Gun-shaped jack

Abstract

The utility model relates to a gun-shaped jack, which is characterized in that a progressive linkage mechanism of a gun-shaped clamp is reversely configured to achieve the application of progressive external support, the gun-shaped jack comprises a main body, a linkage rod and a slow descending device, the slow descending device is provided with an elastic sheet and a plurality of second limiting ratchet sheets, the second limiting ratchet pieces are controlled by the elastic piece to achieve rapid meshing and non-meshing switching with the linkage rod, the fine adjustment slow descending effect is achieved, and when a user adjusts the height of a heavy object, the user does not need to be supported by hand force, so that the easy and rapid adjustment effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gun type jack, in detail relates to a gun type clamp its progressive linkage mechanism reverse configuration, reach the application of progressive external support, and more have fine adjustment slow drop structure. BACKGROUND

[0002] Please refer to Chinese Taiwan patent certificate number TWM284485 "clamp improved structure", it is a gun type clamp, its clamp mainly is by with relative jaw block's mobile pincers and fixed pincers are composed, wherein mobile pincers are fixedly arranged at the end of a guide rod, and guide rod is slidably arranged on the fixed pincers, and the bottom edge of fixed pincers is respectively protruded with a handle with release sheet and pivotally arranged with a pressing handle, and the actuating sheet and the pressing handle can respectively act on the clamping brake group and the limit brake group in the fixed pincers, and repeatedly pressing the pressing handle can gradually pull the guide rod, so that the mobile pincers and the fixed pincers are clamped.

[0003] The foregoing is a basic gun type clamp creation, which has a progressive linkage mechanism, and the two pincer bodies can be gradually clamped by repeatedly pressing; with the expansion of the application level of users, the creator reversely configures the progressive clamping mechanism, so that the progressive external support effect is achieved, and the gun type jack is applied to the high device; however, when the gun type jack needs to be fine adjusted and lowered to adjust the height of the weight after lifting the weight, the user's hand directly supports the weight, which is very inconvenient to use, and is a key point to be improved.

[0004] Therefore, the creator has explored the problems faced by the existing gun type jack and actively sought solutions through years of development experience in the relevant industry, and finally successfully created a gun type jack, which is a gun type clamp with a progressive linkage mechanism reversely configured, achieving the application of progressive external support, and further having a fine adjustment slow drop structure, so that the user does not need to support the weight with the hand when adjusting the height of the weight, achieving easy and fast adjustment effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a gun type jack, which is a gun type clamp with a progressive linkage mechanism reversely configured, achieving the application of progressive external support, and further having a fine adjustment slow drop structure.

[0006] In order to achieve the foregoing creation purpose, the utility model provides a gun type jack, which comprises a main body, a linkage rod and a slow drop device, characterized by:

[0007] The main body is provided with a first supporting sheet at one end, the connecting rod is movably arranged in the main body, and the connecting rod is provided with a second supporting sheet corresponding to the first supporting sheet at one end. The connecting rod drives the first supporting sheet and the second supporting sheet to gradually move away, which is defined as the first movement direction. The connecting rod drives the first supporting sheet and the second supporting sheet to gradually move close, which is defined as the second movement direction. A driving handle is pivotally arranged below the main body. A progressive connecting mechanism capable of enabling the connecting rod to complete the first movement direction action through the control of the driving handle is arranged at the front position inside the main body. A limiting mechanism is arranged at the rear position inside the main body. The limiting mechanism comprises a first spring and a plurality of first limiting ratchet sheets. The connecting rod is arranged in the plurality of first limiting ratchet sheets. One end of the first spring is abutted against one side of the plurality of first limiting ratchet sheets, and the plurality of first limiting ratchet sheets are deflected to engage the connecting rod to normally limit the displacement of the connecting rod to the second movement direction. One of the first limiting ratchet sheets is provided with a release lever capable of releasing the engagement relationship between the connecting rod and the plurality of first limiting ratchet sheets.

[0008] The device comprises a spring, a plurality of second limiting ratchet sheets, a transmission element, a pull rod and a fine adjustment handle. The spring is arranged at the middle position inside the main body. The main body is formed with a spring seat for the arrangement of the spring. One side of the spring and the spring seat is provided with a compression gap. The fine adjustment handle is pivotally arranged below the main body, and the fine adjustment handle has a driving end abutting against the other side of the spring. The plurality of second limiting ratchet sheets are arranged at the middle position inside the main body, and the connecting rod is arranged in the plurality of second limiting ratchet sheets. One side of the plurality of second limiting ratchet sheets is abutted against the other end of the first spring. The other side of the plurality of second limiting ratchet sheets is abutted against one side of the fine adjustment handle. The plurality of second limiting ratchet sheets and the connecting rod are in a non-engagement state in a normal state. The transmission element is arranged at the rear position inside the main body, and the transmission element is abutted against the other side of the plurality of first limiting ratchet sheets. The pull rod is arranged between the middle position and the rear position inside the main body, and one end of the pull rod is pivotally arranged at the driving end, and the other end of the pull rod is pivotally arranged at the transmission element.

[0009] Thus, by repeatedly pressing the driving handle, the first support piece and the second support piece can be made to move in the first movement direction by the progressive linkage mechanism, and the jack can be extended in an outward supporting manner. When the pressing release lever is pressed, the positioning effect of the first limiting pawl and the linkage rod is released, so that the first support piece and the second support piece move in the second movement direction, and the jack can be quickly folded. When the first support piece and the second support piece are used for supporting heavy objects, the driving end is pivoted to press the elastic piece into the compression gap, the pull rod pulls the transmission member to move the plurality of first limiting pawls to release the engagement positioning of the linkage rod, and at the same time, the plurality of second limiting pawls are pushed by the fine adjustment handle to be deflected and engage with the linkage rod. At the same time that the plurality of first limiting pawls release the engagement positioning of the linkage rod and the plurality of second limiting pawls engage with the linkage rod, the linkage rod is not fixed by the plurality of first limiting pawls and the plurality of second limiting pawls for a moment, so that the linkage rod can be displaced in the second movement direction by gravity. When the fine adjustment handle is released, the elastic piece pushes the pull rod to release the pushing of the plurality of first limiting pawls by the transmission member, the plurality of first limiting pawls are pushed by the first spring to re-engage with the linkage rod, and at the same time, the fine adjustment handle releases the pushing of the plurality of second limiting pawls, and the plurality of second limiting pawls are pushed by the first spring to release the engagement with the linkage rod. Thus, by repeatedly pressing the fine adjustment handle, the slow descending adjustment effect can be achieved.

[0010] As can be seen from the foregoing utility model content, the gun-type jack of the utility model not only has the progressive linkage mechanism of the gun-type clamp configured in reverse, achieving the progressive outward supporting application, but also can make the first support piece and the second support piece move in a short interval by gravity through one pressing operation of the slow descending device each time, and the slow descending adjustment application can be achieved by repeatedly pressing. Therefore, the utility model is a quite practical and progressive creation, and is quite worth popularizing in the industry and being made public to the general public. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 FIG. 1 is a perspective view of the gun-type jack of the utility model.

[0012] Figure 2 FIG. 2 is an exploded view of the gun-type jack of the utility model.

[0013] Figure 3 FIG. 3 is a partial perspective view of the utility model in an unused state.

[0014] Figure 4 FIG. 4 is a partial perspective view of the utility model when the driving handle is pressed.

[0015] Figure 5It is a partial perspective view of the utility model when pressing the release lever.

[0016] Figure 6 It is a partial perspective view of the utility model when pressing the fine adjustment handle.

[0017] The figure mark explanation: 1 - main body; 11 - first support sheet; 12 - drive handle; 13 - progressive linkage mechanism; 14 - limiting mechanism; 141 - first spring; 142 - first limiting ratchet; 143 - release lever; 15 - spring seat; 2 - linkage rod; 21 - second support sheet; 3 - slow descent device; 31 - spring; 32 - second limiting ratchet; 33 - conducting piece; 34 - pull rod; 35 - fine adjustment handle; 351 - drive end; A - first movement direction; B - second movement direction; C - compression gap. DETAILED DESCRIPTION

[0018] The utility model relates to a gun type jack, which is a gun type clamp with a reverse configured progressive linkage mechanism, achieving progressive external support application, and further having a fine adjustment slow descent structure, please refer to Figures 1 to 6 The utility model provides a gun type jack, which comprises a main body 1, a linkage rod 2 and a slow descent device 3.

[0019] One end of the main body 1 is provided with a first support sheet 11, the linkage rod 2 is movably arranged in the main body 1, and one end of the linkage rod 2 is provided with a second support sheet 21 corresponding to the first support sheet 11; when the linkage rod 2 drives the first support sheet 11 and the second support sheet 21 to gradually move away, it is defined as the first movement direction A; when the linkage rod 2 drives the first support sheet 11 and the second support sheet 21 to gradually move close, it is defined as the second movement direction B; a drive handle 12 is pivotally arranged below the main body 1; a progressive linkage mechanism 13 capable of being controlled by the drive handle 12 is arranged at the front position inside the main body 1, so that the linkage rod 2 can complete the first movement direction action; the second support sheet 21 is supported on the ground, and the first support sheet 11 is supported on the goods; when the utility model is operated, the goods can be lifted to a jack height; a limiting mechanism 14 is arranged at the rear position inside the main body 1; the limiting mechanism 14 comprises a first spring 141 and a plurality of first limiting ratchets 142; the linkage rod 2 penetrates through the plurality of first limiting ratchets 142; one end of the first spring 141 is elastically abutted against the plurality of first limiting ratchets 142, and the plurality of first limiting ratchets 142 are deviatedly engaged with the linkage rod 2 to normally limit the displacement of the linkage rod 2 to the second movement direction B; one of the first limiting ratchets 142 of the limiting mechanism 14 is provided with a release lever 143 capable of releasing the engagement relationship between the linkage rod 2 and the plurality of first limiting ratchets 142.

[0020] The slow descent device 3 comprises a spring 31, a plurality of second limiting ratchet 32, a transmission member 33, a pull rod 34 and a fine adjustment handle 35. The spring 31 is arranged at the middle position of the inner part of the main body 1. The inner part of the main body 1 is formed with a spring seat 15 for the arrangement of the spring 31. The spring 31 is kept with a compression gap C on one side of the spring seat 15. The fine adjustment handle 35 is pivotally arranged below the main body 1. The fine adjustment handle 35 has a driving end 351 abutting against the other side of the spring 31. The plurality of second limiting ratchets 32 are arranged at the middle position of the inner part of the main body 1. The second limiting ratchets 32 are penetrated by the linkage rod 2. One side of the second limiting ratchets 32 is abutted against the other end of the first spring 141. The other side of the second limiting ratchets 32 is abutted against one side of the fine adjustment handle 35. The second limiting ratchets 32 and the linkage rod 2 are in the non-engaged state in normal condition. The transmission member 33 is arranged at the rear position of the inner part of the main body 1. The transmission member 33 is abutted against the other side of the plurality of first limiting ratchets 142. The pull rod 34 is penetrated between the middle position and the rear position of the inner part of the main body 1. One end of the pull rod 34 is pivotally arranged at the driving end 351. The other end of the pull rod 34 is pivotally arranged at the transmission member 33.

[0021] Therefore, by repeatedly pressing the driving handle 12, the first support plate 11 and the second support plate 21 can be gradually moved in the first movement direction A by the progressive linkage mechanism 13. The jack can be extended to the maximum height in the outward supporting manner. When the release lever 143 is pressed, the positioning effect of the first limiting ratchet 142 and the linkage rod 2 can be released. The first support plate 11 and the second support plate 21 can be moved in the second movement direction B. The application of the fast folding can be achieved. When the first support plate 11 and the second support plate 21 are applied to the heavy object supporting operation, the driving end 351 can be pivotally moved by pressing the fine adjustment handle 35. The spring 31 can be pressed into the compression gap C (as shown in the figure) to achieve the supporting effect. Figure 6When the fine adjustment handle is released, the spring 31 pushes the pull rod 34 to make the transmission member 33 disengage from the plurality of first limiting ratchets 142, the plurality of first limiting ratchets 142 are re-engaged with the linkage rod 2 by the first spring 141, and the fine adjustment handle 35 simultaneously disengages from the plurality of second limiting ratchets 32, the plurality of second limiting ratchets 32 are disengaged from the linkage rod 2 by the first spring 141. Thus, the fine adjustment handle 35 is repeatedly pressed to achieve the slow descent adjustment effect.

[0022] From the foregoing inventive content, the gun-type jack of the present application not only has the gun-type clamp with the reverse configuration of the progressive linkage mechanism to achieve the application of the progressive outward expansion, but also can make the first support plate and the second support plate produce the short-interval folding movement due to gravity by one pressing operation of the slow descent device, and the slow descent adjustment application can be achieved by repeated pressing.

[0023] The above description is only used to explain the preferred embodiments of the present application, and is not intended to limit the present application in any form. Any modification or change made in the same spirit of the present application, other implementable forms and the same effect are still included in the scope of the present application.

Claims

1. A gun-type jack comprising a main body, a connecting rod and a slow descent device, characterized in that: one end of the main body is provided with a first support plate, the connecting rod is movably arranged in the main body, and one end of the connecting rod is provided with a second support plate corresponding to the first support plate, the connecting rod drives the first support plate and the second support plate to gradually move away, which is defined as a first movement direction, the connecting rod drives the first support plate and the second support plate to gradually move close, which is defined as a second movement direction, a driving handle is pivotally arranged below the main body, a progressive connecting mechanism capable of enabling the connecting rod to complete the first movement direction action through the control of the driving handle is arranged at a front position inside the main body, a limiting mechanism is arranged at a rear position inside the main body, the limiting mechanism comprises a first spring and a plurality of first limiting ratchet plates, the connecting rod is arranged through the plurality of first limiting ratchet plates, one end of the first spring is abutted against one side of the plurality of first limiting ratchet plates, and the plurality of first limiting ratchet plates are deflected and engaged with the connecting rod to normally limit the displacement of the connecting rod to the second movement direction, one of the first limiting ratchet plates is provided with a release lever capable of releasing the engagement relationship between the connecting rod and the plurality of first limiting ratchet plates; the slow descent device comprises a spring plate, a plurality of second limiting ratchet plates, a transmission member, a pull rod and a fine adjustment handle, the spring plate is arranged at a middle position inside the main body, the main body is formed with a spring plate seat for the arrangement of the spring plate, and a compression gap is reserved between one side of the spring plate and the spring plate seat, the fine adjustment handle is pivotally arranged below the main body, and the fine adjustment handle has a driving end abutting against the other side of the spring plate, the plurality of second limiting ratchet plates are arranged at the middle position inside the main body, and the connecting rod is arranged through the plurality of second limiting ratchet plates, one side of the plurality of second limiting ratchet plates is abutted against the other end of the first spring, the other side of the plurality of second limiting ratchet plates is abutted against one side of the fine adjustment handle, the plurality of second limiting ratchet plates and the connecting rod are in a non-engaged state in a normal state, the transmission member is arranged at the rear position inside the main body, and the transmission member is abutted against the other side of the plurality of first limiting ratchet plates, the pull rod is arranged through the middle position and the rear position inside the main body, and one end of the pull rod is pivotally arranged at the driving end, and the other end of the pull rod is pivotally arranged at the transmission member.

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