Walking guide device for cleaning poultry breeding house

Abstract

The utility model relates to a walking guide device for cleaning a poultry breeding house. The walking guide device comprises a vertical pipe, a pre-pressing spring, a lower pressing rod and a guide wheel assembly. The vertical pipe is installed on the side face of the cleaning trolley. The pre-pressing spring is vertically arranged in the vertical pipe; the lower end of the pre-pressing spring abuts against the upper end of the lower pressing rod. The upper end of the lower pressing rod is in vertical sliding fit with the inner wall of the vertical pipe; the guide wheel assemblies are symmetrically arranged on the two sides of the lower pressing rod and connected with the lower end of the lower pressing rod. A feeding rail is arranged above a feeding trough of the coop; the guide wheel assembly comprises a freely rotating guide wheel; the guide wheel is provided with a wheel groove matched with the feeding rail; and the guide wheel is buckled on the feeding rail through the wheel groove. By means of the feeding track, the proper distance between the cleaning trolley and the coop is kept, and the cleaning trolley can be stopped at any time for cleaning; the cleaning effect of the cleaning trolley is ensured; and the distance between the cleaning trolley and the coop can be maintained when the cleaning trolley bumps due to the downward pressure provided by the pre-pressing spring to the guide wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of poultry breeding, in particular to a walking guide device for cleaning poultry breeding pens. Background Art

[0002] Poultry breeding pens are places where modern poultry is concentratedly raised; usually, poultry breeding pens are arranged with layered chicken cages to improve breeding benefits and efficiency. Modern intelligent poultry breeding uses automatic feeders to further improve breeding efficiency and reduce breeding costs. In order to ensure the normal lateral movement of the automatic feeder, a feeding track that cooperates with the automatic feeder is provided in front of the feeding trough. In addition to feeding, modern intelligent poultry breeding also needs to consider cleaning issues to ensure the hygiene and safety of poultry breeding pens. The existing cleaning trolley is set up separately and walks in the aisles between the layered chicken cages; the cleaning trolley directly rinses the cage body of the chicken cage, or uses a telescopic arm to reach into the cage body for rinsing. However, it is difficult for the existing cleaning trolley to maintain a constant distance from the cage body of the chicken cage during the walking process in the aisle, making the cleaning effect of the cleaning trolley on the cage body of the chicken cage unstable. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a walking guide device for cleaning poultry breeding pens.

[0004] The technical scheme of the utility model is: a walking guide device for cleaning poultry breeding pens, which is installed on the side of the cleaning trolley facing the chicken coop to guide the walking of the cleaning trolley; the walking guide device comprises a vertical tube, a pre-stress spring, a down-pressing rod, and a guide wheel assembly; the vertical tube is installed on the side of the cleaning trolley and forms an integral body with the cleaning trolley; the pre-stress spring is vertically arranged inside the vertical tube; the lower end of the pre-stress spring is against the upper end of the down-pressing rod; the pre-stress spring accumulates a certain elastic potential energy to drive the down-pressing rod to have a downward pressing tendency; the upper end of the down-pressing rod is vertically slidably matched with the inner wall of the vertical tube, Provide guidance for the vertical downward pressure of the down-pressing rod; the guide wheel assembly is symmetrically arranged on both sides of the down-pressing rod and connected to the lower end of the down-pressing rod; a feeding track is arranged above the feeding trough of the chicken coop; the guide wheel assembly includes a freely rotating guide wheel; the downward pressure applied by the preload spring to the guide wheel assembly through the down-pressing rod acts evenly on the guide wheel; the guide wheel is provided with a wheel groove matching the feeding track; the guide wheel is buckled on the feeding track through the wheel groove and rotates freely, which guides the movement of the cleaning trolley on the one hand and reduces the resistance encountered by the guide wheel assembly during the guiding process on the other hand.

[0005] Preferably, the walking guide device also includes a pre-stress rod; the lower end of the pre-stress rod is against the pre-stress spring; the middle part of the pre-stress rod is threadedly connected to the upper end of the vertical tube; rotating the pre-stress rod can change the axial position of the lower end of the pre-stress rod relative to the vertical tube, thereby changing the pre-compression amount of the pre-stress spring to control the elastic potential energy that the pre-stress spring can accumulate; by controlling the elastic potential energy that the pre-stress spring can accumulate to adapt to the downward pressure demand of the guide wheel, the walking guide device can provide more stable guidance.

[0006] Preferably, there are two travel guide devices, which are symmetrically installed on the sides of the cleaning trolley, so that both ends of the cleaning trolley in the travel direction can be guided; the cleaning trolley travels more steadily.

[0007] Furthermore, a pre-stress plate that slides with the inner wall of the vertical tube is coaxially fixed to the lower end of the pre-stress rod; the sliding cooperation between the pre-stress plate and the inner wall of the vertical tube provides a guide for the axial movement of the pre-stress rod along the vertical tube; the pre-stress plate can increase the contact area between the pre-stress rod and the pre-stress spring; the pre-stress plate abuts against the upper end of the pre-stress spring to ensure that the pre-stress spring can be evenly compressed axially; the upper end of the lower pressure rod is coaxially fixed with a lower pressure plate that slides with the inner wall of the vertical tube; the lower pressure plate slides with the inner wall of the vertical tube to provide a guide for the axial movement of the lower pressure rod along the vertical tube; the lower pressure plate can increase the contact area between the lower pressure rod and the pre-stress spring; the lower pressure plate abuts against the lower end of the pre-stress spring to ensure that the pre-stress spring can act evenly on the lower pressure rod.

[0008] Furthermore, the walking guide device also includes an upper end plate, a lower end plate, an upper pressure tube, a lower pressure tube, an upper baffle plate, a lower baffle plate, and a matching nut; an upper end plate is installed at the upper end of the vertical tube; the upper end plate blocks the upper end of the vertical tube; a sinking groove A is provided at the upper end of the vertical tube; a lower end plate is installed at the lower end of the vertical tube; the lower end plate blocks the lower end of the vertical tube; a sinking groove B is provided at the lower end of the vertical tube; a matching nut is arranged at the center of the upper end plate to realize a threaded connection between the middle part of the pre-compression rod and the upper end of the vertical tube; the upper baffle plate is embedded in the sinking groove A to limit the axial movement stroke of the pre-compression plate; the lower baffle plate is embedded in the sinking groove B to limit the axial movement stroke of the lower pressure plate Restriction; the two ends of the upper pressure tube are respectively against the upper end plate and the upper baffle plate; the upper pressure tube presses the upper baffle plate against the lower sinking groove A; the middle part of the pre-compression rod passes through the upper baffle plate and the upper end plate, and cooperates with the mating nut thread; the upper baffle plate and the upper end plate are both slidably matched with the middle part of the pre-compression rod, providing a guide for the axial movement of the pre-compression rod, and increasing the stability of the axial movement of the pre-compression rod; the two ends of the lower pressure tube are respectively against the lower end plate and the lower baffle plate; the lower pressure tube presses the lower baffle plate against the lower sinking groove B; the middle part of the lower pressure rod passes through the lower baffle plate and the lower end plate; the lower baffle plate and the lower end plate are both slidably matched with the middle part of the lower pressure rod, providing a guide for the axial movement of the lower pressure rod, and increasing the stability of the axial movement of the lower pressure rod.

[0009] Preferably, the walking guide device also includes a horizontal tubular frame; the top of the tubular frame is connected to the lower end of the lower pressure rod; the guide wheel is rotatably connected to the front side of the tubular frame; the tubular frame connects the lower pressure rod and the guide wheel, which can increase the installation stability of the guide wheel.

[0010] Furthermore, a guide mechanism is provided on the back of the tubular frame; the guide mechanism includes a vertical slider and a vertical slide rail that cooperate with each other; the vertical slider is fixedly connected to the back of the tubular frame; the vertical slide rail is fixedly connected to the side of the cleaning trolley; the vertical slider cooperates with the vertical slide rail to provide guidance for the guide wheel to press down.

[0011] Furthermore, the guide wheel assembly also includes a ball bearing, a rotating shaft, and a mounting nut; a bearing groove is provided in the center of the guide wheel; the ball bearing is installed in the bearing groove; the ball bearing can reduce the rotation friction of the guide wheel; a boss that cooperates with the ball bearing is extended outward from the cylindrical side of the front end of the rotating shaft; a threaded section is provided at the rear end of the rotating shaft; the threaded section penetrates the tubular frame and cooperates with the mounting nut thread to realize the connection between the rotating shaft and the tubular frame; a shaft clamping groove corresponding to the rolling bearing is provided at the front end of the rotating shaft; the shaft clamping groove can be installed with a corresponding shaft clamp, which cooperates with the boss to limit the ball bearing to the axial position on the rotating shaft; a hole clamping groove corresponding to the rolling bearing is provided at the notch of the bearing groove; the hole clamping groove can be installed with a corresponding hole clamp, which cooperates with the bearing groove to confine the ball bearing in the guide wheel.

[0012] Furthermore, a radial clamping strip is provided at the front end of the boss; by locking the clamping strip, the rotation of the shaft can be restricted, making it easier to tighten the mounting nut.

[0013] Furthermore, the guide wheel assembly also includes a locking nut; the locking nut cooperates with the threaded section thread and abuts against the mounting nut; the locking nut can prevent the mounting nut from falling off the rotating shaft, thereby increasing the connection stability between the rotating shaft and the tubular frame.

[0014] Furthermore, a clamping block is provided at the upper end of the pre-compression rod to facilitate the rotation of the pre-compression rod and the adjustment of the position of the pre-compression plate.

[0015] The beneficial effects of the utility model are as follows: the walking guide device for cleaning poultry breeding pens of the utility model has the following advantages:

[0016] (1) The guide wheel of the utility model uses the existing feeding track to keep the cleaning trolley at a suitable distance from the chicken coop, so that the cleaning trolley can stop at any time for cleaning; the cleaning effect of the cleaning trolley is guaranteed; the downward pressure provided by the preload spring to the guide wheel can keep the feeding track stuck when the cleaning trolley is bumpy, thereby maintaining the distance between the cleaning trolley and the chicken coop;

[0017] (2) The preload rod of the utility model can change the axial position of the lower end of the preload rod relative to the vertical tube, thereby changing the preload amount of the preload spring to control the elastic potential energy that can be accumulated by the preload spring; by controlling the elastic potential energy that can be accumulated by the preload spring to adapt to the downward pressure requirement of the guide wheel, the walking guide device can provide more stable guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram showing the use status of the walking guide device for cleaning poultry breeding pens according to the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the walking guide device for cleaning poultry breeding pens of the utility model;

[0020] Figure 3 It is a cutaway stereoscopic diagram of the walking guide device for cleaning poultry breeding pens according to the utility model;

[0021] Figure 4 is a cutaway perspective view of the guide wheel assembly;

[0022] Figure 1 The mid-travel guide device is installed on the side of the cleaning trolley and cooperates with the feeding track connected to the chicken cage feeding trough; the feeding track is an existing mature technology and is horizontally arranged on one side of the chicken cage; when the feeder feeds the chicken cage feeding trough, it moves horizontally on the feeding track. Figure 1 In order to clearly demonstrate the use status of the walking guide device of the utility model, the structures of the cleaning trolley and the chicken cage are simplified;

[0023] In the picture: 01. Feeding trough, 02. Feeding track,

[0024] 1. Vertical tube, 11. Install bending plate, 12. Sinking groove A, 13. Sinking groove B, 2. Pre-stress spring, 3. Lower pressure rod, 31. Lower pressure plate, 41. Guide wheel, 411. Bearing groove, 412. Hole slot, 413. Wheel groove, 42. Ball bearing, 43. Rotating shaft, 431. Boss, 4311. Clip, 432. Threaded section, 433. Shaft slot, 434. Step, 44. Install nut, 45. Anti-loosening nut, 5. Pre-stress rod, 51. Pre-stress plate, 52. Block, 61. Upper end plate, 62. Lower end plate, 63. Upper pressure tube, 64. Lower pressure tube, 65. Upper baffle, 66. Lower baffle, 67. Matching nut, 7. Tubular frame, 71. Vertical slider, 72. Vertical slide rail, 731. Horizontal long hole, 732. Round hole. DETAILED DESCRIPTION

[0025] Example 1: See Figure 1-4, a walking guide device for cleaning poultry breeding pens, installed on the side of the cleaning trolley facing the chicken coop, to guide the walking of the cleaning trolley; the walking guide device includes a vertical tube 1, a pre-stressed spring 2, a down-pressing rod 3, and a guide wheel 41 assembly; the vertical tube 1 is installed on the side of the cleaning trolley and forms an integral body with the cleaning trolley; the pre-stressed spring 2 is vertically arranged inside the vertical tube 1; the lower end of the pre-stressed spring 2 is against the upper end of the down-pressing rod 3; the pre-stressed spring 2 accumulates a certain elastic potential energy, driving the down-pressing rod 3 to have a downward pressing tendency; the upper end of the down-pressing rod 3 is vertically slidably matched with the inner wall of the vertical tube 1, providing guidance for the vertical downward pressing of the down-pressing rod 3; the guide The guide wheel 41 assembly is symmetrically arranged on both sides of the lower pressure rod 3 and connected to the lower end of the lower pressure rod 3; a feeding track 02 is provided above the feeding trough 01 of the chicken cage; the guide wheel 41 assembly includes a freely rotating guide wheel 41; the downward pressure applied by the preload spring 2 to the guide wheel 41 assembly through the lower pressure rod 3 acts evenly on the guide wheel 41; the guide wheel 41 is provided with a wheel groove 413 matching the feeding track 02; the guide wheel 41 is buckled on the feeding track 02 through the wheel groove 413 and rotates freely, which guides the movement of the cleaning trolley on the one hand, and reduces the resistance encountered by the guide wheel 41 assembly during the guiding process on the other hand.

[0026] Compared with the prior art, the guide wheel 41 of the utility model uses the existing feeding track 02 to keep the cleaning trolley at a suitable distance from the chicken coop, so that the cleaning trolley can be stopped at any time for cleaning; the cleaning effect of the cleaning trolley is guaranteed; the downward pressure provided by the preload spring 2 to the guide wheel 41 can keep the feeding track 02 stuck when the cleaning trolley is bumpy, thereby maintaining the distance between the cleaning trolley and the chicken coop.

[0027] The feeding track 02 is cylindrical, and the circumferential side of the guide wheel 41 is provided with a wheel groove 413 matching the feeding track 02. The guide wheel 41 is buckled on the feeding track 02 through the wheel groove 413.

[0028] The walking guide device also includes a pre-stress rod 5; the lower end of the pre-stress rod 5 is against the pre-stress spring 2; the middle part of the pre-stress rod 5 is threadedly connected to the upper end of the vertical tube 1; rotating the pre-stress rod 5 can change the axial position of the lower end of the pre-stress rod 5 relative to the vertical tube 1, thereby changing the pre-compression amount of the pre-stress spring 2 to control the elastic potential energy that the pre-stress spring 2 can accumulate; by controlling the elastic potential energy that the pre-stress spring 2 can accumulate to adapt to the downward pressure requirement of the guide wheel 41, the walking guide device can provide more stable guidance.

[0029] There are two travel guide devices, which are symmetrically installed on the sides of the cleaning trolley, so that both ends of the cleaning trolley in the travel direction can be guided; the cleaning trolley travels more stably.

[0030] A mounting bent plate 11 is fixedly connected to the back of the vertical tube 1 to facilitate connection with the side of the cleaning trolley; the mounting bent plate 11 is arranged at the upper and lower ends of the vertical tube 1 to increase the connection stability between the vertical tube 1 and the cleaning trolley.

[0031] The lower end of the pre-stress rod 5 is coaxially fixed with a pre-stress plate 51 that slides with the inner wall of the vertical tube 1; the sliding cooperation between the pre-stress plate 51 and the inner wall of the vertical tube 1 provides a guide for the axial movement of the pre-stress rod 5 along the vertical tube 1; the pre-stress plate 51 can increase the contact area between the pre-stress rod 5 and the pre-stress spring 2; the pre-stress plate 51 abuts against the upper end of the pre-stress spring 2 to ensure that the pre-stress spring 2 can be evenly compressed axially; the upper end of the lower pressure rod 3 is coaxially fixed with a lower pressure plate 31 that slides with the inner wall of the vertical tube 1; the lower pressure plate 31 slides with the inner wall of the vertical tube 1 to provide a guide for the axial movement of the lower pressure rod 3 along the vertical tube 1; the lower pressure plate 31 can increase the contact area between the lower pressure rod 3 and the pre-stress spring 2; the lower pressure plate 31 abuts against the lower end of the pre-stress spring 2 to ensure that the pre-stress spring 2 can act evenly on the lower pressure rod 3.

[0032] The walking guide device also includes an upper end plate 61, a lower end plate 62, an upper pressure tube 63, a lower pressure tube 64, an upper baffle 65, a lower baffle 66, and a matching nut 67; the upper end plate 61 is installed at the upper end of the vertical tube 1; the upper end plate 61 blocks the upper end of the vertical tube 1; a sinking groove A 12 is provided at the upper end of the vertical tube 1; the lower end plate 62 is installed at the lower end of the vertical tube 1; the lower end plate 62 blocks the lower end of the vertical tube 1; a sinking groove B 13 is provided at the lower end of the vertical tube 1; the matching nut 67 is arranged at the center of the upper end plate 61 to realize the threaded connection between the middle part of the pre-compression rod 5 and the upper end of the vertical tube 1; the upper baffle 65 is embedded in the sinking groove A 12 to limit the axial movement stroke of the pre-compression plate 51; the lower baffle 66 is embedded in the sinking groove B 13 to limit the axial movement stroke of the lower pressure plate 31 ; The two ends of the upper pressure tube 63 are respectively against the upper end plate 61 and the upper baffle plate 65; the upper pressure tube 63 presses the upper baffle plate 65 against the lower sinking groove A 12; the middle part of the pre-compression rod 5 passes through the upper baffle plate 65 and the upper end plate 61, and is threadedly matched with the matching nut 67; the upper baffle plate 65 and the upper end plate 61 are both slidably matched with the middle part of the pre-compression rod 5, providing a guide for the axial movement of the pre-compression rod 5, and increasing the stability of the axial movement of the pre-compression rod 5; the two ends of the lower pressure tube 64 are respectively against the lower end plate 62 and the lower baffle plate 66; the lower pressure tube 64 presses the lower baffle plate 66 against the lower sinking groove B 13; the middle part of the lower pressure rod 3 passes through the lower baffle plate 66 and the lower end plate 62; the lower baffle plate 66 and the lower end plate 62 are both slidably matched with the middle part of the lower pressure rod 3, providing a guide for the axial movement of the lower pressure rod 3, and increasing the stability of the axial movement of the lower pressure rod 3.

[0033] The walking guide device also includes a horizontal tubular frame 7; the top of the tubular frame 7 is connected to the lower end of the lower pressure rod 3; the guide wheel 41 is rotatably connected to the front side of the tubular frame 7; the tubular frame 7 is connected to the lower pressure rod 3 and the guide wheel 41, which can increase the installation stability of the guide wheel 41.

[0034] A guide mechanism is provided on the back of the tubular frame 7; the guide mechanism includes a vertical slider 71 and a vertical slide rail 72 that cooperate with each other; the vertical slider 71 is fixedly connected to the back of the tubular frame 7; the vertical slide rail 72 is fixedly connected to the side of the cleaning trolley; the vertical slider 71 cooperates with the vertical slide rail 72 to provide guidance for the guide wheel 41 to press down.

[0035] The vertical slider 71 is connected to the tubular frame 7 by screws; a through hole corresponding to the screw is provided on the front side of the tubular frame 7 so as to tighten the screw by a sleeve or a screwdriver. The through hole in this embodiment includes a horizontal long hole 731 and two round holes 732.

[0036] The guide wheel 41 assembly also includes a ball bearing 42, a rotating shaft 43, and a mounting nut 44; a bearing groove 411 is provided at the center of the guide wheel 41; the ball bearing 42 is installed in the bearing groove 411; the ball bearing 42 can reduce the rotation friction of the guide wheel 41; a boss 431 that cooperates with the ball bearing 42 extends outward from the cylindrical side surface at the front end of the rotating shaft 43; a threaded section 432 is provided at the rear end of the rotating shaft 43; the threaded section 432 penetrates the tubular frame 7 and then cooperates with the mounting nut 44 to achieve the connection between the rotating shaft 43 and the tubular frame 7; a shaft clamping groove 433 corresponding to the rolling bearing is provided at the front end of the rotating shaft 43; the shaft clamping groove 433 can be installed with a corresponding shaft clamp, which cooperates with the boss 431 to limit the ball bearing 42 to the axial position on the rotating shaft 43; a hole clamping groove 412 corresponding to the rolling bearing is provided at the notch of the bearing groove 411; the hole clamping groove 412 can be installed with a corresponding hole clamp, which cooperates with the bearing groove 411 to limit the ball bearing 42 in the guide wheel 41.

[0037] A step 434 is provided in the middle of the rotating shaft 43 to abut against the front end of the tubular frame 7, so as to ensure that the guide wheel 41 and the tubular frame 7 maintain a fixed distance, so that the guide wheel 41 can function stably.

[0038] A radial clamping strip 4311 is disposed at the front end of the boss 431 ; by locking the clamping strip 4311 , the rotation of the rotating shaft 43 can be restricted, making it easier to tighten the mounting nut 44 .

[0039] The guide wheel 41 assembly also includes a locking nut 45; the locking nut 45 is threadedly matched with the threaded section 432 and abuts against the mounting nut 44; the locking nut 45 can prevent the mounting nut 44 from falling off the rotating shaft 43, thereby increasing the connection stability between the rotating shaft 43 and the tubular frame 7.

[0040] The working principle of this embodiment: rotating the pre-compression rod 5 can change the axial position of the lower end of the pre-compression rod 5 relative to the vertical tube 1, thereby changing the pre-compression amount of the pre-compression spring 2 to control the elastic potential energy that the pre-compression spring 2 can accumulate; the elastic potential energy that the pre-compression spring 2 can accumulate is controlled to adapt to the downward pressure demand of the guide wheel 41. The downward pressure applied by the pre-compression spring 2 to the guide wheel 41 assembly through the downward pressure rod 3 acts evenly on the guide wheel 41; the guide wheel 41 is buckled on the feeding track 02 through the wheel groove 413 and rotates freely, on the one hand to guide the movement of the cleaning trolley, and on the other hand to reduce the resistance encountered by the guide wheel 41 assembly during the guiding process. The guide wheel 41 of the utility model uses the existing feeding track 02 to keep the cleaning trolley at a suitable distance from the chicken coop. The downward pressure provided by the pre-compression spring 2 to the guide wheel 41 can keep the feeding track 02 stuck when the cleaning trolley is bumpy, and maintain the distance between the cleaning trolley and the chicken coop.

[0041] Embodiment 2: Embodiment 2 is basically the same as Embodiment 1, and the similarities are not repeated here. The difference is that a clamping block 52 is provided at the upper end of the pre-compression rod 5 to facilitate the rotation of the pre-compression rod 5 and the adjustment of the position of the pre-compression plate 51.

[0042] The upper end plate 61 and the lower end plate 62 are both connected to the vertical pipe 1 in the form of flanges, thereby improving the connection stability between the upper end plate 61, the lower end plate 62 and the vertical pipe 1.

Claims

1. A walking guide device for cleaning poultry breeding pens, characterized in that: It is installed on the side of the cleaning trolley facing the chicken coop, and includes a vertical tube, a pre-stressed spring, a lower pressure rod, and a guide wheel assembly; the vertical tube is installed on the side of the cleaning trolley; the pre-stressed spring is vertically arranged inside the vertical tube; the lower end of the pre-stressed spring abuts against the upper end of the lower pressure rod; the upper end of the lower pressure rod vertically slides with the inner wall of the vertical tube; the guide wheel assembly is symmetrically arranged on both sides of the lower pressure rod and connected to the lower end of the lower pressure rod; a feeding track is arranged above the feeding trough of the chicken coop; the guide wheel assembly includes a freely rotating guide wheel; the guide wheel is provided with a wheel groove matching the feeding track; the guide wheel is buckled on the feeding track through the wheel groove.

2. The walking guide device according to claim 1, characterized in that: It also includes a pre-compression rod; the lower end of the pre-compression rod is against the pre-compression spring; the middle part of the pre-compression rod is threadedly connected with the upper end of the vertical pipe.

3. The walking guide device according to claim 2, characterized in that: The lower end of the pre-compression rod is coaxially fixed with a pre-compression plate that slides with the inner wall of the vertical tube; the pre-compression plate abuts against the upper end of the pre-compression spring; the upper end of the lower pressure rod is coaxially fixed with a lower pressure plate that slides with the inner wall of the vertical tube; the lower pressure plate abuts against the lower end of the pre-compression spring.

4. The walking guide device according to claim 2, characterized in that: It also includes an upper end plate, a lower end plate, an upper pressure tube, a lower pressure tube, an upper baffle, a lower baffle, and a matching nut; an upper end plate is installed at the upper end of the vertical tube; a sinking groove A is provided at the upper end of the vertical tube; a lower end plate is installed at the lower end of the vertical tube; a sinking groove B is provided at the lower end of the vertical tube; the matching nut is arranged at the center of the upper end plate; the upper baffle is embedded in the sinking groove A; the lower baffle is embedded in the sinking groove B; the two ends of the upper pressure tube are respectively against the upper end plate and the upper baffle; the middle part of the pre-compression rod passes through the upper baffle and the upper end plate, and cooperates with the matching nut thread; the two ends of the lower pressure tube are respectively against the lower end plate and the lower baffle; the middle part of the lower pressure rod passes through the lower baffle and the lower end plate.

5. The walking guide device according to claim 1, characterized in that: It also includes a horizontal tubular frame; the top of the tubular frame is connected to the lower end of the lower pressure rod; and the guide wheel is rotatably connected to the front side of the tubular frame.

6. The walking guide device according to claim 5, characterized in that: A guide mechanism is arranged on the back of the tubular frame; the guide mechanism comprises a vertical slider and a vertical slide rail which cooperate with each other; the vertical slider is fixedly connected to the back of the tubular frame; and the vertical slide rail is fixedly connected to the side of the cleaning trolley.

7. The walking guide device according to claim 5, characterized in that: The guide wheel assembly also includes a ball bearing, a rotating shaft, and a mounting nut; a bearing groove is provided in the center of the guide wheel; the ball bearing is installed in the bearing groove; a boss that cooperates with the ball bearing extends outward from the cylindrical side surface at the front end of the rotating shaft; a threaded section is provided at the rear end of the rotating shaft; the threaded section penetrates the tubular frame and cooperates with the mounting nut thread; a shaft clamping groove corresponding to the rolling bearing is provided at the front end of the rotating shaft; and a hole clamping groove corresponding to the rolling bearing is provided at the notch of the bearing groove.

8. The walking guide device according to claim 7, characterized in that: A radial clamping strip is arranged at the front end of the boss.

9. The walking guide device according to claim 7, characterized in that: The guide wheel assembly also includes a locking nut; the locking nut is threadably matched with the threaded section and abuts against the mounting nut.

10. The walking guide device according to claim 2, characterized in that: A clamping block is arranged on the upper end of the pre-compression rod.

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