CN215160549U

CN215160549U - Hand chain booster

Info

Publication number: CN215160549U
Application number: CN202121760626.4U
Authority: CN
Inventors: 曾剑
Original assignee: Chongqing Toho Rongkee Electronic And Machinery Co ltd
Current assignee: Chongqing Toho Rongkee Electronic And Machinery Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-14
Anticipated expiration: 2031-07-30

Abstract

The utility model belongs to the technical field of small-size jack-up equipment of lifting by crane, specifically disclose a hand power chain booster, including the inside booster body of seting up the chain hole, swing joint has the card firmware on the booster body, and the chain hole is located the card firmware along the orbit of booster body activity, and the orbit and the chain hole of booster body activity are perpendicular or slope are followed to the card firmware, the first supplementary handle of booster body bottom fixedly connected with, and first supplementary handle sets up with booster body is perpendicular or slope, and the supplementary handle of fixedly connected with second between the one end of booster body and the booster body top is kept away from to first supplementary handle. The utility model discloses all have stable impetus when one-hand operation and bimanualness, can not only effectively improve the hand power condition of pulling chain for the pulling chain is light convenient, can swiftly operate chain block in addition and promote the heavy object, improves work efficiency.

Description

Hand chain booster

Technical Field

The utility model belongs to the technical field of small-size jack-up lifting equipment, especially, relate to a hand power chain booster.

Background

As a small-sized hoisting mechanical device, the chain block is simple to use and convenient to carry, has been widely applied to various industries and occasions, is mainly suitable for places such as factories, mines, construction sites, docks, warehouses and the like, and is used for installing machines and hoisting goods.

In the prior art, a chain block is manually pulled to enable the block to work to lift a heavy object, the pulling force for pulling the block is generally 20-50Kg, and the pulling process is time-consuming and labor-consuming. Especially, when the chain block pulls a large-tonnage cargo, the used pulling force is large, generally 50Kg more, and the chain is small, and the general specification is 4.8 × 22.4 or 5 × 25, so that the chain is very laborious to pull and easily hurts the palm by using a pure hand.

In order to change the current situation, the applicant applies for a patent named as a 'hand-pulling chain assistor', and the hand-pulling condition for pulling the chain can be effectively improved by clamping the chain into the assistor and then pulling the chain. However, the applicant has found in the long-term practice that the pulling aid can play a good role when the object to be pulled is light in weight and can be pulled by one hand, and when the object to be pulled is heavy in weight and the chain needs to be pulled by two hands, the size of the handle is limited, the handle is not beneficial to holding by two hands simultaneously, and the force is not convenient to apply after holding; moreover, the pulling aid with the long structure is difficult to avoid the situation of handle falling off when a user applies force, thereby causing potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand power chain booster all has stable impetus when one-hand operation and bimanualness, can effectively improve the hand power condition of pulling chain for it is light convenient to stimulate the chain, improves work efficiency.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

hand power chain booster, including the inside booster body of seting up the chain hole, swing joint has the card firmware on the booster body, the chain hole is located the card firmware along the orbit of booster body activity, the card firmware is perpendicular or the slope along the orbit of booster body activity with the chain hole, the first supplementary handle of booster body bottom fixedly connected with, first supplementary handle is perpendicular or the slope setting with the booster body, fixedly connected with second supplementary handle between the one end that booster body was kept away from to first supplementary handle and booster body top.

Based on the scheme, the utility model has the using principle that the chain is placed in the chain hole, and then the clamping piece is driven to move towards the direction of the chain hole so that the clamping piece is inserted into the chain ring of the chain, so as to complete the fixation between the chain and the booster and avoid the displacement between the chain and the booster; when the hand booster needs to change the position on the chain, the clamping piece is loosened to move the clamping piece out of the chain ring, and the chain can be randomly displaced in the chain hole, so that the position of the hand zipper puller on the chain is changed.

The utility model discloses in, the booster has at least three impetus, including booster body, the supplementary handle of first supplementary handle and second.

When the booster is operated by one hand, the booster body is usually held by one hand to perform operation, the operation is convenient, the force application is easy, under the condition, the first auxiliary handle arranged at the bottom of the booster body is equivalent to a limiting structure, and when the booster body is held to generate hand slip, the first auxiliary handle provides a limiting supporting point for the hand, so that the hand is prevented from being completely separated from the booster body, and the potential safety hazard is reduced; meanwhile, the first auxiliary handle or the booster can be integrally held by a single hand to operate.

When the booster is operated by two hands, the booster body is usually held by one hand, and the first auxiliary grip or the second auxiliary grip is held by the other hand, so that the two hands have stable force points on the booster, and the booster is convenient to operate and apply force. The first auxiliary handle can be an acting point when the first auxiliary handle is operated by a single hand or can be an acting point when the first auxiliary handle is operated by two hands, and can limit the position of the hand when the hand slides, so that the auxiliary handle has multiple effects.

Preferably, a horizontally arranged connecting rod is fixedly connected between the upper end of the second auxiliary handle and the top of the booster body.

Preferably, the horizontal distance between the upper end of the second auxiliary handle and the booster body is smaller than the horizontal distance between the lower end of the second auxiliary handle and the booster body.

Preferably, the booster body is provided with a limiting hole communicated with the chain hole, the clamping piece is arranged in the limiting hole in a sliding mode, the clamping piece is provided with a limiting groove, and the booster body is fixedly connected with a limiting shaft inserted into the limiting groove.

Preferably, a return spring is arranged between the booster body and the limiting hole.

Preferably, the booster body includes a first body and a second body, the second body is hinged to the first body, and the chain hole is provided between the first body and the second body.

Preferably, a locking structure is arranged between the first body and the second body and comprises a clamping groove formed in the second body, a clamping block is movably mounted on the first body, and the clamping groove is located on a track where the clamping block moves along the first body.

Preferably, the clamping groove is an arc-shaped groove formed in the second body, the clamping block is rotatably arranged on the first body, and the clamping block can be embedded into or separated from the arc-shaped groove by rotating the clamping block.

Preferably, the clamping groove is a strip-shaped groove arranged on the second body, the clamping block is arranged on the first body in a sliding mode, the first body is further provided with a sliding button in a sliding mode, the sliding button is fixedly connected with the clamping block, and the sliding button can be embedded into or separated from the strip-shaped groove through the clamping block.

The beneficial effect of this scheme: the utility model discloses all have stable impetus when one-hand operation and bimanualness, can not only effectively improve the hand power condition of pulling chain for the pulling chain is light convenient, can swiftly operate chain block in addition and promote the heavy object, improves work efficiency.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view showing an open state of a chain hole in the embodiment;

fig. 3 is a transverse cross-sectional view of an embodiment of the invention;

fig. 4 is a longitudinal cross-sectional view of an embodiment of the invention;

fig. 5 is a schematic diagram of a prior art switch with a rotary switch.

Reference numerals in the drawings of the specification include: the booster comprises a booster body 10, a first body 101, a second body 102, a first auxiliary handle 20, a second auxiliary handle 30, a connecting rod 40, a clamping piece 50, a fixed shaft 51, a return spring 52, a boss 53, a limiting groove 54, a limiting shaft 55, a limiting hole 56, a chain hole 60, a strip-shaped groove 70, a clamping block 71 and a spring 72.

Detailed Description

Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. The term "sequentially comprising A, B, C, etc" merely indicates the order of the included elements A, B, C, etc. and does not exclude the possibility of including other elements between a and B and/or between B and C. The description of "first" and its variants is merely for the purpose of distinguishing between the parts and does not limit the scope of the invention, which can be written as "second" and so on without departing from the scope of the invention.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to fig. 1 to 5.

This embodiment provides a hand chain booster, including the inside booster body 10 who offers chain hole 60, swing joint has card firmware 50 on booster body 10, chain hole 60 is located card firmware 50 along the orbit of booster body 10 activity, card firmware 50 is perpendicular or the slope along the orbit and chain hole 60 of booster body 10 activity, the first supplementary handle 20 of fixedly connected with in booster body 10 bottom, first supplementary handle 20 is perpendicular or the slope setting with booster body 10, fixedly connected with second supplementary handle 30 between the one end that booster body 10 was kept away from to first supplementary handle 20 and booster body 10 top.

Based on the above scheme, the utility model discloses the theory of use is, puts into the chain hole 60 with the chain, then drives the direction motion of card firmware 50 to chain hole 60 and makes card firmware 50 insert in the chain ring of chain to accomplish the fixed between chain and the booster, avoid producing the displacement between chain and the booster; when the booster needs to change the position on the chain, the clamping piece 50 is loosened to enable the clamping piece 50 to move out of the chain ring, and the chain can randomly move in the chain hole 60, so that the position of the hand zipper puller on the chain is changed.

The utility model discloses in, the booster has at least three impetus, including booster body 10, first supplementary handle 20 and the supplementary handle 30 of second.

When the booster is operated by one hand, the booster body 10 is usually held by one hand to execute operation, the operation is convenient, and the force application is easy, under the condition, the first auxiliary handle 20 arranged at the bottom of the booster body 10 is equivalent to a limiting structure, when the booster body 10 is held to generate hand slip, the first auxiliary handle 20 provides a limiting supporting point for the hand, the hand is prevented from being completely separated from the booster body 10, and the condition that the booster is separated due to hand slip is avoided; meanwhile, the first auxiliary grip 20 or the booster may be operated by holding the whole with one hand, so that the booster may have various operation modes.

When the booster is operated by two hands, the booster body 10 is usually held by one hand, and the first auxiliary grip 20 or the second auxiliary grip 30 is held by the other hand, so that the two hands have stable force points on the booster, and the booster is convenient to operate and apply force. The first auxiliary handle 20 can be an acting point when operated by a single hand or an acting point when operated by two hands, and can limit the hand when the hand slides, so that the auxiliary handle has multiple effects.

In this embodiment, the entire booster is made of engineering plastics and designed according to human engineering, which has the characteristics of aesthetic feeling and increased holding comfort for the user, and the first auxiliary grip 20 and the second auxiliary grip 30 are integrally formed with the booster body 10 by injection molding.

Wherein, booster body 10 includes first body 101 and second body 102, and first supplementary handle 20 and second supplementary handle 30 all with first body 101 fixed connection, and second body 102 articulates on first body 101, makes first body 101 and second body 102 constitute the portion that opens and shuts, and chain hole 60 sets up between first body 101 and second body 102 and runs through booster body 10.

Specifically, referring to fig. 2 and 3, the second body 102 is located on a side of the first body 101 away from the first auxiliary handle 20 and the second auxiliary handle 30, one side of the second body 102 is hinged to the first body 101 through a pin, and the other side of the second body 102 is an opening-closing side. When the opening and closing side of the second body 102 abuts against the first body 101, the chain hole 60 is closed, otherwise, when the second body 102 rotates downwards, the chain hole 60 is opened, and a chain is conveniently placed in the chain hole 60.

Referring to fig. 3, the cross-section of the chain hole 60 is four-lobed, since the chain is generally formed by fastening the chain ring to the chain ring, the cross-section is four-lobed, the first body 101 includes three-quarters of the chain hole 60, the second body 102 includes one quarter of the chain hole 60, and the cross-section of the chain hole 60 is four-lobed to prevent the chain from rotating in the chain hole 60 and being wound, so that the fastener 50 is more easily inserted into the chain ring.

Referring to fig. 3, a locking structure is arranged between the opening and closing side of the second body 102 and the first body 101, the locking structure includes a clamping groove arranged on the second body 102, a clamping block 71 is movably arranged on the first body 101, and the clamping groove is located on a moving track of the clamping block 71 along the first body 101.

Referring to fig. 5, in some embodiments, the locking groove is an arc-shaped groove disposed on the second body 102, the latch 71 is rotatably disposed on the first body 101, and the latch 71 is rotated to enable the latch 71 to be inserted into or separated from the arc-shaped groove, so as to achieve locking between the second body 102 and the first body 101.

Referring to fig. 3, in other embodiments, the locking groove is a strip-shaped groove disposed on the second body 102, the latch 71 is slidably disposed on the first body 101, a slide button is further slidably mounted on the first body 101, the slide button is fixedly connected with the latch 71, and the slide button can be inserted into or separated from the strip-shaped groove 70 by the latch 71. Specifically, the strip-shaped groove 70 is disposed on the opening and closing side of the second body 102, a mounting groove is disposed in the first body 101, the fixture block 71 is disposed in the mounting groove, a sliding protrusion is integrally formed in the mounting groove, a sliding groove matched with the sliding protrusion is disposed on the fixture block 71, a through groove communicated with the mounting groove is disposed on the lower side of the first body 101, the bottom of the fixture block 71 is clamped into the strip-shaped groove 70 through the through groove, a space is formed between the upper portion of the fixture block 71 and the side wall of the upper portion of the mounting groove, and only the sliding button needs to be pushed upwards when the chain hole 60 is opened, so that the bottom of the fixture block 71 is separated from the strip-shaped groove 70. And, be equipped with spring 72 between fixture block 71 upper portion and the mounting groove upper portion, spring 72 makes the bottom of fixture block 71 pass through logical groove downwards all the time and stretch out under the circumstances that no external force disturbed.

Referring to fig. 4, the fixing member 50 is a button with a fixing shaft 51 at the left end, the first body 101 is provided with a limiting hole 56, the left side of the limiting hole 56 is communicated with the chain hole 60, in this embodiment, the limiting hole 56 is perpendicular to the chain hole 60, the fixing member 50 is slidably fitted in the limiting hole 56, and the mutually perpendicular effect of the chain hole 60 and the limiting hole 56 is to facilitate the fixing shaft 51 in the limiting hole 56 to be inserted into a chain ring of the chain and better fix the booster on the chain. In other embodiments, the chain holes 60 and the limiting holes 56 may not be perpendicular to each other.

Further, a boss 53 is arranged in the limiting hole 56, and a return spring 52 is arranged on the boss 53. The return spring 52 is disposed between the boss 53 and the fastening member 50, the fastening member 50 presses the return spring 52, and the return spring 52 is used for returning the fastening member 50 when the fastening member 50 is released after being pressed down. In the present embodiment, the number of the return springs 52 is two, and in another embodiment, the number of the return springs 52 is one, and the return springs are sleeved on the fixed shaft 51. When one return spring 52 is arranged, the elastic force is larger, the return spring 52 is easy to fall from the hole of the fixed shaft 51 or be clamped in the hole of the fixed shaft 51, and the two return springs 52 are arranged, so that the function of the booster is more stable and the force required for pressing the key is smaller compared with the arrangement of one return spring 52. In other embodiments, the number of return springs 52 may be other.

Referring to fig. 4, in some embodiments, a limit groove 54 is formed on a side edge of the fastening member 50, a limit shaft 55 inserted into the limit groove 54 is fixedly connected to the booster body 10, and the limit shaft 55 limits a moving distance of the fastening member 50, so as to prevent the fastening member 50 from coming out of the limit hole 56.

Referring to fig. 1, in the present embodiment, the included angle between the first auxiliary grip 20 and the booster body 10 is an obtuse angle, so that the included angle is more suitable for the hand characteristics of a human body, and in other embodiments, the first auxiliary grip 20 may be perpendicular to the booster body 10, or the included angle is an acute angle.

In some embodiments, a horizontally disposed connecting rod 40 is fixedly connected between the upper end of the second auxiliary handle 30 and the top of the booster body 10, and the connecting rod 40 forms the booster body 10, the first auxiliary handle 20 and the second auxiliary handle 30 into a closed loop structure, so that the appearance is more attractive, and the overall strength and stability of the booster can be increased.

In some embodiments, the horizontal distance between the upper end of the second auxiliary grip 30 and the booster body 10 is smaller than the horizontal distance between the lower end of the second auxiliary grip 30 and the booster body 10, that is, the second auxiliary grip 30 is arranged with the upper end inclined to the left and lower ends, so that the lower part of the booster body 10 has a larger operation space, and the inclined second auxiliary grip 30 reduces the probability of slipping of hands when a user operates with two hands, thereby reducing the potential safety hazard.

In some embodiments, the inside of the booster body 10 and the underside of the first auxiliary grip 20 are provided with anti-slip protrusions.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. Hand power chain booster, including inside booster body (10) of seting up chain hole (60), swing joint has card firmware (50) on booster body (10), and chain hole (60) are located card firmware (50) along the orbit of booster body (10) activity, and the orbit and chain hole (60) of booster body (10) activity are perpendicular or slope, its characterized in that are followed to card firmware (50): the booster comprises a booster body (10), wherein a first auxiliary handle (20) is fixedly connected to the bottom of the booster body (10), the first auxiliary handle (20) is perpendicular to or inclined with the booster body (10), and a second auxiliary handle (30) is fixedly connected between one end, far away from the booster body (10), of the first auxiliary handle (20) and the top of the booster body (10).

2. The hand chain booster of claim 1, wherein: a connecting rod (40) which is horizontally arranged is fixedly connected between the upper end of the second auxiliary handle (30) and the top of the booster body (10).

3. The hand chain booster of claim 1 or 2, wherein: the horizontal distance between the upper end of the second auxiliary handle (30) and the booster body (10) is smaller than the horizontal distance between the lower end of the second auxiliary handle (30) and the booster body (10).

4. The hand chain booster of claim 1, wherein: the booster body (10) is provided with a limiting hole (56) communicated with the chain hole (60), the clamping piece (50) is arranged in the limiting hole (56) in a sliding mode, a limiting groove (54) is formed in the clamping piece (50), and a limiting shaft (55) inserted into the limiting groove (54) is fixedly connected to the booster body (10).

5. The hand chain booster of claim 4, wherein: a return spring (52) is arranged between the booster body (10) and the limiting hole (56).

6. A hand chain booster according to claim 1, 2, 4 or 5 wherein: the booster body (10) comprises a first body (101) and a second body (102), the second body (102) is hinged to the first body (101), and the chain hole (60) is arranged between the first body (101) and the second body (102).

7. The hand chain booster of claim 6, wherein: a locking structure is arranged between the first body (101) and the second body (102), the locking structure comprises a clamping groove arranged on the second body (102), a clamping block (71) is movably arranged on the first body (101), and the clamping groove is located on a track of the clamping block (71) moving along the first body (101).

8. The hand chain booster of claim 7, wherein: the clamping groove is an arc-shaped groove formed in the second body (102), the clamping block (71) is rotatably arranged on the first body (101), and the clamping block (71) can be embedded into or separated from the arc-shaped groove by rotating the clamping block (71).

9. The hand chain booster of claim 7, wherein: the clamping groove is a strip-shaped groove arranged on the second body (102), the clamping block (71) is arranged on the first body (101) in a sliding mode, a sliding button is further arranged on the first body (101) in a sliding mode and fixedly connected with the clamping block (71), and the sliding button can be embedded into or separated from the strip-shaped groove (70) through the clamping block (71).