Ladder locking device for stably loading materials

Abstract

The utility model discloses an elevator locking device for steadily loading materials, which comprises a locking device arranged at the bottom of an elevator car and a positioning block arranged on the inner wall of an elevator shaft, the locking device comprises a mounting beam, and two ends of the mounting beam are respectively provided with a telescopic driving mechanism and a locking rod. An output shaft of the telescopic driving mechanism is connected with the lock rod and drives the lock rod to stretch out and draw back, a positioning groove is formed in the positioning block, and the lock rod can be switched between a locking state of stretching into the positioning groove and an unlocking state of retracting from the positioning groove through the telescopic action. The elevator locking device for stably loading the materials can improve the stability of an elevator, eliminate the hidden danger of goods dumping and damage, and improve the loading and unloading efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator locking device for stable material loading. Background Art

[0002] Freight elevators are large-scale electromechanical equipment with mechatronics, widely used in industrial plants, shopping malls, warehouses and docks, and can meet the transportation needs of large goods. However, when existing freight elevators hover on the floors for loading and unloading, most of them require forklifts to enter the car to load and unload goods, resulting in a height difference between the car door sill and the floor door sill, which affects the entry and exit of forklifts and poses a hidden danger of cargo tipping and damage during the loading and unloading process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an elevator locking device for stable material loading that can improve the stability of the elevator, eliminate the hidden dangers of cargo tipping and damage, and improve the efficiency of loading and unloading.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A locking device for elevators for smooth material loading comprises a locking device arranged on the elevator car floor and a positioning block arranged on the inner wall of the elevator shaft, the locking device comprising a mounting beam, a telescopic drive mechanism and a locking rod being respectively provided at both ends of the mounting beam, the output shaft of the telescopic drive mechanism being connected to the locking rod and driving the locking rod to perform a telescopic action, a positioning slot being provided on the positioning block, and the locking rod being able to switch between a locked state in which the locking rod is extended into the positioning slot and an unlocked state in which the locking rod is retracted from the positioning slot through a telescopic action.

[0006] As a further improvement of the above technical solution:

[0007] The mounting beam is provided with a guide mechanism for enabling the locking rod to move only in the axial direction.

[0008] The guide mechanism includes a guide block, a guide through hole is formed on the guide block, and the locking rod is passed through the guide through hole.

[0009] A travel switch assembly for limiting the telescopic travel of the locking rod is provided on the mounting beam.

[0010] The travel switch assembly includes a first travel switch and a second travel switch fixedly arranged on the mounting beam, and a shift rod fixedly arranged on the locking rod. The locking rod performs a telescopic action to drive the shift rod to contact the first travel switch or the second travel switch.

[0011] The positioning block is provided with a positioning switch for detecting the position of the locking rod.

[0012] A chamfered portion is provided on one end of the locking rod close to the positioning block.

[0013] The telescopic driving mechanism is an electric push rod.

[0014] The mounting beam is an I-shaped structure as a whole.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The elevator locking device of the present invention for stable material loading comprises a locking device arranged on the elevator car bottom and a positioning block arranged on the inner wall of the elevator shaft. After the elevator reaches the target floor, when the locking device needs to be used, the locking button is activated, and the telescopic driving mechanism drives the locking rod to extend outward into the positioning groove, so that the elevator is in a locked state, thereby fixing the position of the elevator itself. During the loading and unloading process, the elevator can be prevented from forming a large height difference in the vertical direction, thereby improving the stability of the elevator, eliminating the hidden danger of cargo tipping and damage, and being conducive to improving the loading and unloading efficiency. After the loading and unloading is completed, the unlocking button is activated, and the telescopic driving mechanism drives the locking rod to retract inward and exit the positioning groove. The elevator is in an unlocked state, and the elevator can be started and operated at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the assembly of the ladder locking device for smooth material loading.

[0018] Figure 2 Schematic diagram of the structure of the ladder locking device for smooth material loading.

[0019] Figure 3 A bottom view of the partial structure of the ladder locking device for stable material loading.

[0020] Figure 4 This is an enlarged view of part of the structure of the ladder locking device used to stabilize material loading.

[0021] Figure 5 This is an enlarged view of the positioning block and locking rod.

[0022] Legend:

[0023] 100. Elevator; 200. Elevator shaft; 1. Locking device; 101. Mounting beam; 102. Telescopic drive mechanism; 103. Locking rod; 1031. Chamfered portion; 2. Positioning block; 201. Positioning groove; 3. Guide mechanism; 301. Guide block; 302. Guide through hole; 4. Travel switch assembly; 401. First travel switch; 402. Second travel switch; 403. Drag lever; 5. Positioning switch. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 4 As shown, the elevator locking device for smooth material loading in this embodiment includes a locking device 1 arranged on the bottom of the elevator 100 and a positioning block 2 arranged on the inner wall of the elevator shaft 200. The locking device 1 includes a mounting beam 101, and a telescopic drive mechanism 102 and a locking rod 103 are respectively provided at both ends of the mounting beam 101. The output shaft of the telescopic drive mechanism 102 is connected to the locking rod 103 and drives the locking rod 103 to perform a telescopic action. A positioning groove 201 is provided on the positioning block 2, and the locking rod 103 can be converted between a locked state extending into the positioning groove 201 and an unlocked state retracted from the positioning groove 201 through a telescopic action. The elevator locking device for stable material loading includes a locking device 1 arranged on the bottom of the elevator 100 and a positioning block 2 arranged on the inner wall of the elevator shaft 200. After the elevator 100 reaches the target floor, when the locking device 1 needs to be used, the locking button is activated, and the telescopic drive mechanism 102 drives the locking rod 103 to extend outward into the positioning groove 201, so that the elevator 100 is in a locked state, thereby fixing the position of the elevator 100 itself. During the loading and unloading process, it can prevent the elevator 100 from forming a large height difference in the vertical direction, improve the stability of the elevator 100, eliminate the hidden danger of cargo tipping and damage, and help improve the loading and unloading efficiency. After the loading and unloading is completed, the unlocking button is activated, and the telescopic drive mechanism 102 drives the locking rod 103 to retract inward and exit the positioning groove 201. The elevator 100 is in an unlocked state, and the elevator 100 can start and run at this time.

[0026] Preferably, a guide mechanism 3 is provided on the mounting beam 101 for enabling the locking rod 103 to move only in the axial direction.

[0027] Preferably, the guide mechanism 3 includes a guide block 301 having a guide through-hole 302 defined therein, through which the locking rod 103 is disposed. In this embodiment, the guide mechanism 3 includes guide blocks 301 disposed at both ends of the mounting beam 101, each having a guide through-hole 302 defined therein, through which the locking rod 103 is disposed. This allows the locking rod 103 to move only in the axial direction, thereby improving the linearity of the locking rod 103. Furthermore, the guide blocks 301 can withstand a certain amount of lateral pressure, thereby maintaining the stability of the locking rod 103 when the freight elevator is loaded with materials.

[0028] Preferably, a travel switch assembly 4 for limiting the telescopic travel of the locking rod 103 is provided on the mounting beam 101 .

[0029] Preferably, the travel switch assembly 4 includes a first travel switch 401 and a second travel switch 402 fixedly arranged on the mounting beam 101, and a lever 403 fixedly arranged on the locking rod 103. The locking rod 103 performs a telescopic action to drive the lever 403 to contact the first travel switch 401 or the second travel switch 402. In this embodiment, the first travel switch 401 and the second travel switch 402 are fixedly arranged on the mounting beam 101 through a connecting plate, and a shift rod 403 is fixedly arranged on the output shaft of the locking rod 103 or the telescopic drive mechanism 102. The locking rod 103 extends outward. When the shift rod 403 touches the first travel switch 401, the contact of the first travel switch 401 is actuated to realize circuit switching, and the telescopic drive mechanism 102 stops moving; the locking rod 103 retracts inward. When the shift rod 403 touches the second travel switch 402, the contact of the second travel switch 402 is actuated to realize circuit switching, and the telescopic drive mechanism 102 stops moving, thereby achieving the function of limiting the telescopic travel of the locking rod 103. It has the advantages of simple structure, easy maintenance, high reliability and low cost.

[0030] Preferably, the positioning block 2 is provided with a positioning switch 5 for detecting the position of the locking rod 103. In this embodiment, the positioning switch 5 is fixedly mounted on the wall of the positioning block 2 near the locking device 1, and is used to detect whether the locking rod 103 is located in the positioning slot 201 and to feed back a corresponding signal to the elevator operation control system. When the locking rod 103 is detected to be located in the positioning slot 201, the elevator operation control system keeps the elevator 100 stationary to prevent the elevator 100 from moving and causing damage to the locking device 1. When the locking rod 103 is detected to be not located in the positioning slot 201, the elevator operation control system can dispatch the elevator 100 normally.

[0031] like Figure 5 As shown, preferably, a chamfered portion 1031 is provided on the end of the locking rod 103 close to the positioning block 2. When the position of the locking rod 103 deviates from the positioning groove 201, the telescopic drive mechanism 102 drives the locking rod 103 to extend outward. At this time, the chamfered portion 1031 will abut against the upper end face or the lower end face of the positioning groove 201, so that the locking rod 103 can be smoothly introduced into the positioning groove 201, preventing the locking device 1 from being damaged due to blocking.

[0032] Preferably, the telescopic drive mechanism 102 is an electric push rod. In this embodiment, the telescopic drive mechanism 102 preferably uses an electric push rod, which has the advantages of strong load capacity, precise control, low noise, and long service life. In other embodiments, the telescopic drive mechanism 102 can also use a gear rack drive, a synchronous belt drive, or other components with reciprocating movement function, and is not limited to this embodiment.

[0033] Preferably, the mounting beam 101 is an I-shaped structure. In this embodiment, the mounting beam 101 is preferably made of I-steel. The I-shaped structure consists of upper and lower flanges and a middle web. When subjected to stress, it can better withstand pressure and shear forces, and has the advantages of good bending resistance, strong load-bearing capacity, and high structural stability.

[0034] In actual application, in order to improve the locking stability, the elevator 100 is equipped with at least two sets of parallel locking devices 1, and four sets of positioning blocks 2 are provided on the inner wall of the elevator shaft 200 corresponding to each floor. The elevator 100 is provided with a locking button and an unlocking button electrically connected to the telescopic drive mechanism 102 and the elevator operation control system. After the elevator 100 hovers at the target floor, when the locking device 1 needs to be used, the locking button is activated, the telescopic drive mechanism 102 drives the locking rod 103 to extend outward into the positioning groove 201, the travel switch assembly 4 detects the travel stroke of the locking rod 103, and the positioning switch 5 detects whether the locking rod 103 is in the locked position. Positioned in the positioning groove 201, when the two positioning switches 5 detect at the same time that they are in place, it is ensured that the elevator is in a locked state. At this time, the elevator operation control system keeps the elevator 100 in a stationary state; after loading and unloading are completed, the unlocking button is activated, and the telescopic drive mechanism 102 drives the locking rod 103 to retract inward and exit the positioning groove 201. The travel switch assembly 4 detects the travel stroke of the locking rod 103, and the positioning switch 5 detects whether the locking rod 103 is positioned in the positioning groove 201. When the two positioning switches 5 detect at the same time that they are not in place, it is ensured that the elevator is in an unlocked state. At this time, the elevator operation control system can normally dispatch the elevator 100, and it is convenient to use.

[0035] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A locking device for stably loading materials, comprising a locking device (1) arranged on the bottom of an elevator (100) and a positioning block (2) arranged on the inner wall of an elevator shaft (200), characterized in that: The locking device (1) comprises a mounting beam (101), and a telescopic drive mechanism (102) and a locking rod (103) are respectively provided at both ends of the mounting beam (101). The output shaft of the telescopic drive mechanism (102) is connected to the locking rod (103) and drives the locking rod (103) to perform a telescopic action. A positioning groove (201) is provided on the positioning block (2), and the locking rod (103) can be switched between a locked state in which it is extended into the positioning groove (201) and an unlocked state in which it is retracted from the positioning groove (201) through a telescopic action.

2. The ladder locking device for stable material loading according to claim 1, characterized in that: The mounting beam (101) is provided with a guide mechanism (3) for enabling the locking rod (103) to move only in the axial direction.

3. The ladder locking device for stable material loading according to claim 2, characterized in that: The guide mechanism (3) comprises a guide block (301), a guide through hole (302) is provided on the guide block (301), and the locking rod (103) is passed through the guide through hole (302).

4. The ladder locking device for stable material loading according to claim 1, characterized in that: A travel switch assembly (4) for limiting the telescopic travel of the locking rod (103) is provided on the mounting beam (101).

5. The ladder locking device for stable material loading according to claim 4, characterized in that: The travel switch assembly (4) comprises a first travel switch (401) and a second travel switch (402) fixedly mounted on the mounting beam (101), and a shifting rod (403) fixedly mounted on the locking rod (103); the locking rod (103) performs a telescopic movement to drive the shifting rod (403) to contact the first travel switch (401) or the second travel switch (402).

6. The ladder locking device for stable material loading according to claim 1, characterized in that: The positioning block (2) is provided with a positioning switch (5) for detecting the position of the locking rod (103).

7. The ladder locking device for stable material loading according to claim 1, characterized in that: A chamfered portion (1031) is provided on one end of the locking rod (103) close to the positioning block (2).

8. The ladder locking device for stable material loading according to claim 1, characterized in that: The telescopic driving mechanism (102) is an electric push rod.

9. The ladder locking device for stable material loading according to claim 1, characterized in that: The mounting beam (101) is an I-shaped structure as a whole.

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