CN203868058U - Manual lifting mast - Google Patents
Manual lifting mast Download PDFInfo
- Publication number
- CN203868058U CN203868058U CN201420274931.6U CN201420274931U CN203868058U CN 203868058 U CN203868058 U CN 203868058U CN 201420274931 U CN201420274931 U CN 201420274931U CN 203868058 U CN203868058 U CN 203868058U
- Authority
- CN
- China
- Prior art keywords
- rod
- bodies
- connecting sleeve
- adjacent
- upside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000013022 venting Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a manual lifting mast which comprises a plurality of rod bodies arranged from top to bottom. In every two adjacent rod bodies, the rod body on the upper side is inserted into the rod body on the lower side. The manual lifting mast is characterized in that a connecting sleeve is arranged between every two adjacent rod bodies, wherein the upper end of the connecting sleeve is arranged on the rod body, located on the upper side, in every two adjacent rod bodies in a sleeved mode, the lower end of the connecting sleeve is inserted into the rod body, located on the lower side, in every two adjacent rod bodies, the lower end of the connecting sleeve is fixedly connected with the rod body on the lower side, a transmission pin is arranged at the lower end of the rod body, located on the upper side, in every two adjacent rod bodies, and a locating groove for preventing the transmission pin from downwards moving and a guiding groove for enabling the transmission pin to slide into the locating groove are formed in the connecting sleeve. By means of the technical scheme, the manual lifting mast is provided; after being extended out, the rod bodies on the upper sides can be well located; the manual lifting mast is convenient to operate and firm in location.
Description
Technical field
The utility model relates to mast field, particularly a kind of hand-operated lifting mast.
Background technique
Existing elevation mast, generally comprise the some pole bodies that arrange from top to bottom, the body of rod that is positioned at upside in described adjacent two bodies of rod is plugged in the body of rod of downside, the body of rod sidewall that is positioned at downside in adjacent two bodies of rod is provided with holding down bolt, by the body of rod of upside from the downside body of rod stretches out, holding down bolt is conflicted the upside body of rod is positioned with the outer wall that is positioned at the upside body of rod of the downside body of rod, but, the elevation mast of this structure, inconvenient operation, it is not firm to locate.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, the utility model provides a kind of hand-operated lifting mast, it can position the upside body of rod well after the upside body of rod stretches out, and easy to operate, it is firm to locate.
The technical solution of the utility model: a kind of hand-operated lifting mast, include the some pole bodies that arrange from top to bottom, the body of rod that is positioned at upside in described adjacent two bodies of rod is plugged in the body of rod of downside, it is characterized in that: between adjacent two bodies of rod, be provided with connecting sleeve, connecting sleeve upper end is set in adjacent two bodies of rod and is positioned on the body of rod of upside, connecting sleeve lower end is plugged in and in adjacent two bodies of rod, is positioned at the body of rod of downside and is fixedly connected with the downside body of rod, the body of rod lower end that is positioned at upside in adjacent two bodies of rod is provided with driving pin, described connecting sleeve is provided with for preventing the locating slot that driving pin moves downward and slipping into the steering channel in locating slot for confession driving pin.
Adopt technique scheme, after the upside body of rod stretches out, rotate the upside body of rod, the driving pin of upside body of rod lower end is slipped in locating slot, thereby prevent that by locating slot the upside body of rod from gliding, therefore, the hand-operated lifting mast of this structure, it can position the upside body of rod well after the upside body of rod stretches out, easy to operate, it is firm to locate.
Further setting of the present utility model: described connecting sleeve upper end has extended upward some elastic tongue pieces, is also arranged with setting sleeve on described connecting sleeve, described elastic tongue piece is pressed in adjacent two bodies of rod and is positioned on the body of rod of upside through setting sleeve.
Adopt above-mentioned further setting, by the setting sleeve arranging, elastic tongue piece is pressed in adjacent two bodies of rod and is positioned on the body of rod of upside, can prevent from well like this that the upside body of rod from producing to rock, thereby make its location more stable.
Further setting more of the present utility model: the body of rod lower end that is positioned at upside in adjacent two bodies of rod is provided with piston, in described piston, be provided with the first venting channels, second venting channels of conducting, described the first venting channels, the second venting channels coaxially arrange, in the second venting channels, be provided with steel ball, between the first described venting channels, the second venting channels, be provided with taper connection passage, described piston lower end is extended with the projection that prevents that steel ball from coming off in the second venting channels.
Adopt above-mentioned further setting again, when the upside body of rod declines, because the gas in the downside body of rod is compressed, make steel ball increase, thereby dwindled the bore of tapered channel, the upside body of rod is declined slowly, and then can protect well the upside body of rod.
Further setting more of the present utility model: described connecting sleeve sidewall is provided with the first outside thread, the second outside thread, the first outside thread on described setting sleeve and connecting sleeve forms screw-thread fit, and the second outside thread on described connecting sleeve coordinates with the body of rod inner thread that is positioned at downside in adjacent two bodies of rod.
Adopt above-mentioned further setting again: by the first outside thread, the second outside thread, fix with setting sleeve, the downside body of rod respectively, easy to connect, simple in structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the middle body of rod and connecting structure of connection cover schematic diagram in the utility model specific embodiment;
Fig. 3 is piston structure sectional view in the utility model specific embodiment.
Embodiment
As Figure 1-3, a kind of hand-operated lifting mast, include the three pair rod body 11 arranging from top to bottom, 12, 13, the body of rod that is positioned at upside in described adjacent two bodies of rod is plugged in the body of rod of downside, between adjacent two bodies of rod, be provided with connecting sleeve 2, connecting sleeve 2 upper ends are set in adjacent two bodies of rod and are positioned on the body of rod of upside, connecting sleeve 2 lower ends are plugged in and in adjacent two bodies of rod, are positioned at the body of rod of downside and are fixedly connected with the downside body of rod, the body of rod lower end that is positioned at upside in adjacent two bodies of rod is provided with driving pin 3, described connecting sleeve 2 is provided with for preventing the locating slot 21 that driving pin 3 moves downward and slipping into the steering channel 22 in locating slot 21 for confession driving pin 3.After the upside body of rod stretches out, rotate the upside body of rod, the driving pin 3 of upside body of rod lower end is slipped in locating slot 21, thereby by locating slot 21, prevent that the upside body of rod from gliding, therefore, the hand-operated lifting mast of this structure, it is after the upside body of rod stretches out, can to the upside body of rod, position well, easy to operate, it is firm to locate.
In the utility model specific embodiment, described connecting sleeve 2 upper ends have extended upward some elastic tongue pieces 23, on described connecting sleeve 2, are also arranged with setting sleeve 6, and described elastic tongue piece 23 is pressed in adjacent two bodies of rod and is positioned on the body of rod of upside through setting sleeve 6.By the setting sleeve 6 arranging, elastic tongue piece 23 is pressed in adjacent two bodies of rod and is positioned on the body of rod of upside, can prevent from well like this that the upside body of rod from producing to rock, thereby make its location more stable.
In the utility model specific embodiment, the body of rod lower end that is positioned at upside in adjacent two bodies of rod is provided with piston 4, in described piston 4, be provided with the first venting channels 41, second venting channels 42 of conducting, described the first venting channels 41, the second venting channels 42 coaxially arrange, in the second venting channels 42, be provided with steel ball 5, between the first described venting channels 41, the second venting channels 42, be provided with taper connection passage 43, described piston 4 lower ends are extended with the projection 44 that prevents that steel ball 5 from coming off in the second venting channels 42.When the upside body of rod declines, because the gas in the downside body of rod is compressed, make steel ball 5 increase, thereby dwindled the bore of tapered channel 43, the upside body of rod is declined slowly, and then can protect well the upside body of rod.
In the utility model specific embodiment, described connecting sleeve 2 sidewalls are provided with the first outside thread 24, the second outside thread 25, described setting sleeve 6 forms screw-thread fit with the first outside thread 24 on connecting sleeve 2, and the second outside thread 25 on described connecting sleeve 2 coordinates with the body of rod inner thread that is positioned at downside in adjacent two bodies of rod.By the first outside thread 24, the second outside thread 25, fix with setting sleeve 6, the downside body of rod respectively, easy to connect, simple in structure.
Claims (4)
1. a hand-operated lifting mast, include the some pole bodies that arrange from top to bottom, the body of rod that is positioned at upside in described adjacent two bodies of rod is plugged in the body of rod of downside, it is characterized in that: between adjacent two bodies of rod, be provided with connecting sleeve, connecting sleeve upper end is set in adjacent two bodies of rod and is positioned on the body of rod of upside, connecting sleeve lower end is plugged in and in adjacent two bodies of rod, is positioned at the body of rod of downside and is fixedly connected with the downside body of rod, the body of rod lower end that is positioned at upside in adjacent two bodies of rod is provided with driving pin, described connecting sleeve is provided with for preventing the locating slot that driving pin moves downward and slipping into the steering channel in locating slot for confession driving pin.
2. hand-operated lifting mast according to claim 1, it is characterized in that: described connecting sleeve upper end has extended upward some elastic tongue pieces, on described connecting sleeve, be also arranged with setting sleeve, described elastic tongue piece is pressed in adjacent two bodies of rod and is positioned on the body of rod of upside through setting sleeve.
3. hand-operated lifting mast according to claim 1 and 2, it is characterized in that: the body of rod lower end that is positioned at upside in adjacent two bodies of rod is provided with piston, in described piston, be provided with the first venting channels, second venting channels of conducting, described the first venting channels, the second venting channels coaxially arrange, in the second venting channels, be provided with steel ball, between the first described venting channels, the second venting channels, be provided with taper connection passage, described piston lower end is extended with the projection that prevents that steel ball from coming off in the second venting channels.
4. hand-operated lifting mast according to claim 1 and 2, it is characterized in that: described connecting sleeve sidewall is provided with the first outside thread, the second outside thread, the first outside thread on described setting sleeve and connecting sleeve forms screw-thread fit, and the second outside thread on described connecting sleeve coordinates with the body of rod inner thread that is positioned at downside in adjacent two bodies of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274931.6U CN203868058U (en) | 2014-05-26 | 2014-05-26 | Manual lifting mast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274931.6U CN203868058U (en) | 2014-05-26 | 2014-05-26 | Manual lifting mast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868058U true CN203868058U (en) | 2014-10-08 |
Family
ID=51649017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274931.6U Expired - Lifetime CN203868058U (en) | 2014-05-26 | 2014-05-26 | Manual lifting mast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876921A (en) * | 2022-03-30 | 2022-08-09 | 乐歌人体工学科技股份有限公司 | Transmission rod assembly and lifting table thereof |
-
2014
- 2014-05-26 CN CN201420274931.6U patent/CN203868058U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876921A (en) * | 2022-03-30 | 2022-08-09 | 乐歌人体工学科技股份有限公司 | Transmission rod assembly and lifting table thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |