CN204237463U - Hand rail tension device and apply the handrail system of this device - Google Patents

Abstract

The utility model discloses a handrail belt tensioning device and a handrail system using the device, which comprises: a fixing frame that can be fixed on a truss, and the fixing frame is provided with a guide rod; more than one pressing wheel for pressing the handrail belt , installed on the wheel frame with sleeve, the wheel frame is sleeved on the guide rod through the sleeve to move along the guide rod; it is socketed on the tension member that exerts downward pressure on the sleeve above the guide rod above the wheel frame; The adjusting nut screwed on the guide rod at the position above the tensioning piece can compress or loosen the tensioning piece. The utility model has a compact and simple structure, is safe and reliable, uses the guide rod and the sleeve to move in a directional manner, and will not be blocked by each other and cannot be adjusted, and standard parts can be selected, which is convenient to manufacture and low in cost; the adjustment of the tension force can be adjusted Nuts and tensioning parts are located above the pressure wheel and the handrail, so the adjustment is simple, just disassemble the inner cover of the handrail, no need to disassemble the steps, and the adjustment personnel do not need to lie on the bottom plate to operate.

Description

Handrail belt tensioning device and handrail system using the device

technical field

The utility model relates to the field of escalators and moving walks, in particular to a handrail belt tensioning device and a handrail system using the device.

Background technique

The reasonable tension force of the handrail system of the escalator or moving walk needs to be set according to the lifting height to ensure the operation effect of the handrail system and the service life of the handrail belt. Therefore, the reasonable tension degree or tension force of the tensioning device of each handrail system with different lifting heights is different.

The actual installation and debugging method of the general tensioning device nowadays is to use experience to press down and fix the tensioning method, that is, when the handrail is installed, the installation worker manually presses down the tensioning device for one time based on his own technical experience, and then Fixed tension. In this common installation method, accurate quantitative data cannot be obtained for the tension force, and the tension effect is largely limited by the technical ability and experience of the front-line installation workers, and it cannot be automatically adjusted according to the tension of the handrail during use.

For this reason, some improved tensioning devices have come out, but their structures are more complicated, and each component needs to be specially made, not only the chute slider structure with concave and convex inlays, but also springs and connecting rods for spring guidance. It is also more complicated. At the same time, since the tension generating elastic body is located below the pinch wheel, it is very difficult to adjust the tension. It is necessary to disassemble the steps to complete the adjustment, which is labor-intensive and time-consuming.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a handrail belt tensioning device with simple structure, easy manufacture, convenient installation and adjustment and a handrail system using the device.

The purpose of this utility model is achieved in this way: a handrail tensioning device, which is characterized in that it includes: a fixing frame that can be fixed on the truss, and the fixing frame is provided with a guide rod perpendicular to the running direction of the handrail; The pressing wheel for pressing the handrail is installed on the wheel frame with a sleeve, and the wheel frame is sleeved on the guide rod through the sleeve to move along the guide rod; Tensioner for downforce; adjusting nut screwed to the guide rod at a position above the tensioner to compress or loosen the tensioner.

The guide rod is fixed on the fixing frame by screw elements.

The fixed frame is fixed with a guide rod mount perpendicular to the surface of the mount, and the guide rod runs through the guide rod mount and is fixed with a nut.

The guide rod is a screw rod, or at least a thread is provided in the area corresponding to the moving range of the adjusting nut.

The bottom end of the guide rod is provided with a limiting part to prevent the sleeve from falling off downward.

The bottom end of the guide rod expands to be larger than the inner diameter of the sleeve to form a limiting portion; or, a nut whose outer diameter is larger than the inner diameter of the sleeve is screwed on the bottom end of the guiding rod to form a limiting portion.

The sleeve is fixed on the wheel frame by welding.

The tension member is a compression spring.

A guide piece is respectively provided between the upper end of the tension member and the adjusting nut, and between the lower end and the sleeve.

A handrail system comprising the above-mentioned handrail belt tensioning device.

The utility model has a compact and simple structure, is safe and reliable, uses the guide rod and the sleeve to move in a directional manner, and will not be blocked by each other and cannot be adjusted; the guide rod and the sleeve can be selected from standard parts, which is convenient to manufacture and low in cost; The adjusting nuts and tensioning parts for adjusting the tension are located above the pressure wheel and the handrail, so the adjustment is simple, just disassemble the inner cover of the handrail, and there is no need to disassemble the steps, and the adjustment personnel do not need to lie on the bottom plate to operate .

Description of drawings

Fig. 1 is the installation and use state figure of the utility model.

FIG. 2 is a partially enlarged view of FIG. 1 .

FIG. 3 is a cross-sectional view along line A-A of FIG. 2 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1-3, the utility model is a handrail tensioning device 1, comprising:

The fixing frame 11 is used to fix the entire handrail tensioning device 1 on the truss 2 . The fixed frame 11 is provided with a guide rod 12 perpendicular to the running direction of the handrail belt 3 . The guide rod 12 can be fixed on the fixed frame 11 by a screw element, and can also be directly welded on the fixed frame 11 . In this embodiment, the fixed frame 11 is fixed with two guide rod mounts 111 by welding, the guide rod mounts 111 are perpendicular to the surface of the fixed frame 11, and the two guide rods 12 respectively penetrate through the guide rod mounts 111 from bottom to top. , and fixed with nut 121. The guide rod 12 is a screw, or at least threaded in the area corresponding to the moving range of the adjusting nut, so that the tension of the tension member can be adjusted by rotating the adjusting nut, and finally the pressure of the pressing wheel 13 on the handrail 3 can be adjusted. The bottom end of the guide rod 12 is provided with a stopper 122 that prevents the sleeve 141 from falling off downwards. Nuts can prevent the sleeve 141 from falling off downwards.

More than one pressing wheel 13 is used for pressing the handrail 3 tightly. In this embodiment, two pressing wheels 13 are used and installed on the wheel frame 14 with the sleeve 141, and the wheel frame 14 is covered by the sleeve 141. Connected to the guide rod 12 and can move up and down along the guide rod 12. The sleeve 141 is fixed on the back of the wheel frame 14 by welding, and the axle of the pinch wheel 13 is fixed on the front of the wheel frame 14 .

The tension member 15 is used to exert downward pressure on the sleeve 141 , thereby driving the pressing wheel 13 to compress the handrail 3 . In this embodiment, the tension member 15 is a compression spring, which is sleeved on the position above the wheel frame 14 of the guide rod 12 .

The adjusting nut 16 is used to compress or loosen the tension member 15 , which is screwed to the guide rod 12 and located above the tension member 15 .

The two ends of the tension member 15 can be directly in conflict with the adjusting nut 16 and the sleeve 141 respectively, or, in order to make the force more uniform, the upper end of the tension member 15 and the adjusting nut 16, and between the lower end and the sleeve 141 respectively set There is a guide piece 17, and the two ends of the tensioning piece 15 are in direct contact with the adjusting nut 16 and the sleeve 141 through the guide piece 17 respectively.

A handrail system including the above-mentioned handrail belt tensioning device 1 is shown in FIG. 1 . The entire handrail tensioning device 1 is fixed on the truss 2 through the fixing frame 11, the pressing wheel 13 is supported above the handrail 3, and then the adjusting nut 16 is rotated to compress or relax the tensioning member 15, and the sleeve 141 Appropriate downward pressure is applied, which is transmitted to the handrail 3 by the pressing wheel 13. The downward pressure that the handrail 3 receives is the total weight of the pressing wheel 13, the wheel frame 14, etc. as a whole and the downward force of the tension member 15. During installation, the frictional force between the adjusting nut 16 and the guide rod 12 can be measured with a torque wrench, and then the downforce of the tensioning member 15 can be quantified, or can be quantified by calculating the compression amount and elastic modulus of the tensioning member 15 The downforce of the tension member 15.

What have been described above are only some embodiments of the present utility model. For those skilled in the art, without departing from the inventive concept of the present utility model, some modifications and improvements can be made, and these all belong to the protection scope of the present utility model.

Claims (10)

1. A handrail tensioning device, characterized in that it comprises: a fixed frame that can be fixed on the truss, the fixed frame is provided with a guide bar perpendicular to the running direction of the handrail; more than one pressing wheel for pressing the handrail, Installed on the wheel frame with a sleeve, the wheel frame is sleeved on the guide rod through the sleeve and moves along the guide rod; it is sleeved on the tension member that exerts downward pressure on the sleeve above the guide rod above the wheel frame; The adjusting nut connected to the guide rod at the position above the tension member can compress or loosen the tension member. 2. The handrail tensioning device according to claim 1, characterized in that: the guide rod is fixed on the fixing frame by a screw element. 3. The handrail tensioning device according to claim 1 or 2, characterized in that: the fixed frame is fixed with a guide rod mounting seat perpendicular to the surface of the fixed frame, the guide rod runs through the guide rod mounting seat, and Secure with nuts. 4. The handrail tensioning device according to claim 1, wherein the guide rod is a screw, or at least a thread is provided in the area corresponding to the moving range of the adjusting nut. 5. The handrail tensioning device according to claim 1, characterized in that: the bottom end of the guide rod is provided with a limiting part to prevent the sleeve from falling off downward. 6. The handrail tensioning device according to claim 5, characterized in that: the bottom end of the guide rod expands to be larger than the inner diameter of the sleeve to form a limit portion; or, the bottom end of the guide rod is screwed with an outer diameter larger than A nut on the inner diameter of the sleeve forms a stop. 7. The handrail tensioning device according to claim 1, wherein the sleeve is fixed on the wheel frame by welding. 8. The handrail tensioning device according to claim 1, wherein the tensioning member is a compression spring. 9. The handrail tensioning device according to claim 1, characterized in that: a guide piece is provided between the upper end of the tensioning member and the adjusting nut, and between the lower end and the sleeve. 10. Handrail system comprising the handrail tensioning device according to any one of claims 1-9.