CN205603130U - Telescopic heavy jack - Google Patents
Telescopic heavy jack Download PDFInfo
- Publication number
- CN205603130U CN205603130U CN201620461181.2U CN201620461181U CN205603130U CN 205603130 U CN205603130 U CN 205603130U CN 201620461181 U CN201620461181 U CN 201620461181U CN 205603130 U CN205603130 U CN 205603130U
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- CN
- China
- Prior art keywords
- screw
- jack
- base
- cored
- cylindrical hole
- 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.)
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Abstract
The utility model discloses a telescopic heavy jack is provided with the jack body, and the jack body includes the screw rod construction package that base and multisection screw rod structure are formed, is provided with the cylinder hole at the base, is provided with the internal thread at cylindrical inner hole, be provided with the external screw thread with the internal thread looks adaptation in cylinder hole on the screw rod construction package, screw rod construction package spiro union is at the cylindrical inner hole of base, the screw rod construction package includes two section at least hollow screw, goes up a lesson hollow screw spiro union and in a lesson hollow screw down, just descends most a lesson hollow screw spiro union at cylindrical inner hole, solving the prior art jack and lifting the less weak point of stroke, the telescopic heavy jack who constitutes through adopting the multilayer screw rod pile screw rod construction package that the mode of overlapping is constituteed to cooperate with the base has structure exquisiteness, convenient to carry to can realize that several tonnes of weight lift.
Description
Technical field
This utility model relates to the fields such as crane gear technology, specifically, is a kind of Telescopic heavy jack.
Background technology
Jack is as a kind of small-sized crane gear, and use in flight-line maintenance industry is relatively broad.Different by its structure, mechanical type and fluid pressure type can be divided into.Wherein, mechanical jack uses a kind of rigid cover as equipment, by back and forth pulling spanner, makes top cover bracket or bottom claw lift weight in stroke.Because of its simple in construction, small and exquisite flexibly, be easy to carry, practicality is relatively strong and is favored by people.But it is less to there is also lifting stroke, govern the further genralrlization of jack always.
Utility model content
The purpose of this utility model is to design a kind of Telescopic heavy jack, solve the weak point that prior art jack lifting stroke is less, the Telescopic heavy jack that the screw-rod structure assembly formed by the way of using multi-layer threaded rod nestable matches with base and constitutes, there is delicate structure, easy to carry, and several tonnes of weight liftings can be realized.
This utility model is achieved through the following technical solutions: a kind of Telescopic heavy jack, it is provided with jack body, jack body includes base and the screw-rod structure assembly of multi-section screw structure composition, base is provided with cylindrical hole, female thread it is provided with in cylindrical hole, being provided with the external screw thread suitable with the female thread of cylindrical hole on described screw-rod structure assembly, described screw-rod structure assembly is screwed onto in the cylindrical hole of base.
Further for preferably realizing this utility model, use the following structure that arranges especially: described screw-rod structure assembly includes that at least two joint cored screws, a upper joint cored screw are screwed onto in next joint cored screw, and next joint cored screw is screwed onto in cylindrical hole.
Further for preferably realizing this utility model, use especially the following structure that arranges: described screw-rod structure assembly also includes being screwed onto most goes up the solid screw on the cored screw of a joint, solid screw top is radially arranged the post holes of cross, is provided through swingle in post holes.
Further for preferably realizing this utility model, use the following structure that arranges especially: be provided with top cover at the top of described solid screw, top cover is fixed with solid screw by screw.
Further for preferably realizing this utility model, use the following structure that arranges especially: on described top cover, be provided with groove structure.
Further for preferably realizing this utility model, use the following structure that arranges especially: described female thread is rectangular thread, and the length that arranges of female thread is less than the degree of depth of cylindrical hole.
Further for preferably realizing this utility model, use the following structure that arranges especially: the length that arranges of the internal whorl of described cored screw is also smaller than the length of cored screw, and the internal whorl of the external screw-thread of cored screw and cored screw all uses rectangular thread.
Further for preferably realizing this utility model, use the following structure that arranges especially: be radially arranged alignment pin in the bottom of described base.
Further for preferably realizing this utility model, use especially following arrange structure in: be radially arranged alignment pin in the bottom of described cored screw.
Further for preferably realizing this utility model, use the following structure that arranges especially: the surrounding at described base is provided with floor.
This utility model compared with prior art, has the following advantages and beneficial effect:
This utility model solves the weak point that prior art jack lifting stroke is less, the Telescopic heavy jack that the screw-rod structure assembly formed by the way of using multi-layer threaded rod nestable matches with base and constitutes, there is delicate structure, easy to carry, and several tonnes of weight liftings can be realized.
Helicitic texture of the present utility model all uses rectangular thread, improves the support strength between helicitic texture further so that the lifting weight that jack can be safe.
This utility model screw-rod structure assembly uses THE NEST STRUCTURE, the most nestable, operationally, can stretch step by step, not only make jack have less structure, the most also make the lift height of jack have bigger increase.
This utility model is when arranging, and the non-through each parts of female thread, due to the accident causing screw rod to screw out of slipping up when can avoid jack to work.
This utility model arranges post holes and matched swingle, can be more convenient control the flexible of jack.
This utility model arranges extreme position when axial alignment pin can limit screw retracts at base and cored screw bottom.
The upper surface of this utility model top cover is machined with the groove being alternately present, to increase the frictional force between lifting weight, it is to avoid weight landing；Along with being gradually reduced of multi-stage screw diameter, the rectangular thread of its accessory processing is gradually increased, and screw thread effective bearing area is constant, and every grade of screw rod all has identical bearing capacity, constant to ensure jack jacking capacity.
Accompanying drawing explanation
Fig. 1 is this utility model fully retracted state figure.
Fig. 2 is the fully extended state diagram of this utility model.
Fig. 3 is alignment pin partial enlarged drawing described in the utility model.
Wherein, 1-base, 2-first segment screw rod, 3-second section screw rod, 4-solid screw, 5-alignment pin, 6-screw, 7-top cover, 8-swingle, 9-floor.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
nullA kind of Telescopic heavy jack，Solve the weak point that prior art jack lifting stroke is less，The Telescopic heavy jack that the screw-rod structure assembly formed by the way of using multi-layer threaded rod nestable matches with base and constitutes，There is delicate structure、Easy to carry，And several tonnes of weight liftings can be realized，Such as Fig. 1、Fig. 2、Shown in Fig. 3，It is specifically arranged to following structure: be provided with jack body，Jack body includes base 1 and the screw-rod structure assembly of multi-section screw structure composition，Base 1 is provided with cylindrical hole，Female thread it is provided with in cylindrical hole，The external screw thread suitable with the female thread of cylindrical hole it is provided with on described screw-rod structure assembly，Described screw-rod structure assembly is screwed onto in the cylindrical hole of base 1，Cylindrical hole is offered by internal for base 1，Cylindrical hole is offered female thread，The screw-rod structure assembly that multi-section screw structure is constituted is screwed onto in cylindrical hole，During use，By rotation, helicitic texture assembly is stretched out in base 1，And further can also stretch out a section for helicitic texture assembly，Until reaching suitable lift height，And when need not lift，Can reversely rotate again，Whole jack is shunk.
Embodiment 2:
The present embodiment is to optimize further on the basis of above-described embodiment, further for preferably realizing this utility model, each joint cored screw structure can be made to carry out stacking be spirally connected, convenient use, such as Fig. 1, Fig. 2, shown in Fig. 3, use the following structure that arranges especially: described screw-rod structure assembly includes at least two joint cored screws, a upper joint cored screw is screwed onto in next joint cored screw, and next joint cored screw is screwed onto in cylindrical hole, when design uses, upper and lower two joint cored screw physical fit, and next cored screw structure saved is suitable with base.
Embodiment 3:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, such as Fig. 1, Fig. 2, shown in Fig. 3, further for preferably realizing this utility model, use especially the following structure that arranges: described screw-rod structure assembly also includes being screwed onto most goes up the solid screw 4 on the cored screw of a joint, solid screw 4 top is radially arranged the post holes of cross, swingle 8 it is provided through in post holes, in use, base is placed on supporting surface, the bottom of solid screw 4 contacts with thing to be lifted, can be by a section for jack lifting by rotating rotary rods 8, or reversely rotate, a section jack can be shunk.
Embodiment 4:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, further for preferably realizing this utility model, use the following structure that arranges especially: the top of described solid screw 4 is provided with top cover 7, top cover 7 is fixed with solid screw 4 by screw 6, use screw 6 to connect one piece of top cover 7 at the top of solid screw 4 in use, then top cover 7 is contacted with thing to be lifted.
Embodiment 5:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, further for preferably realizing this utility model, use the following structure that arranges especially: on described top cover 7, be provided with groove structure, groove structure is set, the frictional force between thing to be lifted and jack top cover can be increased, thus avoid the occurrence of security incident.
Embodiment 6:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, further for preferably realizing this utility model, use the following structure that arranges especially: described female thread is rectangular thread, and the length that arranges of female thread is less than the degree of depth of cylindrical hole, when arranging, all use the most through mode to arrange when being threaded structure in the cylindrical hole of base 1 and in the endoporus of cored screw, can avoid owing to a upper nodule structure to be screwed out in next nodule structure completely during maloperation the situation generation led to a disaster.
Embodiment 7:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, such as Fig. 1, Fig. 2, shown in Fig. 3, further for preferably realizing this utility model, use the following structure that arranges especially: the length that arranges of the internal whorl of described cored screw is also smaller than the length of cored screw, and the internal whorl of the external screw-thread of cored screw and cored screw all uses rectangular thread, when arranging, the most through mode is all used to arrange when being threaded structure in the cylindrical hole of base 1 and in the endoporus of cored screw, can avoid owing to a upper nodule structure to be screwed out in next nodule structure completely during maloperation the situation generation led to a disaster.
Embodiment 8:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, further for preferably realizing this utility model, use the following structure that arranges especially: be radially arranged alignment pin 5 in the bottom of described base 1, extreme position during screw retracts can be limited.
Embodiment 9:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, further for preferably realizing this utility model, use especially following arrange structure in: be radially arranged alignment pin 5 in the bottom of described cored screw, extreme position during screw retracts can have been limited.
Embodiment 10:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, further for preferably realizing this utility model, use the following structure that arranges especially: the surrounding at described base 1 is provided with floor 9, can improve the intensity of base 1.
Base 1 uses cylinder, and it is welded with floor 9 in cylinder surrounding, to play the purpose increasing base 1 intensity, base 1 center is provided with cylindrical hole, rectangular thread it is machined with in cylindrical hole, rectangular thread has bigger holding strength, the non-through cylindrical hole of rectangular thread, the accident causing screw rod to screw out due to error when jack can be avoided to work.After cylindrical hole loads first order screw rod 2, alignment pin 5 is installed in cylindrical hole, to limit the limit advanced position of first order screw rod 2；First order screw rod 2 is machined with endoporus, inner hole structure is similar with the cylindrical hole on base, second level screw rod 3 is similar with first order screw rod 2 structure, screw rod uses THE NEST STRUCTURE, the most nestable, operationally, can stretch step by step, not only making jack have less structure, the most also make jack is exactly highly to have had bigger increase.Afterbody screw rod, i.e. solid screw 4 is solid cylinder structure, its top is radially machined with the post holes of cross, penetrating swingle 8 in post holes, to control the flexible of jack, solid screw 4 top is provided with top cover 7, top cover 7 uses screw 6 to be connected with solid screw 4, top cover 7 upper surface is machined with the groove structure being alternately present, to increase the frictional force between lifting weight, it is to avoid weight landing.Along with being gradually reduced of multi-stage screw diameter, the rectangular thread of its accessory processing is gradually increased, and screw thread effective bearing area is constant, and every grade of screw rod all has identical bearing capacity, constant to ensure jack jacking capacity.
The above; it it is only preferred embodiment of the present utility model; not this utility model is done any pro forma restriction, every according to technical spirit of the present utility model, above example is made any simple modification, equivalent variations, within each falling within protection domain of the present utility model.
Claims (10)
1. a Telescopic heavy jack, it is characterized in that: be provided with jack body, jack body includes base (1) and the screw-rod structure assembly of multi-section screw structure composition, base (1) is provided with cylindrical hole, female thread it is provided with in cylindrical hole, being provided with the external screw thread suitable with the female thread of cylindrical hole on described screw-rod structure assembly, described screw-rod structure assembly is screwed onto in the cylindrical hole of base (1).
A kind of Telescopic heavy jack the most according to claim 1, it is characterized in that: described screw-rod structure assembly includes at least two joint cored screws, a upper joint cored screw is screwed onto in next joint cored screw, and next joint cored screw is screwed onto in cylindrical hole.
A kind of Telescopic heavy jack the most according to claim 2, it is characterized in that: described screw-rod structure assembly also includes being screwed onto most goes up the solid screw (4) on the cored screw of a joint, solid screw (4) top is radially arranged the post holes of cross, is provided through swingle (8) in post holes.
A kind of Telescopic heavy jack the most according to claim 3, it is characterised in that: be provided with top cover (7) at the top of described solid screw (4), top cover (7) is fixed with solid screw (4) by screw (6).
A kind of Telescopic heavy jack the most according to claim 4, it is characterised in that: on described top cover (7), it is provided with groove structure.
6. according to a kind of Telescopic heavy jack described in any one of claim 1-5, it is characterised in that: described female thread is rectangular thread, and the length that arranges of female thread is less than the degree of depth of cylindrical hole.
7. according to a kind of Telescopic heavy jack described in any one of claim 2-5, it is characterized in that: the length that arranges of the internal whorl of described cored screw is also smaller than the length of cored screw, and the internal whorl of the external screw-thread of cored screw and cored screw all uses rectangular thread.
8. according to a kind of Telescopic heavy jack described in any one of claim 1-5, it is characterised in that: it is radially arranged alignment pin (5) in the bottom of described base (1).
9. according to a kind of Telescopic heavy jack described in any one of claim 2-5, it is characterised in that: alignment pin (5) it has been radially arranged in the bottom of described cored screw.
10. according to a kind of Telescopic heavy jack described in any one of claim 1-5, it is characterised in that: the surrounding at described base (1) is provided with floor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461181.2U CN205603130U (en) | 2016-05-19 | 2016-05-19 | Telescopic heavy jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461181.2U CN205603130U (en) | 2016-05-19 | 2016-05-19 | Telescopic heavy jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205603130U true CN205603130U (en) | 2016-09-28 |
Family
ID=56949384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620461181.2U Expired - Fee Related CN205603130U (en) | 2016-05-19 | 2016-05-19 | Telescopic heavy jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205603130U (en) |
-
2016
- 2016-05-19 CN CN201620461181.2U patent/CN205603130U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20210519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |