Anti-falling mechanism of lifting platform

Abstract

The utility model provides an anti-falling mechanism of a lifting platform, which relates to the technical field of anti-falling mechanisms and comprises a base, hydraulic rods are symmetrically mounted at the top end of the base, a platform body is fixed at the output ends of the hydraulic rods, and a protective cover sleeves the top end of the base and is positioned on the periphery of the platform body. Electric air cylinders are symmetrically installed at the positions, close to the left side and the right side, in the platform body, telescopic rods are fixed to the output ends of the electric air cylinders, the outer sides of the telescopic rods are sleeved with reset springs, and arc-shaped clamping blocks are fixed to the ends, away from the electric air cylinders, of the telescopic rods; clamping grooves are formed in the positions, corresponding to the arc-shaped clamping blocks, of the inner side wall of the protection cover, compared with an existing anti-falling mechanism of the lifting platform, the anti-falling mechanism can be kept in a working state on the basis that normal work of the lifting platform is not affected, workers are prevented from being hurt due to sudden falling, and the safety of the workers is improved. And the protectiveness of the anti-falling mechanism of the lifting platform to workers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a falling prevention mechanism technical field, especially a falling prevention mechanism of lifting platform. BACKGROUND

[0002] Lifting platform is commonly used lifting equipment, is mainly used for high place operation needs, is widely used in various industrial enterprises and production lines such as automobile, container, die manufacturing, timber processing, chemical filling, satisfies the lifting demand of different operation height, effectively solves the difficulty of various lifting operations in industrial enterprises, makes production operation easy, lifting platform is generally equipped with falling prevention mechanism to prevent the platform from falling suddenly and causing harm to workers;

[0003] The existing falling prevention mechanism of lifting platform is generally in standby state to prevent affecting the normal lifting of the platform, and the falling prevention mechanism can only start and prevent the platform from falling when the platform has started falling, which still may cause harm to workers and has certain safety hazards, therefore, the falling prevention mechanism of lifting platform is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a falling prevention mechanism of lifting platform, which can prevent the platform from falling suddenly and causing harm to workers, and has certain safety hazards.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A falling prevention mechanism of lifting platform, including the base, the top of base is installed with hydraulic rod, the output end of hydraulic rod is fixed with platform body, the top of base and the periphery of platform body are equipped with protective cover, the inside of platform body is installed with electric cylinder near left and right sides, the output end of electric cylinder is fixed with telescopic link, the outside of telescopic link is equipped with reset spring, the one end of telescopic link is fixed with arc clamping block, the inner side wall of protective cover is set with clamping groove, the bottom of platform body is installed with drive motor near back, the output end of drive motor is installed with transmission gear, the inner side wall of protective cover is fixed with gear strip.

[0007] As a preferred scheme of the utility model, the base and the platform body are made of stainless steel, and the protective cover is made of aluminum alloy.

[0008] The technical effect of adopting the above-mentioned further solution is: the base and platform body made of stainless steel are hard enough to provide good support, while the protective cover made of aluminum alloy is light in weight and high in strength, which can effectively reduce the weight of the device and make the device more convenient to transport.

[0009] As a preferred solution of the present invention, universal wheels are fixedly installed on the bottom of the base near the corners, and the universal wheels are designed as a lockable structure.

[0010] The technical effect of adopting the above further solution is that the universal wheel with a lockable structure design makes it more convenient to move or fix the device when it needs to be moved.

[0011] As a preferred solution of the present invention, the arc-shaped clamping block is adapted to the clamping slot, and the interior of the clamping slot fits with the arc-shaped clamping block.

[0012] The technical effect of adopting the above further solution is: by adapting the arc-shaped card block to the card slot and the interior of the card slot to the arc-shaped card block, the arc-shaped card block can be firmly stuck in the interior of the card slot when subjected to a downward force, and can be well removed from the interior of the card slot when subjected to an upward force.

[0013] As a preferred solution of the present invention, the transmission gear is adapted to the gear bar, and the transmission gear is meshed and connected with the gear bar.

[0014] The technical effect of adopting the above further solution is: through the meshing connection between the transmission gear and the gear bar, the transmission gear can be limited by the gear bar to prevent the platform body from falling, and can effectively assist the platform body to rise and fall.

[0015] As a preferred solution of the present invention, sliders are symmetrically installed on the outer side wall of the platform body, and sliding grooves are opened on the inner side wall of the protective cover corresponding to the sliders, and the sliders are slidably connected to the sliding grooves.

[0016] The technical effect of adopting the above further solution is: through the sliding connection between the slider and the slide groove, the platform body can be more stable and convenient when lifting.

[0017] As a preferred solution of the present invention, limiting blocks are symmetrically fixed on the outer side wall of the slider, and limiting grooves are provided on the inner side wall of the sliding groove at positions corresponding to the limiting blocks, and the limiting blocks are adapted to the limiting grooves.

[0018] The technical effect of adopting the above further solution is: by adapting the limit block to the limit groove, the slider will not fall out of the inside of the slide groove, and the platform body can be more stable when it is raised and lowered.

[0019] As a preferred solution of the present invention, a hinge door is installed at the top of the platform body near the front, and the hinge door is adapted to the protective cover.

[0020] The technical effect of adopting the above further solution is: through the design of the hinged door, the workers can be prevented from falling when working on the top of the platform body.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] In the utility model, through the design of the card slot, gear bar, electric cylinder, arc-shaped card block, drive motor and transmission gear, when the anti-fall mechanism of a lifting platform is used, it can always remain in a working state without affecting the normal operation of the lifting platform, preventing workers from being injured due to sudden falls, thereby improving the protection of the anti-fall mechanism of the lifting platform for workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an anti-fall mechanism of a lifting platform of the present invention;

[0024] Figure 2 This is a front anatomical diagram of the slot structure of the anti-fall mechanism of a lifting platform of the present utility model;

[0025] Figure 3 This is a side anatomical diagram of the transmission gear structure of the anti-fall mechanism of a lifting platform of the present utility model;

[0026] Figure 4 This is a top-down anatomical diagram of a limit block structure of an anti-fall mechanism of a lifting platform of the present invention.

[0027] Legend: 1. Base; 101. Hydraulic rod; 102. Protective cover; 103. Slot; 104. Gear bar; 105. Universal wheel; 106. Slide; 107. Limit slot; 2. Platform body; 201. Electric cylinder; 202. Telescopic rod; 203. Return spring; 204. Arc-shaped block; 205. Drive motor; 206. Transmission gear; 207. Slider; 208. Limit block; 209. Hinge door. DETAILED DESCRIPTION

[0028] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Example 1

[0033] like Figure 1-4As shown, the utility model provides a technical solution: an anti-fall mechanism for a lifting platform, comprising a base 1, a hydraulic rod 101 symmetrically mounted on the top of the base 1, the hydraulic rod 101 can lift the platform body 2, the platform body 2 is fixed on the output end of the hydraulic rod 101, a protective cover 102 is provided on the top of the base 1 and located on the outer periphery of the platform body 2, the protective cover 102 can protect the periphery of the platform body 2, an electric cylinder 201 is symmetrically mounted near the left and right sides of the interior of the platform body 2, the electric cylinder 201 can drive the telescopic rod 202 to move, the telescopic rod 202 is fixed on the output end of the electric cylinder 201, the outer side of the telescopic rod 202 is provided with a return spring 203, the telescopic rod 202 and the return spring 203 cooperate with each other The arc-shaped block 204 can be inserted into the inside of the slot 103. The arc-shaped block 204 is fixed to the end of the telescopic rod 202 away from the electric cylinder 201. A slot 103 is provided on the inner wall of the protective cover 102 corresponding to the arc-shaped block 204. A driving motor 205 is installed at the bottom of the platform body 2 near the back. The driving motor 205 can drive the transmission gear 206 to rotate to assist the platform body 2 in lifting and lowering. The transmission gear 206 can also be locked by a brake so that the transmission gear 206 can cooperate with the gear bar 104 to support the platform body 2. A transmission gear 206 is installed on the output end of the driving motor 205, and a gear bar 104 is fixed on the inner wall of the protective cover 102 corresponding to the transmission gear 206.

[0034] Example 2

[0035] like Figure 1-4 As shown, the base 1 and the platform body 2 are both made of stainless steel, and the protective cover 102 is made of aluminum alloy. The base 1 and the platform body 2 made of stainless steel are hard enough to provide a good support, while the protective cover 102 made of aluminum alloy is light in weight and high in strength, which can effectively reduce the weight of the device, making the device more convenient to transport.

[0036] Universal wheels 105 are fixedly installed near the corners of the bottom of the base 1. The universal wheels 105 are designed with a lockable structure. The universal wheels 105 with a lockable structure make it more convenient to move or fix the device when it needs to be moved.

[0037] The arc-shaped block 204 is adapted to the slot 103, and the interior of the slot 103 fits with the arc-shaped block 204. By adapting the arc-shaped block 204 to the slot 103 and fitting the interior of the slot 103 with the arc-shaped block 204, the arc-shaped block 204 can be firmly stuck in the interior of the slot 103 when subjected to a downward force, and can be well removed from the interior of the slot 103 when subjected to an upward force.

[0038] The transmission gear 206 is adapted to the gear bar 104, and the transmission gear 206 is meshed and connected with the gear bar 104. Through the meshing connection between the transmission gear 206 and the gear bar 104, the transmission gear 206 can be limited by the gear bar 104 to prevent the platform body 2 from falling, and can effectively assist the platform body 2 to rise and fall.

[0039] Sliders 207 are symmetrically installed on the outer wall of the platform body 2, and sliding grooves 106 are opened on the inner wall of the protective cover 102 corresponding to the sliders 207. The sliders 207 are slidingly connected to the sliding grooves 106. The sliding connection between the sliders 207 and the sliding grooves 106 makes the platform body 2 more stable and convenient when lifting.

[0040] A limiting block 208 is symmetrically fixed on the outer wall of the slider 207, and a limiting groove 107 is opened on the inner wall of the slide 106 corresponding to the limiting block 208. The limiting block 208 is adapted to the limiting groove 107. By adapting the limiting block 208 to the limiting groove 107, the slider 207 will not fall out from the inside of the slide 106, and can be more stable when the platform body 2 is raised or lowered.

[0041] A hinge door 209 is installed at the top of the platform body 2 near the front. The hinge door 209 is compatible with the protective cover 102. The design of the hinge door 209 can prevent workers from falling when working at the top of the platform body 2.

[0042] The working process of the present utility model is as follows: when using the anti-fall mechanism of a lifting platform, first, when the platform body 2 rises, the arc-shaped clamping block 204 will be clamped into the clamping groove 103 under the action of the telescopic rod 202 and the return spring 203, so that the arc-shaped clamping block 204 can support the platform body 2 through the telescopic rod 202, and the driving motor 205 can also clamp the output end and the transmission gear 206 through the brake, so that the transmission gear 206 can support the platform body 2 through the gear bar 104 to prevent the platform body 2 from falling. During the normal lifting operation of the platform body 2, the arc-shaped block 204 can be sequentially inserted into different slots 103, and the driving motor 205 can also drive the transmission gear 206 to rotate and cooperate with the gear bar 104 to assist the platform body 2 in lifting, thereby avoiding the anti-fall mechanism from reacting too slowly and causing injuries to the staff. Compared with the anti-fall mechanism of the existing lifting platform, it can remain in working condition without affecting the normal operation of the lifting platform, preventing the staff from being injured due to sudden falls, and improving the protection of the lifting platform's anti-fall mechanism for the staff.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fall prevention mechanism for a lifting platform, comprising a base (1), characterized in that: A hydraulic rod (101) is symmetrically mounted on the top of the base (1), a platform body (2) is fixed on the output end of the hydraulic rod (101), a protective cover (102) is provided on the top of the base (1) and on the outer periphery of the platform body (2), an electric cylinder (201) is symmetrically mounted near the left and right sides of the inside of the platform body (2), a telescopic rod (202) is fixed on the output end of the electric cylinder (201), and a return spring (203) is provided on the outer side of the telescopic rod (202). An arc-shaped clamping block (204) is fixed to one end of the telescopic rod (202) away from the electric cylinder (201), a clamping slot (103) is provided on the inner side wall of the protective cover (102) at a position corresponding to the arc-shaped clamping block (204), a driving motor (205) is installed at the bottom of the platform body (2) near the back, a transmission gear (206) is installed on the output end of the driving motor (205), and a gear bar (104) is fixed on the inner side wall of the protective cover (102) at a position corresponding to the transmission gear (206).

2. The anti-fall mechanism of a lifting platform according to claim 1, characterized in that: The base (1) and the platform body (2) are both made of stainless steel, and the protective cover (102) is made of aluminum alloy.

3. The anti-fall mechanism of a lifting platform according to claim 1, characterized in that: Universal wheels (105) are fixedly mounted on the bottom of the base (1) near the corners, and the universal wheels (105) are designed to be lockable.

4. The anti-fall mechanism of a lifting platform according to claim 1, characterized in that: The arc-shaped clamping block (204) is adapted to the clamping slot (103), and the interior of the clamping slot (103) is fitted with the arc-shaped clamping block (204).

5. The anti-fall mechanism of a lifting platform according to claim 1, characterized in that: The transmission gear (206) is adapted to the gear bar (104), and the transmission gear (206) is meshedly connected to the gear bar (104).

6. The anti-fall mechanism of a lifting platform according to claim 1, characterized in that: Slide blocks (207) are symmetrically mounted on the outer side wall of the platform body (2), and slide grooves (106) are provided on the inner side wall of the protective cover (102) at locations corresponding to the slide blocks (207), and the slide blocks (207) are slidably connected to the slide grooves (106).

7. The anti-fall mechanism of a lifting platform according to claim 6, characterized in that: A limiting block (208) is symmetrically fixed on the outer wall of the slider (207), and a limiting groove (107) is provided on the inner wall of the slide groove (106) at a position corresponding to the limiting block (208), and the limiting block (208) is adapted to the limiting groove (107).

8. The anti-fall mechanism of a lifting platform according to claim 1, characterized in that: A hinge door (209) is installed at the top of the platform body (2) near the front, and the hinge door (209) is compatible with the protective cover (102).

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