guiding hole and inserts the cylindrical pump intracavity of pump core sheath and pump body inside, leave the clearance between the pump core sheath and the pump body, the spring is around the outer wall of the dress at the pump body and extend to the inside of pump core sheath, the material of pump core adopts non-metallic material. In this way, the utility model discloses when the pump core was made up-and-down motion, drive the pump core sheath and make up-and-down motion, improve the harmony between its relevant structure effectively, have simple structure, processing convenience, maneuverability is strong, advantages such as safe and reliable, because the pump core preferentially adopts the nylon material preparation, the galling phenomenon can not take place during its surface and the contact of the pump body, has improved its life, simultaneously because the existence of pump core sheath, can more effectually block that gravel and sand iron bits are stained with and lead to the pump body galling on the pump core.
Description
Technical Field
The utility model relates to a technical field of pump especially relates to a pump body structure for jack.
Background
The jack is a common lifting tool for automobile repair, is widely applied to automobile lifting fields in various occasions such as indoor occasions, outdoor occasions and the like, and the pump body structure is one of important parts when the jack is used.
In the prior art, the pump core and the pump body of a common structure have high matching precision requirement and large processing difficulty. The pump core and the pump body are both made of 45 steel and reciprocate in time, so that the problem of galling exists in a certain proportion, the surface of the pump core is plated with hard chromium to prevent galling, the cost is high, and the effect is not good.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a pump body structure for jack, has simple structure, processing convenience, maneuverability is strong, advantages such as safe and reliable can not produce the pump core pump body and draw mao phenomenon, has improved its life.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a pump body structure for jack, includes pump core, pump core sheath, the pump body and spring, set up the cylindrical pump chamber of holding pump core in the pump core sheath and the pump body, the top of pump core sheath is provided with the guiding hole, the guiding hole is linked together with cylindrical pump chamber, the lower extreme of pump core passes through the guiding hole and inserts the cylindrical pump intracavity of pump core sheath and pump body inside, leave the clearance between the pump core sheath and the pump body, the spring is around the dress in the outer wall of the pump body and extend to the inside of pump core sheath, the material of pump core adopts non-metallic material.
In a preferred embodiment of the present invention, the pump core sheath is made of common steel; the pump body is made of 45 steel.
In a preferred embodiment of the present invention, the pump core is made of PA66, PA6 or nylon 1010 material.
In a preferred embodiment of the present invention, the pump core includes a pump core rod and a position-limiting platform, and the position-limiting platform is horizontally and fixedly disposed at the upper end of the pump core rod.
In a preferred embodiment of the present invention, an annular groove is formed on an outer wall of the lower portion of the pump core rod.
In a preferred embodiment of the present invention, a sealing ring is disposed in the annular groove.
In a preferred embodiment of the present invention, the limiting platform is a circular structure, and the diameter of the limiting platform is larger than that of the guiding hole.
In a preferred embodiment of the present invention, the pump core rod has a cylindrical structure, and the diameter of the cylindrical structure is smaller than that of the guide hole.
In a preferred embodiment of the present invention, the diameter of the pump core rod is 0.2-0.3mm smaller than the diameter of the cylindrical pump cavity.
The utility model has the advantages that: the utility model provides a pump body structure for jack, when the pump core was made up-and-down motion, it made up-and-down motion to drive pump core sheath, improved the harmony between its relevant structure effectively, simple structure has, simple to operate, maneuverability is strong, advantages such as safe and reliable, because the pump core adopts the non-metallic material preparation, the galling phenomenon can not take place during its surface and the contact of the pump body, improved its life, because the existence of pump core sheath, can effectually block that gravel and sand iron bits are stained with and lead to the pump body galling on the pump core simultaneously.
Drawings
Fig. 1 is a sectional view of a preferred embodiment of the pump body structure for a jack according to the present invention;
FIG. 2 is a schematic structural view of the pump cartridge of FIG. 1;
the parts in the drawings are numbered as follows: 1. pump core, 2, pump core sheath, 3, the pump body, 4, spring, 5, cylindrical pump chamber, 6, guiding hole, 11, pump core pole, 12, spacing platform, 13, annular groove, 14, sealing washer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1-2, an embodiment of the present invention includes:
the utility model provides a pump body structure for jack, includes pump core 1, pump core sheath 2, the pump body 3 and spring 4, set up the cylindrical pump chamber 5 of holding pump core 1 in the pump core sheath 2 and the pump body 3, the top of pump core sheath 2 is provided with guiding hole 6, guiding hole 6 is linked together with cylindrical pump chamber 5, the lower extreme of pump core 1 passes through in guiding hole 6 inserts pump core sheath 2 and the inside cylindrical pump chamber 5 of the pump body 3, leave the clearance between the pump core sheath 2 and the pump body 3, spring 4 is around adorning the outer wall at the pump body 3 and extending to the inside of pump core sheath 2, the material of pump core 1 adopts non-metallic material.
In the above, the pump core sheath 2 is made of common steel; the pump body 3 is made of 45 steel. In this embodiment, the pump core 1 is preferably made of PA66, PA6 or nylon 1010 (but not limited thereto).
Because the pump core 1 is made of nylon (PA6/PA 66/nylon 1010), galling phenomenon can not occur when the surface of the pump core 1 contacts with the pump core jacket 2 and the pump body 3.
A gap is reserved between the pump core sheath 2 and the pump body 3, when the pump core 1 reciprocates up and down, the pump core sheath 2 is driven to reciprocate up and down, and the pump body 3 is fixedly connected, so that the coordination between related structural components is effectively improved. In the embodiment, the gap distance between the pump core sheath 2 and the pump body 3 is 2-8 mm.
The spring 4 winds the outer wall of the pump body 3 and extends to the inside of the pump core sheath 2, and winds the outer wall of the pump core 1 inside the pump core sheath 2, the spring 4 plays a role in resetting the pump core sheath 2 and the pump core 1, the pump core 1 is stressed to move downwards, the spring 4 is pressed downwards, after the pump core 1 is not stressed, the spring 4 bounces to enable the pump core 1 to reset to move next time, the pump core 1 is made to reciprocate up and down, the pump body 3 is connected by the spring 4 and the pump core sheath 2 is pushed to reciprocate up and down, and the pump core protector is high in operability, safe and reliable.
Further, the pump core 1 comprises a pump core bar 11 and a limiting table 12, and the limiting table 12 is horizontally and fixedly arranged at the upper end of the pump core bar 11. An annular groove 13 is formed in the outer wall of the lower portion of the pump core rod 11, and a sealing ring 14 is arranged in the annular groove 13. The sealing ring 14 has the advantages of high pressure resistance and strong sealing performance, and the sealing ring 14 can ensure that hydraulic oil always exists in the cylindrical pump cavity 5 of the pump body 3 in the process of up-and-down reciprocating motion of the pump core 1.
The limiting table 12 is of a circular structure, the diameter of the limiting table is larger than that of the guide hole 6, when the pump core 1 moves downwards, the limiting function is achieved, and the pump core 1 can conveniently reciprocate up and down. The pump core rod 11 is in a cylindrical structure, the diameter of the pump core rod 11 is smaller than that of the guide hole 6, and the diameter of the pump core rod 11 is 0.2-0.3mm smaller than that of the cylindrical pump cavity 5.
The pump core and the pump body that conventional 45 steel was made are very little to fit the size, because the pump core 1 of nylon material has the phenomenon of expend with heat and contract with cold, so the pump core 1 of nylon preparation and the cooperation size of cylindrical pump chamber 5 need enlarge, for example the diameter of cylindrical pump chamber 5 is 22mm, the diameter of nylon pump core 1 is 21.7-21.8mm, its diameter needs to be less than cylindrical pump chamber 5 a little, otherwise continuous use, the expend with heat and contract with cold of nylon can card dead phenomenon.
The utility model provides a pump body structure for jack is with the distinguishing characteristic of prior art does:
1. a gap is reserved between the pump core sheath and the pump body, the pump core is fixedly connected with the pump core sheath through a spring, when the pump core reciprocates up and down, the pump core sheath is driven to reciprocate up and down together, the pump body is fixed on a component of the jack, and the coordination among related structural components of the pump core is effectively improved when the pump core moves;
2. the spring is wound on the outer wall of the pump body and extends into the pump core sheath, and is wound on the outer wall of the pump core inside the pump core sheath, and the pump core is fixedly connected with the pump core sheath through the spring, so that the pump core is strong in operability, safe and reliable;
3. the pump core is made of a non-metal material, preferably PA66, PA6 or nylon 1010, and the material is soft and does not generate galling when contacting with the pump body;
4. due to the existence of the pump core sheath, the pump body galling caused by the fact that sand and stone scrap iron is stuck to the pump core can be effectively prevented;
5. even if sand enters the pump core and the pump body in the movement process, the sand can be embedded into the nylon pump core due to the characteristic of nylon, and the galling phenomenon cannot occur;
6. the pump core and the pump body have high matching precision and small processing difficulty.
To sum up, the utility model provides a pump body structure for jack, when the pump core was made up-and-down motion, drive the pump core sheath and make up-and-down motion, improved the harmony between its relevant structure effectively, have simple structure, processing convenience, maneuverability are strong, advantages such as safe and reliable because the pump core adopts the nylon material preparation, can not take place to draw the hair phenomenon when its surface and pump body contact, improved its life.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a pump body structure for jack, its characterized in that includes pump core, pump core sheath, the pump body and spring, set up the cylindrical pump chamber of holding pump core in the pump core sheath and the pump body, the top of pump core sheath is provided with the guiding hole, the guiding hole is linked together with cylindrical pump chamber, the lower extreme of pump core passes through the guiding hole and inserts the cylindrical pump intracavity of pump core sheath and pump body inside, leave the clearance between the pump core sheath and the pump body, the spring is around the dress in the outer wall of the pump body and extend to the inside of pump core sheath, the material of pump core adopts non-metallic material.
2. The pump body structure for a jack according to claim 1, wherein the pump core sheath is made of ordinary steel; the pump body is made of 45 steel.
3. The pump body structure for jack as claimed in claim 1, wherein the pump core is made of PA66, PA6 or nylon 1010 material.
4. The pump body structure for a jack according to claim 3, wherein the pump core includes a pump core bar and a limit table, and the limit table is horizontally and fixedly disposed at an upper end of the pump core bar.
5. The pump body structure for a jack according to claim 4, wherein an annular groove is provided on an outer wall of a lower portion of the pump stem.
6. A jack pump body structure, according to claim 5, wherein a seal ring is provided in said annular groove.
7. The pump body structure for a jack according to claim 4, wherein the stopper platform has a circular structure having a diameter larger than that of the guide hole.
8. The pump body structure for a jack according to claim 7, wherein the pumping rod is of a cylindrical structure having a diameter smaller than that of the guide hole.
9. The pump body structure for a jack according to claim 8, wherein the diameter of the pump core rod is smaller than that of the cylindrical pump cavity by 0.2 to 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799603.8U CN215208216U (en) | 2021-04-19 | 2021-04-19 | Pump body structure for jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799603.8U CN215208216U (en) | 2021-04-19 | 2021-04-19 | Pump body structure for jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215208216U true CN215208216U (en) | 2021-12-17 |
Family
ID=79449414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120799603.8U Active CN215208216U (en) | 2021-04-19 | 2021-04-19 | Pump body structure for jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215208216U (en) |
-
2021
- 2021-04-19 CN CN202120799603.8U patent/CN215208216U/en active Active
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