Electric carrier swing arm convenient for threading

Abstract

The utility model relates to the technical field of electric carrying vehicles, in particular to an electric carrying vehicle swing arm convenient for threading, which comprises a swing arm body, a dismounting plate and two lantern rings, the swing arm body comprises a mounting part for mounting a control handle, a heightening part and a connecting part rotationally connected with a vehicle body, the heightening part is tubular as a whole, and the dismounting plate is arranged on the mounting part; the heightening part is provided with a penetrating wire passing cavity, one side of the heightening part is provided with a mounting groove, the mounting groove is communicated with the wire passing cavity, the dismounting plate is detachably arranged in the mounting groove, the two lantern rings are slidably arranged on the heightening part in a sleeving mode and clamped with or separated from the heightening part, and after the lantern rings slide by a preset distance, one sides of the lantern rings are arranged on the outer side of the dismounting plate in a sleeving mode; according to the utility model, the dismounting plate is detachably connected with the heightening part, so that the dismounting plate can be dismounted during threading, the wire passing cavity is exposed, the cable on the control handle is pulled, and the advantage of convenient threading is realized.

Description

Technical Field

[0001] This application relates to the field of electric pallet truck technology, and more specifically to an electric pallet truck swing arm that is easy to thread. Background Technology

[0002] An electric pallet truck is a logistics handling device used for moving goods. Patent document (CN215479482U) discloses an electric pallet truck, which includes a swing arm located at the front end of the electric pallet truck and has an operating handle. When in use, the user holds the operating handle and drives the electric pallet truck by pressing the drive switch on the operating handle. Pressing the lifting switch on the operating handle can drive the fork to move up and down.

[0003] There is a type of electric pallet truck swing arm, such as Figure 6 As shown, the system includes a mounting part 90, a raising part 91, and a connecting part 92. The operating handle is mounted on the mounting part 90, and the connecting part 92 is rotatably connected to the vehicle body. The raising part 91 has a through-hole fork through which the cable on the operating handle passes to connect to the shift fork system. However, because the raising part 91 is tubular in shape and relatively long, and all four side walls of the raising part 91 are closed, and the number of cables on the operating handle is relatively large, it usually takes a long time for the cables on the operating handle to pass through the cable cavity from the mounting part 90.

[0004] Therefore, there is a need for an electric pallet truck swing arm that facilitates cable threading. Summary of the Invention

[0005] The main objective of this application is to provide an electric transport vehicle swing arm that facilitates cable threading. The swing arm, mounted on an electric transport vehicle, includes a vehicle body and a control handle. The swing arm comprises a swing arm body, a disassembly plate, and two collars. The swing arm body includes a mounting portion for mounting the control handle, an extension portion, and a connecting portion rotatably connected to the vehicle body. The extension portion is tubular in shape and has a through-hole for cable passing. One side of the extension portion has a mounting groove communicating with the cable passing cavity. The disassembly plate is detachably disposed within the mounting groove. The two collars are slidably fitted onto the extension portion and engage or disengage from it. After the collars slide a predetermined distance, one side of each collar is fitted onto the outside of the disassembly plate. By detachably connecting the disassembly plate to the extension portion, the disassembly plate can be removed during cable threading to expose the cable passing cavity and pull the cable on the control handle. Compared to existing technologies, this provides an advantage in facilitating cable threading.

[0006] Another object of the present application is to provide a wire threading facilitating electric pallet truck swing arm, wherein the two sides of the height increasing part are respectively provided with a plurality of first accommodating grooves, the inner side wall of each sleeve ring is provided with a plurality of clamping grooves, the first accommodating grooves are located at one end of the height increasing part close to the mounting part, the wire threading facilitating electric pallet truck swing arm further comprises a plurality of first clamping structures, one first clamping structure is arranged in each first accommodating groove, each first clamping structure comprises a first pressing piece and a supporting piece, one end of the first pressing piece is provided with a first clamping part, the middle section of the first pressing piece is provided with a through groove, the first pressing piece and the supporting piece are movable in the groove depth direction of the first accommodating groove, and the moving directions of the first pressing piece and the supporting piece are opposite, when the first pressing piece moves, the first clamping part is separated from or clamped with the clamping groove, and the supporting piece passes through the through groove and extends out of the groove opening of the first accommodating groove by a predetermined distance or is arranged in the through groove, by pressing the first pressing piece, the supporting piece extends out of the first accommodating groove, so as to avoid that the sleeve ring moves downward and hurts the operator.

[0007] In order to achieve the above-mentioned at least one object of the present application, the present application provides a wire threading facilitating electric pallet truck swing arm arranged on an electric pallet truck, wherein the electric pallet truck comprises a vehicle body and a control handle, and the wire threading facilitating electric pallet truck swing arm comprises:

[0008] a swing arm body, the swing arm body comprises a mounting part for mounting the control handle, a height increasing part and a connecting part rotationally connected with the vehicle body, the height increasing part is tubular as a whole, the height increasing part is provided with a through wire cavity, one side of the height increasing part is provided with a mounting groove, and the mounting groove is communicated with the wire cavity; and

[0009] a detachable plate, the detachable plate is detachably arranged in the mounting groove; and

[0010] two sleeve rings, the two sleeve rings are slidably sleeved on the height increasing part and are clamped or separated with the height increasing part, and one side of the sleeve ring is sleeved on the outer side of the detachable plate after the sleeve ring slides by a predetermined distance.

[0011] In one or more embodiments of the present application, the two sides of the height increasing part are respectively provided with a plurality of first accommodating grooves, the inner side wall of each of the sleeves is provided with a plurality of clamping grooves, the first accommodating grooves are located at one end of the height increasing part close to the mounting part, the electric truck swing arm facilitating wire threading further comprises a plurality of first clamping structures, one first clamping structure is arranged in each of the first accommodating grooves, each of the first clamping structures comprises a first pressing piece and a supporting piece, one end of the first pressing piece is provided with a first clamping part, the middle section of the first pressing piece is provided with a through groove, the first pressing piece and the supporting piece are movable in the depth direction of the first accommodating groove, and the moving directions of the first pressing piece and the supporting piece are opposite, when the first pressing piece moves, the first clamping part is separated from or clamped with the clamping groove, and the supporting piece passes through the through groove and extends out of the groove opening of the first accommodating groove by a predetermined distance or is arranged in the through groove.

[0012] In one or more embodiments of the present application, the top and bottom of the height increasing part are respectively provided with a second accommodating groove, the electric truck swing arm facilitating wire threading further comprises a plurality of second clamping structures, the second clamping structure comprises a first spring and a first clamping piece, one end of the first clamping piece is provided with a spherical surface part, the two ends of the first spring are respectively connected with the bottom wall of the second accommodating groove and one end of the first clamping piece away from the spherical surface part, and the spherical surface part extends out of the groove opening of the second accommodating groove, when the sleeve moves in the direction of the second accommodating groove by a predetermined distance, the spherical surface part of the first clamping piece is clamped with or separated from the clamping groove.

[0013] In one or more embodiments of the present application, each of the first clamping structures further comprises an intermediate sliding block, the intermediate sliding block is slidingly arranged in the length direction of the first accommodating groove, the two ends of the intermediate sliding block are respectively provided with a first inclined surface and a second inclined surface, one end of the first pressing piece away from the first clamping part is provided with a third inclined surface, one end of the supporting piece close to the bottom wall of the first accommodating groove is provided with a fourth inclined surface, the first inclined surface and the third inclined surface are mutually fitted, the second inclined surface and the fourth inclined surface are mutually fitted, and the directions of the first inclined surface and the second inclined surface are opposite.

[0014] In one or more embodiments of the present application, each of the first clamping structures further comprises a second spring, a third spring and a tension spring, the two ends of the second spring are respectively connected with the bottom wall of the first accommodating groove and one end of the first pressing piece having the first clamping part, the third spring is respectively connected with the intermediate sliding block and the side wall of the first accommodating groove, and the two ends of the tension spring are respectively connected with the intermediate sliding block and the supporting piece.

[0015] In one or more embodiments of the present application, the two sides of the heightening portion further have a plurality of third accommodating grooves, and the wire-threading facilitating electric pallet truck swing arm further comprises a plurality of third clamping structures, each of which comprises a second pressing piece and a plurality of fourth springs, the two ends of each fourth spring being connected with the second pressing piece and the bottom wall of the third accommodating groove respectively, and the end of the second pressing piece has a second clamping portion which is clamped with or separated from the clamping groove on the corresponding sleeve ring.

[0016] In the embodiments of the present application, the wire-threading facilitating electric pallet truck swing arm is arranged on an electric pallet truck and comprises a swing arm body, a detachable plate and two sleeve rings. The swing arm body comprises a mounting portion for mounting a control handle, a heightening portion and a connecting portion rotatably connected with a vehicle body. The heightening portion is tubular as a whole and has a wire passing cavity. One side of the heightening portion has a mounting groove which is connected with the wire passing cavity. The detachable plate is detachably arranged in the mounting groove. The two sleeve rings are slidably sleeved on the heightening portion and are clamped with or separated from the heightening portion. When the sleeve ring slides by a predetermined distance, one side of the sleeve ring is sleeved on the outside of the detachable plate. By detachably connecting the detachable plate with the heightening portion, the detachable plate can be detached and the wire passing cavity is exposed when threading the wire, and the cable on the control handle is pulled. Compared with the prior art, the wire-threading facilitating electric pallet truck swing arm has the advantage of facilitating wire threading. BRIEF DESCRIPTION OF DRAWINGS

[0017] These and / or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings in which:

[0018] Figure 1 FIG. 1 illustrates a structure schematic diagram of a wire-threading facilitating electric pallet truck swing arm according to an embodiment of the present application;

[0019] Figure 2 FIG. 4 illustrates a sectional view of the sleeve ring at a certain angle;

[0020] Figure 3 FIG. 5 illustrates a structure schematic diagram of the sleeve ring at another angle at the upper end of the heightening portion;

[0021] Figure 4 FIG. 6 illustrates a sectional view of the sleeve ring at a certain angle at the lower end of the heightening portion; Figure 3

[0022] Figure 5 FIG. 7 illustrates a structure schematic diagram of a conventional electric pallet truck swing arm.

[0023] Figure 6 FIG. 7 illustrates a structure schematic diagram of a conventional electric pallet truck swing arm. DETAILED DESCRIPTION

[0024] ​The terms and words used in the following description and claims are not limited to the literal meanings and are used only by the inventors to enable a clear and consistent understanding of the application. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the application is provided for illustration purpose only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

[0025] It is understood that the term "one" should be understood as "at least one" or "one or more" i.e. in one embodiment, the number of a certain element can be one, and in another embodiment, the number of the element can be more than one, and the term "one" should not be understood as limiting the number to one.

[0026] Although ordinal numbers such as "first", "second" and the like will be used in describing various components, they are used for the purpose of distinguishing one component from another only and are not intended to limit the scope of the application. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "has," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0028] The schematic electrically-driven truck swing arm facilitating threading, with reference to Figures 1 to 5 , according to a preferred embodiment of the present application, a swing arm facilitating threading of an electrically-driven truck is provided on the electrically-driven truck, as shown in Figure 1 , the electrically-driven truck comprises a truck body and a control handle, and the swing arm facilitating threading of the electrically-driven truck comprises a swing arm body 10, a detachable plate 20 and two loops 30.

[0029] Specifically, as shown in Figure 2 and Figure 3As shown, the swing arm body 10 comprises a mounting portion 101 for mounting the control handle, a heightening portion 102 and a connecting portion 103 rotatably connected with the vehicle body, the heightening portion 102 is tubular in whole, the heightening portion 102 has a through wire cavity 1021, both ends of the wire cavity 1021 extend to the mounting portion 101 and the connecting portion 103, one side of the heightening portion 102 has a mounting groove 1022, the mounting groove 1022 is communicated with the wire cavity 1021; in addition, the dismounting plate 20 is detachably arranged in the mounting groove 1022; in addition, two sleeve rings 30 are slidably sleeved on the heightening portion 102 and are clamped or separated with the heightening portion 102, when the sleeve ring 30 slides a predetermined distance, one side of the sleeve ring 30 is sleeved on the outside of the dismounting plate 20.

[0030] It should be noted that when the control handle is mounted on the mounting portion 101 and the cable connected with the control handle is passed through the wire cavity 1021, the dismounting plate 20 can be first dismounted and the wire cavity 1021 is exposed, that is, one side of the wire cavity 1021 is in an open state, then the assembler can pull the cable on the control handle downward and pass out of one end of the wire cavity 1021 away from the mounting portion 101 by hand, after the cable on the control handle passes out of the wire cavity 1021, the assembler installs the dismounting plate 20 on the mounting groove 1022 to realize the closure of the side wall of the heightening portion 102.

[0031] In addition, under normal circumstances, when the dismounting plate 20 is arranged in the mounting groove 1022, two sleeve rings 30 are sleeved on the top and bottom of the heightening portion 102 and the outside of the dismounting plate 20, and at this time, the two sleeve rings 30 are clamped with the heightening portion 102, then the bottom surface of the dismounting plate 20 is abutted with the bottom walls on both sides of the mounting groove 1022, the dismounting plate 20 is limited by the sleeve ring 30 and cannot be turned outward, and the dismounting plate 20 does not move left and right transversely relative to the heightening portion 102, and then when the sleeve ring 30 is sleeved on the outside of the dismounting plate 20, the dismounting plate 20 will be arranged in the mounting groove 1022 and is difficult to be taken out; when it is needed to dismount the dismounting plate 20 and lead out the cable connected with the control handle, the operator only needs to move the two sleeve rings 30 a predetermined distance towards both ends of the dismounting plate 20 respectively, and make the sleeve ring 30 not be sleeved on the outside of the dismounting plate 20, at this time, the dismounting plate 20 can be taken off, so as to realize the dismounting of the dismounting plate 20. It can be seen that compared with the heightening portion 102 in the prior art, the four walls of which are always closed, the application has the advantage of facilitating wire passing.

[0032] Further, in order to realize the transverse left and right movement of the dismounting plate 20,Figure 1 As shown in the figure, the two ends of the dismounting plate 20 are provided with protrusions 201, and the two ends of the mounting groove 1022 are provided with recesses (not shown in the figure). When the dismounting plate is arranged in the mounting groove 1022, the protrusions 201 are arranged in the recesses and are in close contact with the side walls of the recesses, so as to avoid the transverse left and right movement of the dismounting plate 20 in the mounting groove 1022.

[0033] Further, in order to realize the clamping of the sleeve ring 30 and the heightening portion 102, as shown in the figure, Figure 2 and Figure 4 As shown in the figure, the two sides of the heightening portion 102 are provided with a plurality of first accommodating grooves 1023, and the inner side wall of each sleeve ring 30 is provided with a plurality of clamping grooves 301. The first accommodating grooves 1023 are arranged at one end of the heightening portion 102 close to the mounting portion 101. The wire-drawing convenient electric truck swing arm further comprises a plurality of first clamping structures 40. Each first accommodating groove 1023 is provided with a first clamping structure 40. Each first clamping structure 40 comprises a first pressing piece 401 and a supporting piece 402. One end of the first pressing piece 401 is provided with a first clamping portion 4011. The middle section of the first pressing piece 401 is provided with a through groove 4012. The first pressing piece 401 and the supporting piece 402 are movable in the groove depth direction of the first accommodating groove 1023, and the moving directions of the first pressing piece 401 and the supporting piece 402 are opposite. When the first pressing piece 401 moves, the first clamping portion 4011 is separated from or clamped with the clamping groove 301, and the supporting piece 402 passes through the through groove 4012 and extends out of the groove opening of the first accommodating groove 1023 by a predetermined distance or is arranged in the through groove 4012.

[0034] In addition, as shown in the figure, Figure 3 The top and bottom of the heightening portion 102 are provided with a second accommodating groove 1024. The wire-drawing convenient electric truck swing arm further comprises a plurality of second clamping structures 50. The second clamping structure 50 comprises a first spring 501 and a first clamping piece 502. One end of the first clamping piece 502 is provided with a spherical surface portion 5021. The two ends of the first spring 501 are connected with the bottom wall of the second accommodating groove 1024 and one end of the first clamping piece 502 away from the spherical surface portion 5021, respectively. The spherical surface portion 5021 extends out of the groove opening of the second accommodating groove 1024. When the sleeve ring 30 moves in the direction of the second accommodating groove 1024 by a predetermined distance, the spherical surface portion 5021 of the first clamping piece 502 is clamped with or separated from the clamping groove 301.

[0035] In addition, as shown in the figure, Figure 5As shown, the two sides of the heightening part 102 are also provided with a plurality of third accommodating grooves 1025, and the swing arm of the electric trolley facilitating wire threading further comprises a plurality of third clamping structures 60. Each third clamping structure 60 comprises a second pressing piece 601 and a plurality of fourth springs 602. The two ends of each fourth spring 602 are connected with the second pressing piece 601 and the bottom wall of the third accommodating groove 1025 respectively. The end of the second pressing piece 601 is provided with a second clamping part 6011. The second clamping part 6011 is clamped with or separated from the clamping groove 301 on the corresponding sleeve ring 30.

[0036] It needs to be explained that, in normal state, the sleeve ring 30 is sleeved on the outside of the dismounting plate 20, and the clamping groove 301 on the inner wall of the sleeve ring 30 is clamped with the first clamping part 4011 on the first pressing piece 401, so as to realize the fixation of the sleeve ring 30 on the heightening part 102; when it is needed to move the sleeve ring 30, the operator can press the first pressing piece 401, then the first clamping part 4011 is separated from the clamping groove 301, at this time, the sleeve ring 30 can be moved. However, since one of the sleeve rings 30 located at one end of the heightening part 102 close to the mounting plate is moved upward, and the end of the corresponding first pressing piece 401 away from the first clamping part 4011 is located below this sleeve ring 30, therefore, when the operator presses the first pressing piece 401, the operator does not hold this sleeve ring 30 in advance, and the sleeve ring 30 slides downward and hurts the fingers of the operator, the application sets the supporting piece 402, when the operator presses the first pressing piece 401, the supporting piece 402 extends out of the notch of the first containing groove 1023, even if the sleeve ring 30 moves downward, it is also difficult to hurt the fingers of the operator due to the blocking of the supporting piece 402 extending out, and one of the second clamping structures 50 is located above the first containing groove 1023, therefore, this sleeve ring 30 can move upward by a predetermined distance after being separated from the first pressing piece 401, and the spherical surface part 5021 is clamped with the clamping groove 301, so as to realize the temporary fixation of the sleeve ring 30, it needs to be supplemented that when the sleeve ring 30 contacts with the spherical surface part 5021, the spherical surface part 5021 is subjected to a pressure, and the sleeve ring 30 can be further moved until the spherical surface part 5021 is right above the clamping groove 301, the spherical surface part 5021 is clamped into the clamping groove 301 under the elastic force of the first spring 501; in addition, one of the sleeve rings 30 located at one end of the heightening part 102 close to the connecting part 103 is moved downward, and the end of the corresponding second pressing piece 601 away from the second clamping part 6011 is located above the sleeve ring 30, and the corresponding second clamping structure 50 is located below the sleeve ring 30, at this time, after pressing this first pressing piece 401, the sleeve ring 30 will automatically move downward under the action of gravity and contact and clamp with the corresponding spherical surface part 5021.

[0037] Further, in order to realize the movement of the supporting piece 402 in the opposite direction when the first pressing piece 401 is pressed, such as Figure 4As shown, each first clamping structure 40 further comprises an intermediate sliding block 403 which is slidingly arranged in the length direction of the first accommodating groove 1023, two ends of the intermediate sliding block 403 are respectively provided with a first inclined surface 4031 and a second inclined surface 4032, one end of the first pressing member 401 away from the first clamping portion 4011 is provided with a third inclined surface (not labeled in the figure), one end of the supporting member 402 close to the bottom wall of the first accommodating groove 1023 is provided with a fourth inclined surface (not labeled in the figure), the first inclined surface 4031 and the third inclined surface are mutually fitted, the second inclined surface 4032 and the fourth inclined surface are mutually fitted, and the first inclined surface 4031 and the second inclined surface 4032 are oppositely directed.

[0038] Further, in order to reset the first pressing member 401, the intermediate sliding block 403 and the supporting member 402, and to make the first clamping portion 4011 of the first pressing member 401 normally protrude out of the slot of the first accommodating groove 1023, as shown, Figure 4 As shown, each first clamping structure 40 further comprises a second spring 404, a third spring 405 and a tension spring 406, two ends of the second spring 404 are respectively connected with the bottom wall of the first accommodating groove 1023 and one end of the first pressing member 401 provided with the first clamping portion 4011, the third spring 405 is respectively connected with the intermediate sliding block 403 and the side wall of the first accommodating groove 1023, and two ends of the tension spring 406 are respectively connected with the intermediate sliding block 403 and the supporting member 402.

[0039] It should be noted that when the operator presses the first pressing member 401, the first pressing member 401 moves towards the bottom of the first accommodating groove 1023, and the first clamping portion 4011 is separated from the clamping groove 301, at the same time, the first inclined surface 4031 of the intermediate sliding block 403 is stressed and makes the intermediate sliding block 403 move towards one end of the first pressing member 401 provided with the first clamping portion 4011, and the supporting member 402 moves towards the slot of the first accommodating groove 1023, and it should be emphasized that the tension spring 406 is relatively loose and has a certain deformation allowance; when the operator releases the first pressing member 401, the first pressing member 401 is reset under the elastic force of the second spring 404, in addition, the intermediate sliding block 403 is reset under the action of the third spring 405, and the reset of the intermediate sliding block 403 drives the supporting member 402 to extend back into the first accommodating groove 1023 through the tension spring 406.

[0040] In summary, the electric truck swing arm facilitating threading according to the embodiments of the present application is illustrated, which provides the electric truck swing arm facilitating threading with the advantages of facilitating threading and the like.

[0041] It is worth mentioning that, in the embodiment of the application, the swing arm structure of the electric truck facilitating threading is simple, does not involve complex manufacturing processes and expensive materials, and has high economy. At the same time, for the manufacturer, the swing arm of the electric truck facilitating threading provided by the application is easy to produce and has low cost, which is more conducive to controlling the production cost and further conducive to product promotion and use.

[0042] Those skilled in the art will understand that the embodiments of the utility model shown in the above description and the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the implementation of the utility model can have any deformation or modification without departing from the principle.

Claims

1. A swing arm for an electric transport vehicle that facilitates cable threading, mounted on an electric transport vehicle, the electric transport vehicle comprising a vehicle body and a control handle, characterized in that: The electric truck swing arm facilitating wire threading comprises a swing arm body, the swing arm body comprising a mounting portion for mounting the control handle, a heightening portion and a connecting portion rotatably connected with the truck body, the heightening portion being tubular in whole, the heightening portion having a wire passing cavity, one side of the heightening portion having a mounting groove, the mounting groove being communicated with the wire passing cavity; and a detachable plate, the detachable plate being detachably arranged in the mounting groove; and two collars, the two collars being slidably arranged on the heightening portion and being capable of being engaged with or separated from the heightening portion, one side of the collar being arranged outside the detachable plate after the collar slides a predetermined distance.

2. The electric pallet truck swing arm with ease of threading according to claim 1, characterized in that: The two sides of the heightening portion each have a plurality of first accommodating grooves, the inner side wall of each collar has a plurality of engaging grooves, the first accommodating grooves are located at one end of the heightening portion close to the mounting portion, and the electric truck swing arm facilitating wire threading further comprises a plurality of first engaging structures, one first engaging structure is arranged in each first accommodating groove, each first engaging structure comprises a first pressing member and a supporting member, one end of the first pressing member has a first engaging portion, the middle section of the first pressing member has a through groove, the first pressing member and the supporting member are movable in the depth direction of the first accommodating groove, and the moving directions of the first pressing member and the supporting member are opposite, the first engaging portion is separated from or engaged with the engaging groove when the first pressing member moves, and the supporting member passes through the through groove and extends out of the groove opening of the first accommodating groove by a predetermined distance or the supporting member is arranged in the through groove.

3. The electric pallet truck swing arm with ease of threading according to claim 2, characterized in that: The top and bottom of the heightening portion each have a second accommodating groove, and the electric truck swing arm facilitating wire threading further comprises a plurality of second engaging structures, the second engaging structure comprising a first spring and a first engaging member, one end of the first engaging member has a spherical surface portion, the two ends of the first spring are connected with the bottom wall of the second accommodating groove and the end of the first engaging member away from the spherical surface portion, respectively, and the spherical surface portion extends out of the groove opening of the second accommodating groove, the spherical surface portion of the first engaging member is engaged with or separated from the engaging groove after the collar moves a predetermined distance towards the second accommodating groove.

4. The electric pallet truck swing arm with ease of threading of claim 2, wherein: Each first engaging structure further comprises an intermediate sliding block, the intermediate sliding block being slidably arranged in the length direction of the first accommodating groove, the two ends of the intermediate sliding block each have a first inclined surface and a second inclined surface, one end of the first pressing member away from the first engaging portion has a third inclined surface, one end of the supporting member close to the bottom wall of the first accommodating groove has a fourth inclined surface, the first inclined surface and the third inclined surface are mutually abutted, the second inclined surface and the fourth inclined surface are mutually abutted, and the directions of the first inclined surface and the second inclined surface are opposite.

5. The electric pallet truck swing arm with ease of threading according to claim 4, characterized in that: Each of the first clamping structures further comprises a second spring, a third spring and a tension spring, two ends of the second spring are connected with the bottom wall of the first accommodating groove and one end of the first clamping part of the first pressing piece respectively, the third spring is connected with the intermediate sliding block and the side wall of the first accommodating groove respectively, and two ends of the tension spring are connected with the intermediate sliding block and the supporting piece respectively.

6. The electric pallet truck swing arm with ease of threading of claim 3, wherein: The two sides of the heightening part further have a plurality of third accommodating grooves, and the electric trolley swing arm facilitating wire threading further comprises a plurality of third clamping structures, each of the third clamping structures comprises a second pressing piece and a plurality of fourth springs, two ends of the fourth springs are connected with the second pressing piece and the bottom wall of the third accommodating groove respectively, the end of the second pressing piece has a second clamping part, and the second clamping part is clamped with or separated from the clamping groove on the corresponding sleeve ring.

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