Lifting platform guardrail

Abstract

The utility model relates to the technical field of lifters, and particularly discloses a lifting platform guardrail which comprises a main body connected with a lifting platform, one end of the main body is of an opening structure, supporting fences connected with the main body and the lifting platform are arranged on the two sides of the opening, an entrance is formed between the two supporting fences, and protective doors are arranged on the inner sides of the supporting fences in a sliding fit mode. The length of the protective door is larger than the distance between the two supporting fences, a receding opening is formed between the supporting fences and the body, the tail end of the protective door extends out of the receding opening after the protective door is opened, a handle is connected to the front end of the protective door, a locking plate is arranged on the handle, and locking pieces matched with the locking plate are arranged on the two supporting fences. The protective door adopts a sliding opening and closing mode, so that the risk of flapping a worker when the rotary protective door rotates is prevented, and meanwhile, the internal space is prevented from being occupied; and the protective door is fixed through the locking piece after being opened and closed, so that the stability and safety of the protective door in the opening and closing state are ensured, and the use and protection safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting platform technology, specifically a lifting platform guardrail. Background Technology

[0002] The guardrails of a lifting platform are not only a physical protective barrier, but also a dual guarantee of legal compliance and operational safety. Their design needs to be flexibly adjusted according to the working scenario and strictly follow technical standards such as impact resistance and interlocking control.

[0003] To ensure personnel can smoothly enter the lifting platform, safety doors are usually installed on the guardrails. Most current safety doors are sliding doors, such as the lifting device with safety protection function disclosed in patent CN117658032A, where the safety door is rotatably connected to the guardrail, making opening and closing convenient. However, during use, especially when personnel are entering or exiting after the sliding door is opened, the safety door is prone to rotating, causing collisions and posing a certain danger to personnel climbing the lifting platform. Utility Model Content

[0004] This utility model addresses the aforementioned shortcomings of existing technologies by providing a lifting platform guardrail. The protective door adopts a sliding opening and closing mechanism, preventing the risk of workers being hit when the rotating protective door is turned, while also avoiding the occupation of internal space. The protective door is fixed by locks after opening and closing, ensuring stability and safety in the open and closed states, and improving the safety of use and protection.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting platform guardrail includes a main body connected to the lifting platform. One end of the main body is open, and support railings connected to the main body and the lifting platform are provided on both sides of the opening. An entrance / exit is located between the two support railings. A protective door is slidably fitted on the inner side of the support railing. The length of the protective door is greater than the distance between the two support railings. A clearance opening is provided between the support railing and the main body. After the protective door is opened, its end extends out from the clearance opening. A handle is connected to the front end of the protective door. A locking plate is provided on the handle. Locking devices that cooperate with the locking plate are provided on both support railings.

[0007] Preferably, the side wall of the support rail is provided with a support plate, the lock includes a support rod, the support rod is located above the support plate, the lower end of the support rod is connected to a guide rod that penetrates the support plate, the lower end of the guide rod is provided with a limiting block, a first spring is connected between the guide rod and the support plate, one end of the support rod is connected to a locking block, the other end of the support rod is connected to a top rod, the upper end of the top rod is connected to a pressure rod, and the lower end of the lock plate is provided with a locking groove that cooperates with the locking block.

[0008] Preferably, both the locking plate and the pressure bar are located above the support rail.

[0009] Preferably, the upper end of the locking block is an inclined surface.

[0010] Preferably, the inner side of the support rail is connected to a clamping rod, the protective door is located between the support rail and the clamping rod, the side wall of the support rail is provided with a guide wheel, the upper and lower ends of the protective door are provided with guide grooves that cooperate with the guide wheel, and the bottom of the front end of the protective door is provided with a support wheel.

[0011] Preferably, the side wall of the main body is provided with a buffer component that cooperates with the front end of the protective door.

[0012] Preferably, the buffer includes a support cylinder connected to the main body, a telescopic rod connected inside the support cylinder, a buffer block at the end of the telescopic rod, and a second spring connecting the buffer block to the main body.

[0013] Preferably, the buffer block is made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The protective door of this utility model adopts a sliding opening and closing method, which prevents the risk of workers being hit when the rotating protective door is turned, and avoids occupying internal space; the protective door is fixed by locks after opening and closing, ensuring the stability and safety of the protective door in the open and closed state, and improving the safety of use and protection.

[0016] 2. This utility model places the lock plate on the handle and above the support rail, so that the lock plate can also protect the hand and prevent the hand from being pinched when opening and closing the protective door, thus improving the safety of use.

[0017] 3. This utility model is equipped with a buffer to prevent rigid collisions when the protective door is closed. At the same time, the buffer block improves the stability of the protective door after it is closed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is the front view after the protective door is closed;

[0021] Figure 4 This is the front view after the protective door is opened;

[0022] Figure 5 This is a structural diagram of the protective door;

[0023] Figure 6This is a structural diagram of the lock component;

[0024] Figure 7 for Figure 3 A magnified structural diagram at point A;

[0025] Figure 8 This is a schematic diagram of the buffer component.

[0026] In the diagram: 1-Main body; 101-Support plate; 102-First spring; 103-Support railing; 104-Guide wheel; 105-Leaving opening; 106-Clamping rod; 2-Protective door; 201-Guide groove; 202-Handle; 203-Support wheel; 3-Locking component; 301-Pressure rod; 302-Top rod; 303-Guide rod; 304-Limiting block; 305-Support rod; 306-Locking block; 4-Locking plate; 401-Locking groove; 5-Buffer component; 501-Support cylinder; 502-Second spring; 503-Telescopic rod; 504-Buffer block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 As shown, a lifting platform guardrail includes a main body 1 connected to the lifting platform. The main body 1 has a three-sided guardrail structure with an opening on one side. Figure 3 As shown, support railings 103 connected to the main body 1 and the lifting platform are provided on both sides of the opening. The support railings 103 and the main body 1 are an integral structure. The entrance and exit are between the two support railings 103. A protective door 2 is slidably fitted on the inner side of the support railings 103. The protective door 2 is a sliding door.

[0029] like Figure 2 As shown, the length of the protective door 2 is greater than the distance between the two support rails 103, and a clearance opening 105 is provided between the support rails 103 and the main body 1, as shown. Figure 4 As shown, after the protective door 2 is opened, its end extends out from the relief opening 105. A handle 202 is connected to the upper front end of the protective door 2. A locking plate 4 is provided on the handle 202. Both support rails 103 are provided with locking parts 3 that cooperate with the locking plate 4. The protective door 2 can be fixed by the cooperation of the locking plate 4 and the locking parts 3 in both the open and closed states.

[0030] In this application, the lock 3 is disposed on the outside of the support railing 103, and a support plate 101 is provided on the side wall of the support railing 103, such as... Figure 6As shown, the locking component 3 includes a support rod 305, which is located above the support plate 101. The lower end of the support rod 305 is connected to a guide rod 303 that penetrates the support plate 101. A limiting block 304 is provided at the lower end of the guide rod 303. A first spring 102 is connected between the guide rod 303 and the support plate 101, and the first spring 102 is sleeved on the guide rod 303. One end of the support rod 305 is connected to a locking block 306, which faces upwards. The other end of the support rod 305 is connected to an upward-facing push rod 302. The upper end of the push rod 302 is connected to a pressure rod 301. Figure 7 As shown, the lower end of the lock plate 4 is provided with a lock groove 401 that cooperates with the lock block 306. The push rod 301 can press down the support rod 305, and the support rod 305 drives the lock block 306 to move downward, so that the lock block 306 is disengaged from the lock groove 401, thereby unlocking.

[0031] Both the locking plate 4 and the pressure bar 301 are located above the support railing 103. The locking plate 4 also has a protective function. When a person grips the handle 202, the locking plate 4 can block the lower part of the hand to prevent the hand from being pinched when sliding the protective door 2.

[0032] The upper end of the locking block 306 is an inclined surface. When the locking plate 4 slides horizontally with the protective door 2, it can push the locking block 306 downward along the inclined surface. When the locking groove 401 is above the locking block 306, the locking block 306 will automatically spring into the locking groove 401 for locking and fixing under the action of the first spring 102.

[0033] A clamping rod 106 is connected to the inner side of the support railing 103. The protective door 2 is located between the support railing 103 and the clamping rod 106. Guide wheels 104 are provided on the side wall of the support railing 103 (the support railing 103 that still supports and guides the protective door 2 after it is opened). Figure 5 As shown, the upper and lower ends of the protective door 2 are provided with guide grooves 201 that cooperate with the guide wheel 104. The two ends of the guide groove 201 are closed structures, which can guide the protective door 2 and limit its movement. The front bottom of the protective door 2 is provided with a support wheel 203.

[0034] To prevent rigid collisions when the protective door 2 closes, a buffer member 5 is provided on the side wall of the main body 1 to cooperate with the front end of the protective door 2. Figure 8 As shown, the buffer 5 includes a support cylinder 501 connected to the main body 1. A telescopic rod 503 is connected inside the support cylinder 501. A buffer block 504 is provided at the end of the telescopic rod 503. A second spring 502 is connected between the buffer block 504 and the main body 1. The buffer block 504 is made of rubber. When the protective door 2 is closed, it first contacts the buffer block 504, and then slowly compresses the second spring 502 until the lock plate 4 and the lock 3 cooperate. Under the push of the buffer block 504, the stability of the protective door 2 after it is closed can also be improved.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A guardrail for a lifting platform, comprising a main body connected to the lifting platform, characterized in that: One end of the main body is an open structure, and support railings connected to the main body and the lifting platform are provided on both sides of the opening. The two support railings are an entrance and exit. A protective door is slidably fitted on the inner side of the support railing. The length of the protective door is greater than the distance between the two support railings. A clearance opening is provided between the support railing and the main body. After the protective door is opened, its end extends out from the clearance opening. A handle is connected to the front end of the protective door. A locking plate is provided on the handle. Both support railings are provided with locks that cooperate with the locking plate.

2. The lifting platform guardrail as described in claim 1, characterized in that: The support railing has a support plate on its side wall. The lock includes a support rod located above the support plate. The lower end of the support rod is connected to a guide rod that passes through the support plate. The lower end of the guide rod is provided with a limiting block. A first spring is connected between the guide rod and the support plate. One end of the support rod is connected to a locking block, and the other end of the support rod is connected to a top rod. The upper end of the top rod is connected to a pressure rod. The lower end of the lock plate is provided with a locking groove that cooperates with the locking block.

3. The lifting platform guardrail as described in claim 2, characterized in that: Both the locking plate and the pressure bar are located above the support railing.

4. A lifting platform guardrail as described in claim 2, characterized in that: The upper end of the locking block is an inclined surface.

5. A lifting platform guardrail as described in claim 1, characterized in that: The inner side of the support rail is connected to a clamping rod, the protective door is located between the support rail and the clamping rod, the side wall of the support rail is provided with a guide wheel, the upper and lower ends of the protective door are provided with guide grooves that cooperate with the guide wheel, and the bottom of the front end of the protective door is provided with a support wheel.

6. A lifting platform guardrail as described in claim 1, characterized in that: The main body has a buffer component on its side wall that cooperates with the front end of the protective door.

7. A lifting platform guardrail as described in claim 6, characterized in that: The buffer component includes a support cylinder connected to the main body, a telescopic rod connected inside the support cylinder, a buffer block at the end of the telescopic rod, and a second spring connecting the buffer block to the main body.

8. A lifting platform guardrail as described in claim 7, characterized in that: The buffer block is made of rubber.

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