Compact folding telescopic escalator

Abstract

The utility model belongs to the technical field of mining machinery, and particularly relates to a compact folding type telescopic ladder which is detachably mounted on equipment, in one state, a main ladder and an auxiliary ladder relatively slide until a second constraint hole in the upper end part of the auxiliary ladder is located at a first constraint hole, and the main ladder and the auxiliary ladder are fixed. A pin shaft is inserted into a second constraint hole and a first constraint hole in the upper end part of the secondary ladder, and at the moment, the compact folding telescopic ladder is in an unfolded state; in one state, the main ladder body and the auxiliary ladder body slide relatively till the second restraining hole in the lower end of the auxiliary ladder body is located at the position of the first restraining hole, pin shafts are inserted into the second restraining hole and the first restraining hole in the lower end of the auxiliary ladder body in a penetrating mode, and the compact folding type telescopic escalator is in a folded state. A scheme for arranging the escalator can be provided for equipment with a relatively compact structure, and the occupied space is small; if the auxiliary ladder can be arranged on an access door of an electric cabinet of a digging and anchoring machine, when the electric cabinet of the machine is overhauled, the auxiliary ladder can stretch out and draw back into the main ladder, and the overhaul work of electrical facilities in the electric cabinet is not affected due to the compact structure and the integration of the auxiliary ladder and the access door. Compared with a traditional escalator for people on equipment, the escalator has the advantages that the space of the equipment can be saved, and the overall dimension of the whole equipment can be reduced as much as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining machinery, and in particular relates to a compact folding telescopic escalator. Background Art

[0002] In the existing technology, coal mine tunnel excavation takes into account economic factors and geological conditions, and generally the tunnel width is within five meters and the height is within four meters. With the application of mechanized and intelligent equipment in coal mine tunnels, tunneling, bolt support, and transportation equipment need to be used in the tunnel. At this time, the equipment is required to be as short and wide as possible and as compact as possible on the basis of achieving the required functions.

[0003] Generally speaking, the ladders of tunneling, bolting and transport equipment are fixed on the corresponding equipment in an integrated manner, such as Figure 1 As shown, the device 100 and the escalator 101, due to the overall width of the escalator 101, a certain space of the device 100 needs to be occupied or the device's external dimensions need to be increased, making the structure of the device 100 relatively non-compact in length and width directions. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a compact foldable telescopic escalator, which solves the problem that the escalator of the equipment in the prior art is fixed on the corresponding equipment in an integrated manner, and due to the overall width of the escalator, it is necessary to occupy a certain space of the equipment or increase the external dimensions of the equipment, making the structure of the equipment relatively non-compact in length and width directions.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A compact foldable telescopic escalator, which can be detachably mounted on a device, comprises: a main ladder, the main ladder having a main ladder support side beam along the extension direction of the main ladder, the inner side of the main ladder support side beam having a slide groove along the extension direction of the main ladder, and the lower end of the main ladder support side beam having a first restraining hole connected to the slide groove;

[0007] Auxiliary ladder, the auxiliary ladder has an auxiliary ladder supporting side beam along the extension direction of the auxiliary ladder, the auxiliary ladder supporting side beam is in the slide groove and moves along the slide groove, and the upper end and the lower end of the auxiliary ladder are both provided with a second restraining hole;

[0008] In one state, the main ladder and the auxiliary ladder slide relative to each other until the second restraint hole at the upper end of the auxiliary ladder is at the position of the first restraint hole, and a pin is inserted into the second restraint hole and the first restraint hole at the upper end of the auxiliary ladder, and the compact foldable telescopic escalator is in an unfolded state;

[0009] In one state, the main ladder and the auxiliary ladder slide relative to each other until the second constraint hole at the lower end of the auxiliary ladder is at the position of the first constraint hole, and a pin is inserted into the second constraint hole and the first constraint hole at the lower end of the auxiliary ladder, and the compact foldable telescopic escalator is in a folded state.

[0010] Furthermore, the equipment is an anchor mining machine, and the compact foldable telescopic escalator is detachably mounted on an inspection door of an electric control box of the anchor mining machine.

[0011] Furthermore, at least one fixing block is installed on the side of the main ladder close to the equipment, and a detachable connection is formed between the fixing block and the equipment;

[0012] Optionally, the detachable connection method is bolt fastening;

[0013] Optionally, the fixing block has at least one fixing hole, and a bolt passes through the fixing hole to be detachably fixed to the device housing.

[0014] Furthermore, there are two main ladder supporting side beams on the main ladder, and the two main ladder supporting side beams are in opposition to each other. The inner sides of the two main ladder supporting side beams have sliding grooves along the extension direction of the main ladder, and the width of the auxiliary ladder is less than the maximum straight-line distance between the two opposing sliding grooves, and greater than the minimum straight-line distance between the two opposing sliding grooves.

[0015] Furthermore, a bending portion is formed at one end of the pin shaft; a nut is threadedly connected on one end of the pin shaft passing through the first constraint hole, and the nut locks the pin shaft.

[0016] Furthermore, the upper end of the main ladder is provided with a hanging frame extending toward the equipment, the hanging frame is hooked on the equipment, and the hanging frame is provided with a handrail;

[0017] Optionally, there are two armrests on the hanging frame, and the two armrests are in a corresponding state.

[0018] Furthermore, the main ladder is provided with a plurality of main ladder steps which are arranged at equal distances. The main ladder steps are located on the side of the main ladder close to the equipment and extend in a direction close to the equipment.

[0019] Furthermore, the main ladder has a plurality of main ladder steps arranged at equal distances. The main ladder steps are located on the side of the main ladder close to the equipment and extend toward the equipment. The shortest distance between the main ladder steps and the equipment is shorter than the shortest distance between the fixed blocks and the equipment.

[0020] Furthermore, a secondary ladder pedal is provided at the top end of the secondary ladder, and the secondary ladder pedal extends in a direction away from the equipment.

[0021] Furthermore, a limit plate is provided on the bottom end surface of the main ladder, and the orthographic projection of the auxiliary ladder step and the orthographic projection of the limit plate at least partially overlap.

[0022] Furthermore, the auxiliary ladder has a plurality of footrest crossbars distributed at equal intervals, the footrest crossbars are hollow, and the hollow through holes of the footrest crossbars at the uppermost and lowermost ends of the auxiliary ladder serve as the second constraint holes. The principle and effect of the above technical solution are as follows:

[0023] Beneficial effects of the utility model:

[0024] The compact foldable telescopic escalator can be unfolded and folded by relative sliding between the main ladder and the auxiliary ladder; at the same time, it can be detachably installed on the equipment. For manufacturing enterprises, this application has a simple structure and low manufacturing cost. When it is installed on the equipment, it can save a lot of space compared to the original integrated escalator design for the equipment, and the equipment can be designed to be more compact, which can reduce the difficulties caused by collisions and interferences between equipment during equipment call and production line layout for equipment users. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the product of the embodiment of the utility model and the existing escalator installed in the existing equipment;

[0027] Figure 2 It is a schematic diagram of an embodiment of the utility model installed on a device;

[0028] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the main ladder of an embodiment of the utility model;

[0030] Figure 5 It is an embodiment of the utility model Figure 4 Schematic diagram of the local structure;

[0031] Figure 6 This is a schematic diagram of the auxiliary ladder structure of an embodiment of the utility model;

[0032] Figure 7 It is a schematic diagram of the pin structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] According to the concept of this application, Figures 1 to 7 The embodiment of a compact foldable telescopic escalator 102 that can be applied to equipment 100 is described, wherein the equipment 100 is, for example, a tunneling type, bolt support type, or transportation type equipment 100; specifically, the compact foldable telescopic escalator 102 is constructed as a split structure, which has a main ladder 1 and an auxiliary ladder 2. The compact foldable telescopic escalator can be unfolded and folded by relative sliding between the main ladder 1 and the auxiliary ladder 2. If it is detachably installed on the equipment 100, for the manufacturing enterprise of this application, the structure is simple and the manufacturing cost is low. When it is installed on the equipment 100, compared with the original integrated escalator design for the equipment 100, a lot of space can be saved, and the equipment 100 can be designed to be more compact, which can reduce the difficulties caused by collisions and interferences between the equipment 100 when the equipment 100 is called and the production line is arranged for the unit using the equipment 100.

[0035] A compact foldable telescopic escalator 102 is detachably mounted on the device 100, comprising: a main ladder 1, the main ladder 1 having a main ladder support side beam 11 along the extension direction of the main ladder 1, the main ladder support side beam 11 having a slide groove 110 along the extension direction of the main ladder 1 on the inner side, and the main ladder support side beam 11 having a first restraining hole 111 in communication with the slide groove 110 at the lower end thereof;

[0036] Auxiliary ladder 2, the auxiliary ladder 2 has an auxiliary ladder supporting side beam 21 along the extension direction of the auxiliary ladder 2, the auxiliary ladder supporting side beam 21 is in the slide groove 110, and moves along the slide groove 110, and the upper end and the lower end of the auxiliary ladder 2 are both provided with a second restraining hole 200;

[0037] In one state, the main ladder 1 and the auxiliary ladder 2 slide relative to each other until the second restraining hole 200 at the upper end of the auxiliary ladder 2 is at the position of the first restraining hole 111, and the pin 31 is inserted into the second restraining hole 200 and the first restraining hole 111 at the upper end of the auxiliary ladder 2, and the compact foldable telescopic escalator is in an unfolded state;

[0038] In one state, the main ladder 1 and the auxiliary ladder 2 slide relative to each other until the second constraint hole 200 at the lower end of the auxiliary ladder 2 is at the position of the first constraint hole 111, and the pin shaft 31 is inserted into the second constraint hole 200 and the first constraint hole 111 at the lower end of the auxiliary ladder 2, and the compact foldable telescopic escalator is in a folded state.

[0039] In the present application, the equipment 100 can be a tunneling type, anchor support type, or transportation type equipment 100. For example, in the diagram of the application, the equipment 100 is an anchor mining machine, and the compact foldable telescopic escalator can be detachably installed on the maintenance door of the electrical control box of the anchor mining machine. When the electrical control box of the machine is being repaired, the auxiliary ladder 2 can be retracted inside the main ladder 1. Because of its compact structure and the integration of the maintenance door, it does not affect the maintenance work of the electrical facilities in the electrical control box. Compared with the traditional escalator on the equipment 100, its biggest advantage is that it can save space for the equipment 100 and minimize the overall dimensions of the entire equipment 100.

[0040] Regarding the disassembly method, the present application and the device 100 are in a detachable manner, such as a detachable connection that uses screws, bolts, splines, wedge pins, etc. to fix the parts together; this connection method can be disassembled during maintenance without damaging the parts; but the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and properly tightened; in the illustration of the present application, it is shown that at least one fixing block 12 is installed on the side of the main ladder 1 close to the device 100, and a detachable connection is opened between the fixing block 12 and the device 100; detachable The detachable connection method is bolt fastening; the fixing block 12 has at least one fixing hole 120, and the bolt passes through the fixing hole 120 and is detachably fixed to the housing of the device 100; that is, in a case shown in the present application, the detachable method is achieved by bolts; in the figure, it is also shown that the fixing blocks 12 are distributed in multiple equal intervals on the main ladder support side beams 11, so as to utilize multiple points to be detachably fixed to the device 100, thereby improving the degree of fixation between the compact foldable telescopic escalator and the device 100, and improving the stability of the compact foldable telescopic escalator during use.

[0041] Of course, the slide groove 110 in the present application, as shown in the figure, is formed in terms of a forming method of the slide groove 110. In some cases, the slide groove 110 is formed by removing material; of course, in some cases, the slide groove 110 is formed by a surface wrapped by the cross-section of the profile of the main ladder support side beam 11 itself, such as the profile of the main ladder support side beam 11 itself is channel steel.

[0042] In the illustration of the present application, there are two main ladder supporting side beams 11 on the main ladder 1, and the two main ladder supporting side beams 11 are in opposition to each other. The inner sides of the two main ladder supporting side beams 11 have a slide groove 110 along the extension direction of the main ladder 1, and the width of the auxiliary ladder 2 is less than the maximum straight-line distance between the two opposing slide grooves 110, and greater than the minimum straight-line distance between the two opposing slide grooves 110; through such a design, it is ensured that the auxiliary ladder 2 is always in the slide groove 110, and the auxiliary ladder supporting side beam 21 is prevented from falling off from the slide groove 110, thereby improving the sliding stability between the auxiliary ladder 2 and the slide groove 110, and at the same time, when the compact foldable telescopic escalator is in the unfolded state, the force point of the auxiliary ladder supporting side beam 21 of the auxiliary ladder 2 is in the slide groove 110, thereby ensuring the overall stability of the compact foldable telescopic escalator when people climb the compact foldable telescopic escalator.

[0043] In the illustration of the present application, a bending portion 311 is formed at one end of the pin 31; a nut 32 is threadedly connected to one end of the pin 31 passing through the first constraint hole 111, and the nut 32 locks the pin 31; a bending portion 311 is formed at one end of the pin 31, and when the pin 31 passes through the first constraint hole 111 and the second constraint hole 200, the bent portion of the bent pin 31 cannot pass through the first constraint hole 111, so that one end of the pin 31 is relatively constrained, and it is convenient to use the nut 32 to lock the other end of the pin 31; of course, the formation of the bending portion 311 at one end of the pin 31 also reduces the maximum straight-line distance of the pin 31 itself from one perspective, so that the width of the device 100 occupied by the pin 31 as a whole is relatively reduced, thereby making the device 100 more compact; of course, the formation of the bending portion 311 at one end of the pin 31 also facilitates the manual operation of the pin 31 to be inserted into the first constraint hole 111 and the second constraint hole 200 from one perspective.

[0044] When in use, the upper end of the main ladder 1 has a hanging frame 13 extending toward the equipment 100, the hanging frame 13 is hooked on the equipment 100, and the hanging frame 13 is provided with a handrail 14; there are two handrails 14 on the hanging frame 13, and the two handrails 14 are in a corresponding state; the main ladder 1 is hooked on the equipment 100 through the hanging frame 13, such as when the compact foldable telescopic escalator and the equipment 100 are detachably fixedly installed at the beginning, which is convenient for the detachable fixed installation operation; of course, when disassembling the compact foldable telescopic escalator, since the main ladder 1 is hooked on the equipment 100, the support of the hooking part of the equipment 100 also ensures the stability of the compact foldable telescopic escalator to a certain extent during disassembly; the handrail 14 is installed on the hanging frame 13, which is convenient for climbers to climb from the compact foldable telescopic escalator to the upper end of the equipment 100, and to transition from the upper end of the equipment 100 to the compact foldable telescopic escalator and climb up.

[0045] In a diagram of the present application, the main ladder 1 is provided with a plurality of main ladder pedals 15 arranged at equal distances, and the main ladder pedals 15 are located on the side of the main ladder 1 close to the equipment 100, and extend in the direction close to the equipment 100; a climber can climb the main ladder 1 by stepping on the main ladder pedals 15, and of course the main ladder pedals 15 are configured as plates with flat surfaces, so as to facilitate a better support of the climber's feet, especially when the main ladder 1 is in a relatively high position relative to the auxiliary ladder 2 when in use, so as to improve the safety of the climber; of course, due to the relative motion problem between the main ladder 1 and the auxiliary ladder 2, in order to avoid interference in the motion between the main ladder 1 and the auxiliary ladder 2, in the present application, the main ladder pedals 15 are extended in the direction close to the equipment 100.

[0046] In order to ensure the stably detachable installation between the main ladder support side beam 11 of the main ladder 1 and the equipment 100, the main ladder 1 is provided with a plurality of main ladder pedals 15 arranged at equal distances. The main ladder pedals 15 are located on the side of the main ladder 1 close to the equipment 100 and extend in the direction close to the equipment 100. The shortest distance between the main ladder pedals 15 and the equipment 100 is less than the shortest distance between the fixed block 12 and the equipment 100, thereby avoiding the main ladder pedals 15 extending too far, which would make the detachable installation between the main ladder support side beam 11 and the equipment 100 inconvenient.

[0047] However, due to the relative movement problem between the main ladder 1 and the auxiliary ladder 2, in order to avoid interference in the movement between the main ladder 1 and the auxiliary ladder 2, in the present application, a secondary ladder pedal 22 is provided at the top of the auxiliary ladder 2, and the auxiliary ladder pedal 22 extends in a direction away from the device 100.

[0048] In the illustration of the present application, a limiting plate 16 is provided on the bottom end surface of the main ladder 1, and the orthographic projection of the auxiliary ladder pedal 22 at least partially overlaps with the orthographic projection of the limiting plate 16; at this time, when the auxiliary ladder pedal 22 slides to the position of the limiting plate 16, that is, when the compact foldable telescopic escalator is unfolded to the maximum length, the constraint of the limiting plate 16 makes it impossible for the auxiliary ladder 2 to separate from the main ladder 1, thereby ensuring the relative stability between the main ladder 1 and the auxiliary ladder 2 of the compact foldable telescopic escalator.

[0049] In some embodiments, as shown in the figure, the auxiliary ladder 2 has a plurality of equally spaced footrest cross bars 23, and the footrest cross bars 23 are hollow. The hollow through holes of the footrest cross bars 23 at the uppermost and lowermost ends of the auxiliary ladder 2 serve as the second constraint holes 200; the pin shaft 31 constrains the position of the auxiliary ladder 2 relative to the main ladder 1 by passing through the first constraint hole 111 and the hollow through hole of the footrest cross bar 23.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A compact foldable telescopic escalator, detachably mounted on a device (100), characterized in that: The compact foldable telescopic escalator comprises: A main ladder (1), the main ladder (1) having a main ladder supporting side beam (11) along the extension direction of the main ladder (1), the inner side of the main ladder supporting side beam (11) having a slide groove (110) along the extension direction of the main ladder (1), and the lower end of the main ladder supporting side beam (11) having a first restraining hole (111) connected to the slide groove (110); A secondary ladder (2), the secondary ladder (2) having a secondary ladder supporting side beam (21) along the extension direction of the secondary ladder (2), the secondary ladder supporting side beam (21) being located in a slide groove (110) and movable along the slide groove (110), and the upper end and the lower end of the secondary ladder (2) both having a second restraining hole (200); In one state, the main ladder (1) and the auxiliary ladder (2) slide relative to each other until the second restraining hole (200) at the upper end of the auxiliary ladder (2) is at the position of the first restraining hole (111), and a pin shaft (31) is inserted into the second restraining hole (200) and the first restraining hole (111) at the upper end of the auxiliary ladder (2), and the compact foldable telescopic escalator is in an unfolded state; In one state, the main ladder (1) and the auxiliary ladder (2) slide relative to each other until the second restraining hole (200) at the lower end of the auxiliary ladder (2) is at the position of the first restraining hole (111), and a pin shaft (31) is inserted into the second restraining hole (200) and the first restraining hole (111) at the lower end of the auxiliary ladder (2), and the compact foldable telescopic escalator is in a folded state.

2. The compact foldable telescopic escalator according to claim 1, characterized in that: The equipment (100) is a bolter digger, and the compact foldable telescopic escalator is detachably mounted on the inspection door of the electric control box of the bolter digger.

3. The compact foldable telescopic escalator according to claim 1, characterized in that: At least one fixing block (12) is installed on the side of the main ladder (1) close to the equipment (100), and the fixing block (12) is detachably connected to the equipment (100); Optionally, the detachable connection method is bolt fastening; Optionally, the fixing block (12) has at least one fixing hole (120), and a bolt passes through the fixing hole (120) to be detachably fixed to the housing of the device (100).

4. The compact foldable telescopic escalator according to claim 1, characterized in that: There are two main ladder support side beams (11) on the main ladder (1), the two main ladder support side beams (11) are in an opposing state, the inner sides of the two main ladder support side beams (11) are provided with a slide groove (110) along the extension direction of the main ladder (1), and the width of the auxiliary ladder (2) is less than the maximum straight-line distance between the two opposing slide grooves (110) and greater than the minimum straight-line distance between the two opposing slide grooves (110).

5. The compact foldable telescopic escalator according to claim 1, characterized in that: A bent portion (311) is formed at one end of the pin shaft (31); a nut (32) is threadedly connected to one end of the pin shaft (31) passing through the first restraining hole (111), and the nut (32) locks the pin shaft (31).

6. The compact foldable telescopic escalator according to claim 1, characterized in that: The upper end of the main ladder (1) is provided with a hanging frame (13) extending toward the equipment (100), the hanging frame (13) is hooked on the equipment (100), and the hanging frame (13) is provided with a handrail (14); Optionally, there are two handrails (14) on the hanging frame (13), and the two handrails (14) are in a corresponding state.

7. The compact foldable telescopic escalator according to claim 1, characterized in that: The main ladder (1) is provided with a plurality of main ladder pedals (15) arranged at equal distances. The main ladder pedals (15) are located on the side of the main ladder (1) close to the equipment (100) and extend in a direction close to the equipment (100).

8. The compact foldable telescopic escalator according to claim 3, characterized in that: The main ladder (1) is provided with a plurality of main ladder pedals (15) arranged at equal distances. The main ladder pedals (15) are located on the side of the main ladder (1) close to the equipment (100) and extend in a direction close to the equipment (100). The shortest distance between the main ladder pedals (15) and the equipment (100) is less than the shortest distance between the fixed block (12) and the equipment (100).

9. The compact foldable telescopic escalator according to claim 1, characterized in that: A secondary ladder pedal (22) is provided at the top of the secondary ladder (2), and the secondary ladder pedal (22) extends in a direction away from the device (100); A limiting plate (16) is arranged on the bottom end surface of the main ladder (1), and the orthographic projection of the auxiliary ladder step (22) and the orthographic projection of the limiting plate (16) at least partially overlap.

10. The compact foldable telescopic escalator according to claim 1, characterized in that: The auxiliary ladder (2) is provided with a plurality of footrest crossbars (23) distributed at equal intervals, the footrest crossbars (23) are hollow, and the hollow through holes of the footrest crossbars (23) at the uppermost and lowermost ends of the auxiliary ladder (2) serve as second restraining holes (200).

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