Telescopic protective device for portal scaffold

Abstract

The utility model provides a telescopic protective device for a portal scaffold, which is characterized in that the lower end of an upper left front vertical pipe, the lower end of an upper left rear vertical pipe, the lower end of an upper right front vertical pipe and the lower end of an upper right rear vertical pipe are respectively and vertically arranged in the upper end of a lower left front vertical pipe, the upper end of a lower left rear vertical pipe, the upper end of a lower right front vertical pipe and the upper end of a lower right rear vertical pipe in a telescopic manner; the lower end of the lower left front vertical pipe, the lower end of the lower left rear vertical pipe, the lower end of the lower right front vertical pipe and the lower end of the lower right rear vertical pipe are vertically and telescopically arranged in the upper ends of four stand columns of the gate-type scaffold respectively, so that when the gate-type scaffold is moved, the lower protection frame is moved downwards to be stored in the gate-type scaffold, and the upper protection frame is moved downwards to be stored in the lower protection frame. The lower protection frame is moved upwards to pull out the door type scaffold, and the upper protection frame is moved upwards to pull out the lower protection frame. The telescopic door-type scaffold can be mounted on the door-type scaffold and is telescopic, so that the telescopic door-type scaffold can be moved and used along with the door-type scaffold, and is simple and convenient to move and use.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to the technical field of safety protection, and specifically refers to a telescopic protection device for a door-type scaffold. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roof engineering construction, decoration engineering construction, etc.

[0003] A large number of gantry scaffolds are used to assist construction from the start of the secondary structure construction phase to the end of the construction. The gantry scaffolds are often installed, disassembled, and moved during use. When installing the gantry scaffolds, workers usually do not install the protective frame on their own for convenience, or neglect to check whether the protective frame is firmly installed, which creates hidden dangers and is the main cause of height fall accidents.

[0004] Therefore, it is desired to provide a retractable protective device for a portal scaffold, which can be installed on the portal scaffold and is retractable, so that it can be moved and used along with the portal scaffold, and is easy to move and use. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned prior art, one purpose of the utility model is to provide a retractable protective device for a portal scaffold, which can be installed on the portal scaffold and is retractable, so that it can be moved and used along with the portal scaffold, and is easy to move and use, and is suitable for large-scale promotion and application.

[0006] Another object of the utility model is to provide a telescopic protective device for a door-type scaffold, which has an ingenious design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.

[0007] In order to achieve the above purpose, the utility model provides a telescopic protective device for a portal scaffold, which is characterized in that it includes an upper protective frame and a lower protective frame, wherein:

[0008] The upper protection frame comprises an upper left front vertical tube, an upper left rear vertical tube, an upper right front vertical tube, an upper right rear vertical tube, an upper left longitudinal rod, an upper right longitudinal rod, an upper front cross rod and an upper rear cross rod, the upper left front vertical tube and the upper left rear vertical tube are all arranged at intervals from front to back, the upper left front vertical tube and the upper right front vertical tube and the upper left rear vertical tube are all arranged at intervals from left to right, and the upper left longitudinal rod and the upper right longitudinal rod are arranged at intervals from left to right. The upper front cross bar and the upper rear cross bar are arranged at intervals from front to back, the upper left longitudinal bar is respectively connected to the upper end of the upper left front vertical tube and the upper end of the upper left rear vertical tube, the upper right longitudinal bar is respectively connected to the upper end of the upper right front vertical tube and the upper end of the upper right rear vertical tube, the upper front cross bar is respectively connected to the upper end of the upper left front vertical tube and the upper end of the upper right front vertical tube, and the upper rear cross bar is respectively connected to the upper end of the upper left rear vertical tube and the upper end of the upper right rear vertical tube;

[0009] The lower protection frame comprises a lower left front vertical tube, a lower left rear vertical tube, a lower right front vertical tube, a lower right rear vertical tube, a lower left longitudinal rod, a lower right longitudinal rod, a lower front cross rod and a lower rear cross rod, the lower left front vertical tube and the lower left rear vertical tube as well as the lower right front vertical tube and the lower right rear vertical tube are all spaced apart from each other front to back, the lower left front vertical tube and the lower right front vertical tube as well as the lower left rear vertical tube and the lower right rear vertical tube are all spaced apart from each other left to right, and the lower left longitudinal rod and the lower right longitudinal rod are spaced apart from each other left to right, The lower front cross bar and the lower rear cross bar are spaced apart from each other front to back, the lower left longitudinal bar is respectively connected to the upper end of the lower left front vertical tube and the upper end of the lower left rear vertical tube, the lower right longitudinal bar is respectively connected to the upper end of the lower right front vertical tube and the upper end of the lower right rear vertical tube, the lower front cross bar is respectively connected to the upper end of the lower left front vertical tube and the upper end of the lower right front vertical tube, and the lower rear cross bar is respectively connected to the upper end of the lower left rear vertical tube and the upper end of the lower right rear vertical tube;

[0010] The lower end of the upper left front vertical tube, the lower end of the upper left rear vertical tube, the lower end of the upper right front vertical tube and the lower end of the upper right rear vertical tube are respectively vertically telescopically arranged in the upper end of the lower left front vertical tube, the upper end of the lower left rear vertical tube, the upper end of the lower right front vertical tube and the upper end of the lower right rear vertical tube, and the lower end of the lower left front vertical tube, the lower end of the lower left rear vertical tube, the lower end of the lower right front vertical tube and the lower right rear vertical tube are respectively used for vertically telescopically arranged in the upper ends of four columns of the portal scaffolding which are vertically arranged and arranged in the left and right directions.

[0011] Preferably, the upper protective frame also includes an upper left front elastic clamp, an upper left rear elastic clamp, an upper right front elastic clamp and an upper right rear elastic clamp, and the upper left front elastic clamp, the upper left rear elastic clamp, the upper right front elastic clamp and the upper right rear elastic clamp are respectively horizontally arranged on the outer side surface of the lower end of the upper left front vertical tube, the outer side surface of the lower end of the upper left rear vertical tube, the outer side surface of the lower end of the upper right front vertical tube and the outer side surface of the lower end of the upper right rear vertical tube, the side wall of the upper end of the lower left front vertical tube, the side wall of the upper end of the lower left rear vertical tube, the side wall of the upper end of the lower right front vertical tube and the side wall of the upper end of the lower right rear vertical tube. An upper left front clamping hole, an upper left rear clamping hole, an upper right front clamping hole and an upper right rear clamping hole are respectively horizontally arranged, and the lower ends of the upper left front vertical tube, the lower ends of the upper left rear vertical tube, the lower ends of the upper right front vertical tube and the lower ends of the upper right rear vertical tube are respectively vertically movably inserted in the upper ends of the lower left front vertical tube, the upper ends of the lower left rear vertical tube, the upper ends of the lower right front vertical tube and the upper ends of the lower right rear vertical tube, and the upper left front elastic clamping portion, the upper left rear elastic clamping portion, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are respectively horizontally clamped in the upper left front clamping hole, the upper left rear clamping hole, the upper right front clamping hole and the upper right rear clamping hole.

[0012] More preferably, the upper left front elastic clamping portion, the upper left rear elastic clamping portion, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are all spring heads.

[0013] More preferably, the number of the upper left front elastic clamping parts, the number of the upper left rear elastic clamping parts, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts are all multiple, and the multiple upper left front elastic clamping parts, the multiple upper left rear elastic clamping parts, the multiple upper right front elastic clamping parts and the multiple upper right rear elastic clamping parts are respectively horizontally arranged around the lower end of the upper left front vertical tube, the lower end of the upper left rear vertical tube, the lower end of the upper right front vertical tube and the lower end of the upper right rear vertical tube and are all arranged at intervals from each other, and the upper left front clamping parts The number of holes, the number of the upper left rear clamping holes, the number of the upper right front clamping holes and the number of the upper right rear clamping holes are respectively the same as the number of the upper left front elastic clamping parts, the number of the upper left rear elastic clamping parts, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts, and the upper left front elastic clamping part and the upper left front clamping hole, the upper left rear elastic clamping part and the upper left rear clamping hole, the upper right front elastic clamping part and the upper right front clamping hole, and the upper right rear elastic clamping part and the upper right rear clamping hole are all arranged in a one-to-one correspondence.

[0014] Furthermore, the number of the upper left front elastic clamping parts, the number of the upper left rear elastic clamping parts, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts are all 2, and the 2 upper left front elastic clamping parts, the 2 upper left rear elastic clamping parts, the 2 upper right front elastic clamping parts and the 2 upper right rear elastic clamping parts are all arranged at intervals from front to back.

[0015] Preferably, the lower protective frame further comprises a lower left front elastic clamping portion, a lower left rear elastic clamping portion, a lower right front elastic clamping portion and a lower right rear elastic clamping portion, wherein the lower left front elastic clamping portion, the lower left rear elastic clamping portion, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are respectively horizontally arranged on the outer side surface of the lower end of the lower left front vertical tube, the outer side surface of the lower end of the lower left rear vertical tube, the outer side surface of the lower end of the lower right front vertical tube and the outer side surface of the lower end of the lower right rear vertical tube, The lower end of the left front vertical tube, the lower end of the lower left rear vertical tube, the lower end of the lower right front vertical tube and the lower end of the lower right rear vertical tube are respectively used for vertically movably inserting in the upper ends of the four pillars, and the lower left front elastic clamping portion, the lower left rear elastic clamping portion, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are respectively used for horizontally clamping in the lower left front clamping hole, lower left rear clamping hole, lower right front clamping hole and lower right rear clamping hole which are respectively horizontally arranged in the side walls of the upper ends of the four pillars.

[0016] More preferably, the lower left front elastic clamping portion, the lower left rear elastic clamping portion, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are all spring heads.

[0017] More preferably, the number of the lower left front elastic clamping parts, the number of the lower left rear elastic clamping parts, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts are all multiple, and the multiple lower left front elastic clamping parts, the multiple lower left rear elastic clamping parts, the multiple lower right front elastic clamping parts and the multiple lower right rear elastic clamping parts are respectively horizontally arranged around the lower end of the lower left front vertical tube, the lower end of the lower left rear vertical tube, the lower end of the lower right front vertical tube and the lower end of the lower right rear vertical tube and are all arranged at intervals from each other, and the lower left front clamping parts The number of holes, the number of the lower left rear clamping holes, the number of the lower right front clamping holes and the number of the lower right rear clamping holes are respectively the same as the number of the lower left front elastic clamping parts, the number of the lower left rear elastic clamping parts, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts, and the lower left front elastic clamping part and the lower left front clamping hole, the lower left rear elastic clamping part and the lower left rear clamping hole, the lower right front elastic clamping part and the lower right front clamping hole, and the lower right rear elastic clamping part and the lower right rear clamping hole are all arranged in a one-to-one correspondence.

[0018] Furthermore, the number of the lower left front elastic clamping parts, the number of the lower left rear elastic clamping parts, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts are all 2, and the 2 lower left front elastic clamping parts, the 2 lower left rear elastic clamping parts, the 2 lower right front elastic clamping parts and the 2 lower right rear elastic clamping parts are all arranged at intervals from front to back.

[0019] Preferably, the upper protective frame also includes an upper left front sleeve, an upper right front sleeve, an upper left front plug rod and an upper right front plug rod, the upper left front sleeve and the upper right front sleeve are both vertically arranged and spaced apart from each other on the left and right sides, the upper left front sleeve and the upper right front sleeve are both located between the upper end of the upper left front vertical tube and the upper end of the upper right front vertical tube and are respectively connected to the upper end of the upper left front vertical tube and the upper end of the upper right front vertical tube, the upper left front plug rod and the upper right front plug rod are both vertically arranged and spaced apart from each other on the left and right sides It is arranged that the upper front cross bar is located between the upper end of the upper left front insertion rod and the upper end of the upper right front insertion rod, the left end and the right end of the upper front cross bar are respectively connected to the upper end of the upper left front insertion rod and the upper end of the upper right front insertion rod, the lower end of the upper left front insertion rod and the lower end of the upper right front insertion rod are respectively vertically movably inserted in the upper left front sleeve and the upper right front sleeve, and the left end of the upper front cross bar and the right end of the upper front cross bar are respectively against the upper left front sleeve and the upper right front sleeve;

[0020] The upper protective frame also includes an upper left rear sleeve, an upper right rear sleeve, an upper left rear plug rod and an upper right rear plug rod. The upper left rear sleeve and the upper right rear sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The upper left rear sleeve and the upper right rear sleeve are both located between the upper end of the upper left rear vertical tube and the upper end of the upper right rear vertical tube and are respectively connected to the upper end of the upper left rear vertical tube and the upper end of the upper right rear vertical tube. The upper left rear plug rod and the upper right rear plug rod are both vertically arranged and spaced apart from each other on the left and right sides. , the upper rear cross bar is located between the upper ends of the upper left rear insertion rod and the upper ends of the upper right rear insertion rod, the left end and the right end of the upper rear cross bar are respectively connected to the upper ends of the upper left rear insertion rod and the upper ends of the upper right rear insertion rod, the lower ends of the upper left rear insertion rod and the lower ends of the upper right rear insertion rod are respectively vertically movably inserted in the upper left rear sleeve and the upper right rear sleeve, the left end of the upper rear cross bar and the right end of the upper rear cross bar are respectively against the upper left rear sleeve and the upper right rear sleeve;

[0021] The lower protective frame also includes a lower left front sleeve, a lower right front sleeve, a lower left front plug rod and a lower right front plug rod. The lower left front sleeve and the lower right front sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The lower left front sleeve and the lower right front sleeve are both located between the upper end of the lower left front vertical tube and the upper end of the lower right front vertical tube and are respectively connected to the upper end of the lower left front vertical tube and the upper end of the lower right front vertical tube. The lower left front plug rod and the lower right front plug rod are both vertically arranged and spaced apart from each other on the left and right sides. , the lower front cross bar is located between the upper end of the lower left front insertion rod and the upper end of the lower right front insertion rod, the left end and the right end of the lower front cross bar are respectively connected to the upper end of the lower left front insertion rod and the upper end of the lower right front insertion rod, the lower end of the lower left front insertion rod and the lower end of the lower right front insertion rod are respectively vertically movably inserted in the lower left front sleeve and the lower right front sleeve, and the left end of the lower front cross bar and the right end of the lower front cross bar are respectively against the lower left front sleeve and the lower right front sleeve;

[0022] The lower protective frame also includes a lower left rear sleeve, a lower right rear sleeve, a lower left rear plug rod and a lower right rear plug rod. The lower left rear sleeve and the lower right rear sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The lower left rear sleeve and the lower right rear sleeve are both located between the upper end of the lower left rear vertical tube and the upper end of the lower right rear vertical tube and are respectively connected to the upper end of the lower left rear vertical tube and the upper end of the lower right rear vertical tube. The lower left rear plug rod and the lower right rear plug rod are both vertically arranged and spaced apart from each other on the left and right sides. The lower rear cross bar is located between the upper end of the lower left rear insertion rod and the upper end of the lower right rear insertion rod, the left end and the right end of the lower rear cross bar are respectively connected to the upper end of the lower left rear insertion rod and the upper end of the lower right rear insertion rod, the lower end of the lower left rear insertion rod and the lower end of the lower right rear insertion rod are respectively vertically movably inserted in the lower left rear sleeve and the lower right rear sleeve, and the left end of the lower rear cross bar and the right end of the lower rear cross bar are respectively against the lower left rear sleeve and the lower right rear sleeve.

[0023] The beneficial effects of the utility model are mainly:

[0024] 1. The lower end of the upper left front vertical pipe, the lower end of the upper left rear vertical pipe, the lower end of the upper right front vertical pipe and the lower end of the upper right rear vertical pipe of the telescopic protective device for the portal scaffold of the utility model are respectively vertically telescopically arranged at the upper end of the lower left front vertical pipe, the upper end of the lower left rear vertical pipe, the upper end of the lower right front vertical pipe and the upper end of the lower right rear vertical pipe, and the lower end of the lower left front vertical pipe, the lower end of the lower left rear vertical pipe, the lower end of the lower right front vertical pipe and the lower end of the lower right rear vertical pipe are respectively vertically telescopically arranged at the portal scaffold. The upper ends of the four columns of the scaffolding are arranged so that when the gantry scaffolding is moved, the lower protective frame is moved downward and stored in the gantry scaffolding, and the upper protective frame is moved downward and stored in the lower protective frame. When in use, the lower protective frame is moved upward and pulled out of the gantry scaffolding, and the upper protective frame is moved upward and pulled out of the lower protective frame. Therefore, it can be installed on the gantry scaffolding and is retractable, so that it can be moved and used along with the gantry scaffolding, and it is easy to move and use, and is suitable for large-scale promotion and application.

[0025] 2. The lower end of the upper left front vertical pipe, the lower end of the upper left rear vertical pipe, the lower end of the upper right front vertical pipe and the lower end of the upper right rear vertical pipe of the telescopic protective device for the portal scaffold of the utility model are respectively vertically telescopically arranged in the upper end of the lower left front vertical pipe, the upper end of the lower left rear vertical pipe, the upper end of the lower right front vertical pipe and the upper end of the lower right rear vertical pipe, and the lower end of the lower left front vertical pipe, the lower end of the lower left rear vertical pipe, the lower end of the lower right front vertical pipe and the lower end of the lower right rear vertical pipe are respectively vertically telescopically arranged in the upper ends of the four uprights of the portal scaffold, so that when the portal scaffold is moved, the lower protective frame is moved downward and stored in the portal scaffold, and the upper protective frame is moved downward and stored in the lower protective frame. When in use, the lower protective frame is moved upward and pulled out of the portal scaffold, and the upper protective frame is moved upward and pulled out of the lower protective frame. Therefore, the utility model has ingenious design, simple structure, simple manufacture, low manufacturing cost, and is suitable for large-scale promotion and application.

[0026] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and drawings, and can be achieved by the means, devices and their combinations specifically pointed out in the content of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The utility model is a left perspective schematic diagram of a specific embodiment of a telescopic protective device for a portal scaffold installed on a portal scaffold, wherein the utility model is in an extended state.

[0028] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the structure shown Figure 1 .

[0029] Figure 3 yes Figure 1 A partial enlarged schematic diagram of the structure shown Figure 2 .

[0030] Figure 4 yes Figure 1 The specific embodiment shown is a right perspective schematic diagram installed on a portal scaffold, wherein the utility model is in an extended state.

[0031] Figure 5 yes Figure 1 A schematic front view of an assembly of a lower left front sleeve, a lower right front sleeve, a lower left front insertion rod, a lower right front insertion rod and a lower front cross bar of the specific embodiment shown.

[0032] Figure 6 yes Figure 1 The illustrated embodiment is a left perspective schematic diagram mounted on a portal scaffold, wherein the utility model is in a retracted state.

[0033] (Explanation of symbols)

[0034] 1 upper protection frame; 101 upper left front vertical pipe; 102 upper left rear vertical pipe; 103 upper right front vertical pipe; 104 upper right rear vertical pipe; 105 upper left longitudinal rod; 106 upper right longitudinal rod; 107 upper left front elastic clamping part; 108 upper left rear elastic clamping part;

[0035] 2 lower protective frame; 201 lower left front vertical pipe; 202 lower left rear vertical pipe; 203 lower right front vertical pipe; 204 lower right rear vertical pipe; 205 lower left longitudinal rod; 206 lower right longitudinal rod; 207 lower front cross bar; 209 lower left front elastic clamping part; 210 lower left rear elastic clamping part; 213 lower left front sleeve; 214 lower right front sleeve; 215 lower left front plug rod; 216 lower right front plug rod;

[0036] 3-door scaffolding; 301 columns. DETAILED DESCRIPTION

[0037] In order to more clearly understand the technical content of the present invention, the following embodiments are given in detail.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] See also Figure 1 to Figure 5 As shown, in a specific embodiment of the utility model, the telescopic protective device for the portal scaffold of the utility model comprises an upper protective frame 1 and a lower protective frame 2, wherein:

[0040] The upper protection frame 1 includes an upper left front vertical tube 101, an upper left rear vertical tube 102, an upper right front vertical tube 103, an upper right rear vertical tube 104, an upper left longitudinal rod 105, an upper right longitudinal rod 106, an upper front cross bar (not shown in the figure) and an upper rear cross bar (not shown in the figure). The upper left front vertical tube 101 and the upper left rear vertical tube 102 as well as the upper right front vertical tube 103 and the upper right rear vertical tube 104 are all spaced apart from each other front to back, the upper left front vertical tube 101 and the upper right front vertical tube 103 as well as the upper left rear vertical tube 102 and the upper right rear vertical tube 104 are all spaced apart from each other left to right, and the upper left longitudinal rod 105 and the upper right longitudinal rod 106 are all spaced apart from each other left to right. The upper right longitudinal rod 106 is arranged at intervals from left to right, the upper front cross bar and the upper rear cross bar are arranged at intervals from front to back, the upper left longitudinal rod 105 is respectively connected to the upper end of the upper left front vertical tube 101 and the upper end of the upper left rear vertical tube 102, the upper right longitudinal rod 106 is respectively connected to the upper end of the upper right front vertical tube 103 and the upper end of the upper right rear vertical tube 104, the upper front cross bar is respectively connected to the upper end of the upper left front vertical tube 101 and the upper end of the upper right front vertical tube 103, and the upper rear cross bar is respectively connected to the upper end of the upper left rear vertical tube 102 and the upper end of the upper right rear vertical tube 104;

[0041] The lower protection frame 2 includes a lower left front vertical tube 201, a lower left rear vertical tube 202, a lower right front vertical tube 203, a lower right rear vertical tube 204, a lower left longitudinal rod 205, a lower right longitudinal rod 206, a lower front cross bar 207 and a lower rear cross bar. The lower left front vertical tube 201 and the lower left rear vertical tube 202 as well as the lower right front vertical tube 203 and the lower right rear vertical tube 204 are all spaced apart from each other front to back, the lower left front vertical tube 201 and the lower right front vertical tube 203 as well as the lower left rear vertical tube 202 and the lower right rear vertical tube 204 are all spaced apart from each other left to right, and the lower left longitudinal rod 205 and the lower right longitudinal rod 206 are left to right. The lower front cross bar 207 and the lower rear cross bar are spaced apart from each other front to back, the lower left longitudinal bar 205 is respectively connected to the upper end of the lower left front vertical tube 201 and the upper end of the lower left rear vertical tube 202, the lower right longitudinal bar 206 is respectively connected to the upper end of the lower right front vertical tube 203 and the upper end of the lower right rear vertical tube 204, the lower front cross bar 207 is respectively connected to the upper end of the lower left front vertical tube 201 and the upper end of the lower right front vertical tube 203, and the lower rear cross bar is respectively connected to the upper end of the lower left rear vertical tube 202 and the upper end of the lower right rear vertical tube 204;

[0042] The lower end of the upper left front vertical tube 101, the lower end of the upper left rear vertical tube 102, the lower end of the upper right front vertical tube 103 and the lower end of the upper right rear vertical tube 104 are respectively vertically telescopically arranged in the upper end of the lower left front vertical tube 201, the upper end of the lower left rear vertical tube 202, the upper end of the lower right front vertical tube 203 and the upper end of the lower right rear vertical tube 204, and the lower end of the lower left front vertical tube 201, the lower end of the lower left rear vertical tube 202, the lower right front vertical tube 203 and the lower right rear vertical tube 204 are respectively used to be vertically telescopically arranged in the upper ends of four columns 301 of the portal scaffolding 3 which are vertically arranged and arranged in the left and right directions.

[0043] The lower end of the upper left front vertical pipe 101, the lower end of the upper left rear vertical pipe 102, the lower end of the upper right front vertical pipe 103 and the lower end of the upper right rear vertical pipe 104 are respectively vertically telescopically arranged at the upper end of the lower left front vertical pipe 201, the upper end of the lower left rear vertical pipe 202, the upper end of the lower right front vertical pipe 203 and the upper end of the lower right rear vertical pipe 204, and any suitable structure can be adopted, see Figure 2 As shown, in a specific embodiment of the present utility model, the upper protective frame 1 also includes an upper left front elastic clamping portion 107, an upper left rear elastic clamping portion 108, an upper right front elastic clamping portion and an upper right rear elastic clamping portion, and the upper left front elastic clamping portion 107, the upper left rear elastic clamping portion 108, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are respectively horizontally arranged on the outer side surface of the lower end of the upper left front vertical tube 101, the outer side surface of the lower end of the upper left rear vertical tube 102, the outer side surface of the lower end of the upper right front vertical tube 103 and the outer side surface of the lower end of the upper right rear vertical tube 104, and the side wall of the upper end of the lower left front vertical tube 201, the side wall of the upper end of the lower left rear vertical tube 202, the side wall of the upper end of the lower right front vertical tube 203 and the side wall of the upper end of the lower right rear vertical tube 204 are respectively horizontally arranged on the outer side surface of the lower end of the upper left front vertical tube 201, the side wall of the upper end of the lower left rear vertical tube 202, the side wall of the upper end of the lower right front vertical tube 203 and the side wall of the upper end of the lower right rear vertical tube 204 An upper left front clamping hole (not shown in the figure), an upper left rear clamping hole (not shown in the figure), an upper right front clamping hole (not shown in the figure) and an upper right rear clamping hole (not shown in the figure) are provided. The lower end of the upper left front vertical tube 101, the lower end of the upper left rear vertical tube 102, the lower end of the upper right front vertical tube 103 and the lower end of the upper right rear vertical tube 104 are respectively vertically movably inserted in the upper end of the lower left front vertical tube 201, the upper end of the lower left rear vertical tube 202, the upper end of the lower right front vertical tube 203 and the upper end of the lower right rear vertical tube 204, and the upper left front elastic clamping portion 107, the upper left rear elastic clamping portion 108, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are respectively horizontally clamped in the upper left front clamping hole, the upper left rear clamping hole, the upper right front clamping hole and the upper right rear clamping hole.

[0044] The upper left front elastic clamping portion 107, the upper left rear elastic clamping portion 108, the upper right front elastic clamping portion and the upper right rear elastic clamping portion can be any suitable elastic clamping portion. In a specific embodiment of the present utility model, the upper left front elastic clamping portion 107, the upper left rear elastic clamping portion 108, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are all spring heads.

[0045] The spring head may have any suitable shape. In a specific embodiment of the present invention, the spring head is hemispherical.

[0046] The number of the upper left front elastic clamping parts 107, the number of the upper left rear elastic clamping parts 108, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts can be determined as needed. More preferably, the number of the upper left front elastic clamping parts 107, the number of the upper left rear elastic clamping parts 108, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts are all multiple, and the multiple upper left front elastic clamping parts 107, the multiple upper left rear elastic clamping parts 108, the multiple upper right front elastic clamping parts and the multiple upper right rear elastic clamping parts horizontally surround the lower end of the upper left front vertical tube 101, the lower end of the upper left rear vertical tube 102, the upper right front vertical tube 103 and the lower end of the upper left rear vertical tube 104. The lower end of the tube 103 and the lower end of the upper right rear vertical tube 104 are arranged and spaced apart from each other. The number of the upper left front clamping holes, the number of the upper left rear clamping holes, the number of the upper right front clamping holes and the number of the upper right rear clamping holes are respectively the same as the number of the upper left front elastic clamping parts 107, the number of the upper left rear elastic clamping parts 108, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts. The upper left front elastic clamping part 107 and the upper left front clamping hole, the upper left rear elastic clamping part 108 and the upper left rear clamping hole, the upper right front elastic clamping part and the upper right front clamping hole, and the upper right rear elastic clamping part and the upper right rear clamping hole are arranged one-to-one. The above-mentioned "multiple" means more than 2, please refer to Figure 2 As shown, in a specific embodiment of the present invention, the number of the upper left front elastic clamping parts 107, the number of the upper left rear elastic clamping parts 108, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts are all 2, and the two upper left front elastic clamping parts 107, the two upper left rear elastic clamping parts 108, the two upper right front elastic clamping parts and the two upper right rear elastic clamping parts are all arranged in a front-to-back spacing from each other.

[0047] The lower end of the lower left front vertical pipe 201, the lower end of the lower left rear vertical pipe 202, the lower end of the lower right front vertical pipe 203 and the lower end of the lower right rear vertical pipe 204 are respectively used to be vertically telescopically arranged in the upper ends of the four columns 301 of the door-type scaffold 3 arranged vertically and along the left and right directions, and any suitable structure can be adopted, see Figure 3 As shown, in a specific embodiment of the present invention, the lower protective frame 2 also includes a lower left front elastic clamping portion 209, a lower left rear elastic clamping portion 210, a lower right front elastic clamping portion and a lower right rear elastic clamping portion, and the lower left front elastic clamping portion 209, the lower left rear elastic clamping portion 210, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are respectively horizontally arranged on the outer side surface of the lower end of the lower left front vertical tube 201, the outer side surface of the lower end of the lower left rear vertical tube 202, the outer side surface of the lower end of the lower right front vertical tube 203 and the outer side surface of the lower end of the lower right rear vertical tube 204, and the lower left front vertical tube 201 The lower end of the lower left rear vertical tube 202, the lower end of the lower right front vertical tube 203 and the lower end of the lower right rear vertical tube 204 are respectively used for vertically movably inserting in the upper ends of the four pillars 301, and the lower left front elastic clamping portion 209, the lower left rear elastic clamping portion 210, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are respectively used for horizontally clamping in the lower left front clamping hole (not shown in the figure), the lower left rear clamping hole (not shown in the figure), the lower right front clamping hole (not shown in the figure) and the lower right rear clamping hole (not shown in the figure) which are respectively horizontally arranged in the side walls of the upper ends of the four pillars 301.

[0048] The lower left front elastic clamping portion 209, the lower left rear elastic clamping portion 210, the lower right front elastic clamping portion and the lower right rear elastic clamping portion can be any suitable elastic clamping portion. In a specific embodiment of the present utility model, the lower left front elastic clamping portion 209, the lower left rear elastic clamping portion 210, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are all spring heads.

[0049] The number of the lower left front elastic clamping parts 209, the number of the lower left rear elastic clamping parts 210, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts can be determined as needed. More preferably, the number of the lower left front elastic clamping parts 209, the number of the lower left rear elastic clamping parts 210, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts are all multiple, and the multiple lower left front elastic clamping parts 209, the multiple lower left rear elastic clamping parts 210, the multiple lower right front elastic clamping parts and the multiple lower right rear elastic clamping parts horizontally surround the lower end of the lower left front vertical tube 201, the lower end of the lower left rear vertical tube 202, the lower right front vertical tube 203 and the lower right rear vertical tube 204 respectively. The lower end of the tube 203 and the lower end of the lower right rear vertical tube 204 are arranged and spaced apart from each other. The number of the lower left front clamping holes, the number of the lower left rear clamping holes, the number of the lower right front clamping holes and the number of the lower right rear clamping holes are respectively the same as the number of the lower left front elastic clamping parts 209, the number of the lower left rear elastic clamping parts 210, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts. The lower left front elastic clamping parts 209 and the lower left front clamping holes, the lower left rear elastic clamping parts 210 and the lower left rear clamping holes, the lower right front elastic clamping parts and the lower right front clamping holes are arranged one by one. Please refer to Figure 3 As shown, in a specific embodiment of the utility model, the number of the lower left front elastic clamping parts 209, the number of the lower left rear elastic clamping parts 210, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts are all 2, and the two lower left front elastic clamping parts 209, the two lower left rear elastic clamping parts 210, the two lower right front elastic clamping parts and the two lower right rear elastic clamping parts are all arranged at intervals from front to back.

[0050] The upper front cross bar is respectively connected to the upper end of the upper left front vertical tube 101 and the upper end of the upper right front vertical tube 103, and any suitable structure can be adopted. In a specific embodiment of the utility model, the upper protective frame 1 also includes an upper left front sleeve (not shown in the figure), an upper right front sleeve (not shown in the figure), an upper left front plug rod (not shown in the figure) and an upper right front plug rod (not shown in the figure), the upper left front sleeve and the upper right front sleeve are both vertically arranged and spaced apart from each other on the left and right, the upper left front sleeve and the upper right front sleeve are both located between the upper end of the upper left front vertical tube 101 and the upper end of the upper right front vertical tube 103 and are respectively connected to the upper left The upper end of the front vertical tube 101 and the upper end of the upper right front vertical tube 103, the upper left front plug rod and the upper right front plug rod are all vertically arranged and spaced apart from each other on the left and right sides, the upper front cross bar is located between the upper end of the upper left front plug rod and the upper end of the upper right front plug rod, the left end and the right end of the upper front cross bar are respectively connected to the upper end of the upper left front plug rod and the upper end of the upper right front plug rod, the lower end of the upper left front plug rod and the lower end of the upper right front plug rod are respectively vertically movably inserted in the upper left front sleeve and the upper right front sleeve, the left end of the upper front cross bar and the right end of the upper front cross bar respectively abut against the upper left front sleeve and the upper right front sleeve.

[0051] The upper rear cross bar is respectively connected to the upper end of the upper left rear vertical tube 102 and the upper end of the upper right rear vertical tube 104, and any suitable structure can be adopted. In a specific embodiment of the utility model, the upper protective frame 1 also includes an upper left rear sleeve (not shown in the figure), an upper right rear sleeve (not shown in the figure), an upper left rear insertion rod (not shown in the figure) and an upper right rear insertion rod (not shown in the figure), the upper left rear sleeve and the upper right rear sleeve are both vertically arranged and spaced apart from each other on the left and right, the upper left rear sleeve and the upper right rear sleeve are both located between the upper end of the upper left rear vertical tube 102 and the upper end of the upper right rear vertical tube 104 and are respectively connected to the upper left The upper end of the rear vertical tube 102 and the upper end of the upper right rear vertical tube 104, the upper left rear plug rod and the upper right rear plug rod are all vertically arranged and spaced apart from each other on the left and right, the upper rear cross bar is located between the upper end of the upper left rear plug rod and the upper end of the upper right rear plug rod, the left end and the right end of the upper rear cross bar are respectively connected to the upper end of the upper left rear plug rod and the upper end of the upper right rear plug rod, the lower end of the upper left rear plug rod and the lower end of the upper right rear plug rod are respectively vertically movably inserted in the upper left rear sleeve and the upper right rear sleeve, the left end of the upper rear cross bar and the right end of the upper rear cross bar respectively abut against the upper left rear sleeve and the upper right rear sleeve.

[0052] The lower front cross bar 207 is connected to the upper end of the lower left front vertical pipe 201 and the upper end of the lower right front vertical pipe 203, and any suitable structure may be adopted. Figure 5As shown, in a specific embodiment of the utility model, the lower protective frame 2 also includes a lower left front sleeve 213, a lower right front sleeve 214, a lower left front plug rod 215 and a lower right front plug rod 216, the lower left front sleeve 213 and the lower right front sleeve 214 are both vertically arranged and spaced apart from each other on the left and right sides, the lower left front sleeve 213 and the lower right front sleeve 214 are both located between the upper end of the lower left front vertical pipe 201 and the upper end of the lower right front vertical pipe 203 and are respectively connected to the upper end of the lower left front vertical pipe 201 and the upper end of the lower right front vertical pipe 203, the lower left front plug rod 215 and the lower right front plug rod 216 are both vertically arranged The lower front cross bar 207 is arranged and spaced apart from each other on the left and right sides, the lower front cross bar 207 is located between the upper end of the lower left front insertion rod 215 and the upper end of the lower right front insertion rod 216, the left end and the right end of the lower front cross bar 207 are respectively connected to the upper end of the lower left front insertion rod 215 and the upper end of the lower right front insertion rod 216, the lower end of the lower left front insertion rod 215 and the lower end of the lower right front insertion rod 216 are respectively vertically movably inserted in the lower left front sleeve 213 and the lower right front sleeve 214, the left end of the lower front cross bar 207 and the right end of the lower front cross bar 207 are respectively against the lower left front sleeve 213 and the lower right front sleeve 214.

[0053] The lower rear cross bar is respectively connected to the upper end of the lower left rear vertical tube 202 and the upper end of the lower right rear vertical tube 204, and any suitable structure can be adopted. In a specific embodiment of the utility model, the lower protective frame 2 also includes a lower left rear sleeve, a lower right rear sleeve, a lower left rear plug rod and a lower right rear plug rod. The lower left rear sleeve and the lower right rear sleeve are both vertically arranged and spaced apart from each other on the left and right. The lower left rear sleeve and the lower right rear sleeve are both located between the upper end of the lower left rear vertical tube 202 and the upper end of the lower right rear vertical tube 204 and are respectively connected to the upper end of the lower left rear vertical tube 202 and the lower right rear vertical tube 204. At the upper end of the right rear vertical tube 204, the lower left rear plug rod and the lower right rear plug rod are both vertically arranged and spaced apart from each other on the left and right sides, the lower rear cross bar is located between the upper end of the lower left rear plug rod and the upper end of the lower right rear plug rod, the left end and the right end of the lower rear cross bar are respectively connected to the upper end of the lower left rear plug rod and the upper end of the lower right rear plug rod, the lower end of the lower left rear plug rod and the lower end of the lower right rear plug rod are respectively vertically movably inserted in the lower left rear sleeve and the lower right rear sleeve, the left end of the lower rear cross bar and the right end of the lower rear cross bar respectively abut against the lower left rear sleeve and the lower right rear sleeve.

[0054] During installation, taking a portal scaffold 3 arranged vertically and in the left-right direction as an example, the side walls of the upper ends of the four uprights 301 (respectively the left front upright, the left rear upright, the right front upright and the right rear upright) of the portal scaffold 3 are pre-arranged with a lower left front clamping hole, a lower left rear clamping hole, a lower right front clamping hole and a lower right rear clamping hole, respectively, corresponding to the lower left front elastic clamping portion 209, the lower left rear elastic clamping portion 210, the lower right front elastic clamping portion and the lower right rear elastic clamping portion, respectively, the lower left front elastic clamping portion 209, the lower left rear elastic clamping portion 210, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are horizontally pressed toward the lower end of the lower left front vertical tube 201, the lower end of the lower left rear vertical tube 202, the lower end of the lower right front vertical tube 203 and the lower end of the lower right rear vertical tube 204, respectively, and then the lower ends of the lower left front vertical tube 201, the lower left rear vertical tube The lower end of the lower right front vertical tube 202, the lower end of the lower right rear vertical tube 204 are respectively vertically inserted into the upper ends of the four columns 301, until the lower left front elastic clamping part 209, the lower left rear elastic clamping part 210, the lower right front elastic clamping part and the lower right rear elastic clamping part respectively reach the lower left front clamping hole, the lower left rear clamping hole, the lower right front clamping hole and the lower right rear clamping hole and then pop out horizontally, thereby horizontally clamping into the lower left front clamping hole, the lower left rear clamping hole, the lower right front clamping hole and the lower right rear clamping hole respectively, thereby fixing the lower protective frame 2 relative to the portal scaffolding 3. At this time, the upper left front elastic clamping part 107, the upper left rear elastic clamping part 108, the upper right front elastic clamping part and the upper right rear elastic clamping part are respectively horizontally clamped in the upper left front clamping hole, the upper left rear clamping hole, the upper right front clamping hole and the upper right rear clamping hole. In this state, protection can be carried out by the utility model.

[0055] When the door-type scaffold 3 needs to be moved, the lower left front elastic clamp 209, the lower left rear elastic clamp 210, the lower right front elastic clamp and the lower right rear elastic clamp are respectively pressed horizontally toward the lower end of the lower left front vertical pipe 201, the lower end of the lower left rear vertical pipe 202, the lower end of the lower right front vertical pipe 203 and the lower end of the lower right rear vertical pipe 204, so that they are horizontally withdrawn from the lower left front clamp hole, the lower left rear clamp hole, the lower right front clamp hole and the lower right rear clamp hole, and then the lower protective frame 2 is moved down to be stored in the door. In the scaffolding 3, the upper left front elastic clamping part 107, the upper left rear elastic clamping part 108, the upper right front elastic clamping part and the upper right rear elastic clamping part are respectively pressed horizontally toward the lower end of the upper left front vertical tube 101, the lower end of the upper left rear vertical tube 102, the lower end of the upper right front vertical tube 103 and the lower end of the upper right rear vertical tube 104, so that they are horizontally withdrawn from the upper left front clamping hole, the upper left rear clamping hole, the upper right front clamping hole and the upper right rear clamping hole, and then the upper protective frame 1 is moved downward to be received in the lower protective frame 2, as shown in FIG. Figure 6 As shown, it is convenient to move the door-type scaffold 3.

[0056] Therefore, the utility model provides a retractable protective device for a portal scaffold, which can be installed on the portal scaffold and is retractable relative to the portal scaffold, so that the protective frame can be moved and used together with the portal scaffold, so as to avoid the problem that construction workers omit the installation of the protective frame for convenience. The utility model is simple to operate, easy to use, easy to move, improves work efficiency, and reduces safety hazards.

[0057] In summary, the retractable protective device for a gantry scaffold of the utility model can be installed on the gantry scaffold and can be retracted, so that it can be moved and used along with the gantry scaffold. It is easy to move and use, has a clever design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.

[0058] It can be seen that the purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods can be modified arbitrarily. Therefore, the utility model includes all modified implementation methods based on the spirit and scope of the claims.

Claims

1. A retractable protective device for a portal scaffold, characterized in that: It includes an upper protective frame and a lower protective frame, wherein: The upper protection frame comprises an upper left front vertical tube, an upper left rear vertical tube, an upper right front vertical tube, an upper right rear vertical tube, an upper left longitudinal rod, an upper right longitudinal rod, an upper front cross rod and an upper rear cross rod, the upper left front vertical tube and the upper left rear vertical tube are all arranged at intervals from front to back, the upper left front vertical tube and the upper right front vertical tube and the upper left rear vertical tube are all arranged at intervals from left to right, and the upper left longitudinal rod and the upper right longitudinal rod are arranged at intervals from left to right. The upper front cross bar and the upper rear cross bar are arranged at intervals from front to back, the upper left longitudinal bar is respectively connected to the upper end of the upper left front vertical tube and the upper end of the upper left rear vertical tube, the upper right longitudinal bar is respectively connected to the upper end of the upper right front vertical tube and the upper end of the upper right rear vertical tube, the upper front cross bar is respectively connected to the upper end of the upper left front vertical tube and the upper end of the upper right front vertical tube, and the upper rear cross bar is respectively connected to the upper end of the upper left rear vertical tube and the upper end of the upper right rear vertical tube; The lower protection frame comprises a lower left front vertical tube, a lower left rear vertical tube, a lower right front vertical tube, a lower right rear vertical tube, a lower left longitudinal rod, a lower right longitudinal rod, a lower front cross rod and a lower rear cross rod, the lower left front vertical tube and the lower left rear vertical tube as well as the lower right front vertical tube and the lower right rear vertical tube are all spaced apart from each other front to back, the lower left front vertical tube and the lower right front vertical tube as well as the lower left rear vertical tube and the lower right rear vertical tube are all spaced apart from each other left to right, and the lower left longitudinal rod and the lower right longitudinal rod are spaced apart from each other left to right, The lower front cross bar and the lower rear cross bar are spaced apart from each other front to back, the lower left longitudinal bar is respectively connected to the upper end of the lower left front vertical tube and the upper end of the lower left rear vertical tube, the lower right longitudinal bar is respectively connected to the upper end of the lower right front vertical tube and the upper end of the lower right rear vertical tube, the lower front cross bar is respectively connected to the upper end of the lower left front vertical tube and the upper end of the lower right front vertical tube, and the lower rear cross bar is respectively connected to the upper end of the lower left rear vertical tube and the upper end of the lower right rear vertical tube; The lower end of the upper left front vertical tube, the lower end of the upper left rear vertical tube, the lower end of the upper right front vertical tube and the lower end of the upper right rear vertical tube are respectively vertically telescopically arranged in the upper end of the lower left front vertical tube, the upper end of the lower left rear vertical tube, the upper end of the lower right front vertical tube and the upper end of the lower right rear vertical tube, and the lower end of the lower left front vertical tube, the lower end of the lower left rear vertical tube, the lower end of the lower right front vertical tube and the lower right rear vertical tube are respectively used for vertically telescopically arranged in the upper ends of four columns of the portal scaffolding which are vertically arranged and arranged in the left and right directions.

2. The telescopic protective device for a portal scaffold as claimed in claim 1, characterized in that: The upper protective frame also includes an upper left front elastic clamp, an upper left rear elastic clamp, an upper right front elastic clamp and an upper right rear elastic clamp, the upper left front elastic clamp, the upper left rear elastic clamp, the upper right front elastic clamp and the upper right rear elastic clamp are respectively horizontally arranged on the outer side surface of the lower end of the upper left front vertical tube, the outer side surface of the lower end of the upper left rear vertical tube, the outer side surface of the lower end of the upper right front vertical tube and the outer side surface of the lower end of the upper right rear vertical tube, and the side wall of the upper end of the lower left front vertical tube, the side wall of the upper end of the lower left rear vertical tube, the side wall of the upper end of the lower right front vertical tube and the side wall of the upper end of the lower right rear vertical tube are respectively An upper left front clamping hole, an upper left rear clamping hole, an upper right front clamping hole and an upper right rear clamping hole are horizontally arranged, and the lower ends of the upper left front vertical tube, the lower ends of the upper left rear vertical tube, the lower ends of the upper right front vertical tube and the lower ends of the upper right rear vertical tube are respectively vertically movably inserted in the upper ends of the lower left front vertical tube, the upper ends of the lower left rear vertical tube, the upper ends of the lower right front vertical tube and the upper ends of the lower right rear vertical tube, and the upper left front elastic clamping portion, the upper left rear elastic clamping portion, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are respectively horizontally clamped in the upper left front clamping hole, the upper left rear clamping hole, the upper right front clamping hole and the upper right rear clamping hole.

3. The telescopic protective device for a portal scaffold as claimed in claim 2, characterized in that: The upper left front elastic clamping portion, the upper left rear elastic clamping portion, the upper right front elastic clamping portion and the upper right rear elastic clamping portion are all spring heads.

4. The telescopic protective device for a portal scaffold as claimed in claim 2, characterized in that: The number of the upper left front elastic clamping parts, the number of the upper left rear elastic clamping parts, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts are all multiple, and the multiple upper left front elastic clamping parts, the multiple upper left rear elastic clamping parts, the multiple upper right front elastic clamping parts and the multiple upper right rear elastic clamping parts are respectively arranged horizontally around the lower end of the upper left front vertical tube, the lower end of the upper left rear vertical tube, the lower end of the upper right front vertical tube and the lower end of the upper right rear vertical tube and are all arranged at intervals from each other, and the upper left front clamping hole The number of the upper left rear card holes, the number of the upper right front card holes and the number of the upper right rear card holes are respectively the same as the number of the upper left front elastic card parts, the number of the upper left rear elastic card parts, the number of the upper right front elastic card parts and the number of the upper right rear elastic card parts, and the upper left front elastic card part and the upper left front card hole, the upper left rear elastic card part and the upper left rear card hole, the upper right front elastic card part and the upper right front card hole, and the upper right rear elastic card part and the upper right rear card hole are all arranged in a one-to-one correspondence.

5. The telescopic protective device for a portal scaffold as claimed in claim 4, characterized in that: The number of the upper left front elastic clamping parts, the number of the upper left rear elastic clamping parts, the number of the upper right front elastic clamping parts and the number of the upper right rear elastic clamping parts are all 2, and the 2 upper left front elastic clamping parts, the 2 upper left rear elastic clamping parts, the 2 upper right front elastic clamping parts and the 2 upper right rear elastic clamping parts are all arranged with a distance from each other front to back.

6. The telescopic protective device for a portal scaffold as claimed in claim 1, characterized in that: The lower protective frame also includes a lower left front elastic clamp, a lower left rear elastic clamp, a lower right front elastic clamp and a lower right rear elastic clamp, the lower left front elastic clamp, the lower left rear elastic clamp, the lower right front elastic clamp and the lower right rear elastic clamp are respectively horizontally arranged on the outer side surface of the lower end of the lower left front vertical tube, the outer side surface of the lower end of the lower left rear vertical tube, the outer side surface of the lower end of the lower right front vertical tube and the outer side surface of the lower end of the lower right rear vertical tube. The lower end of the vertical tube, the lower end of the lower left rear vertical tube, the lower end of the lower right front vertical tube and the lower end of the lower right rear vertical tube are respectively used for vertically movably inserting in the upper ends of the four columns, and the lower left front elastic clamping portion, the lower left rear elastic clamping portion, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are respectively used for horizontally clamping in the lower left front clamping hole, the lower left rear clamping hole, the lower right front clamping hole and the lower right rear clamping hole which are respectively horizontally arranged in the side walls of the upper ends of the four columns.

7. The telescopic protective device for a portal scaffold as claimed in claim 6, characterized in that: The lower left front elastic clamping portion, the lower left rear elastic clamping portion, the lower right front elastic clamping portion and the lower right rear elastic clamping portion are all spring heads.

8. The telescopic protective device for a portal scaffold as claimed in claim 6, characterized in that: The number of the lower left front elastic clamping parts, the number of the lower left rear elastic clamping parts, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts are all multiple, and the multiple lower left front elastic clamping parts, the multiple lower left rear elastic clamping parts, the multiple lower right front elastic clamping parts and the multiple lower right rear elastic clamping parts are respectively arranged horizontally around the lower end of the lower left front vertical tube, the lower end of the lower left rear vertical tube, the lower end of the lower right front vertical tube and the lower end of the lower right rear vertical tube and are all arranged at intervals from each other, and the lower left front clamping hole The number of the lower left rear card holes, the number of the lower right front card holes and the number of the lower right rear card holes are respectively the same as the number of the lower left front elastic card parts, the number of the lower left rear elastic card parts, the number of the lower right front elastic card parts and the number of the lower right rear elastic card parts, and the lower left front elastic card part and the lower left front card hole, the lower left rear elastic card part and the lower left rear card hole, the lower right front elastic card part and the lower right front card hole, and the lower right rear elastic card part and the lower right rear card hole are all arranged in a one-to-one correspondence.

9. The telescopic protective device for a portal scaffold as claimed in claim 8, characterized in that: The number of the lower left front elastic clamping parts, the number of the lower left rear elastic clamping parts, the number of the lower right front elastic clamping parts and the number of the lower right rear elastic clamping parts are all 2, and the 2 lower left front elastic clamping parts, the 2 lower left rear elastic clamping parts, the 2 lower right front elastic clamping parts and the 2 lower right rear elastic clamping parts are all arranged at intervals from front to back.

10. The telescopic protective device for a portal scaffold as claimed in claim 1, characterized in that: The upper protective frame also includes an upper left front sleeve, an upper right front sleeve, an upper left front plug rod and an upper right front plug rod. The upper left front sleeve and the upper right front sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The upper left front sleeve and the upper right front sleeve are both located between the upper end of the upper left front vertical tube and the upper end of the upper right front vertical tube and are respectively connected to the upper end of the upper left front vertical tube and the upper end of the upper right front vertical tube. The upper left front plug rod and the upper right front plug rod are both vertically arranged and spaced apart from each other on the left and right sides. , the upper front cross bar is located between the upper end of the upper left front plug rod and the upper end of the upper right front plug rod, the left end and the right end of the upper front cross bar are respectively connected to the upper end of the upper left front plug rod and the upper end of the upper right front plug rod, the lower end of the upper left front plug rod and the lower end of the upper right front plug rod are respectively vertically movably inserted in the upper left front sleeve and the upper right front sleeve, and the left end of the upper front cross bar and the right end of the upper front cross bar are respectively against the upper left front sleeve and the upper right front sleeve; The upper protective frame also includes an upper left rear sleeve, an upper right rear sleeve, an upper left rear plug rod and an upper right rear plug rod. The upper left rear sleeve and the upper right rear sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The upper left rear sleeve and the upper right rear sleeve are both located between the upper end of the upper left rear vertical tube and the upper end of the upper right rear vertical tube and are respectively connected to the upper end of the upper left rear vertical tube and the upper end of the upper right rear vertical tube. The upper left rear plug rod and the upper right rear plug rod are both vertically arranged and spaced apart from each other on the left and right sides. , the upper rear cross bar is located between the upper ends of the upper left rear insertion rod and the upper ends of the upper right rear insertion rod, the left end and the right end of the upper rear cross bar are respectively connected to the upper ends of the upper left rear insertion rod and the upper ends of the upper right rear insertion rod, the lower ends of the upper left rear insertion rod and the lower ends of the upper right rear insertion rod are respectively vertically movably inserted in the upper left rear sleeve and the upper right rear sleeve, the left end of the upper rear cross bar and the right end of the upper rear cross bar are respectively against the upper left rear sleeve and the upper right rear sleeve; The lower protective frame also includes a lower left front sleeve, a lower right front sleeve, a lower left front plug rod and a lower right front plug rod. The lower left front sleeve and the lower right front sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The lower left front sleeve and the lower right front sleeve are both located between the upper end of the lower left front vertical tube and the upper end of the lower right front vertical tube and are respectively connected to the upper end of the lower left front vertical tube and the upper end of the lower right front vertical tube. The lower left front plug rod and the lower right front plug rod are both vertically arranged and spaced apart from each other on the left and right sides. , the lower front cross bar is located between the upper end of the lower left front insertion rod and the upper end of the lower right front insertion rod, the left end and the right end of the lower front cross bar are respectively connected to the upper end of the lower left front insertion rod and the upper end of the lower right front insertion rod, the lower end of the lower left front insertion rod and the lower end of the lower right front insertion rod are respectively vertically movably inserted in the lower left front sleeve and the lower right front sleeve, and the left end of the lower front cross bar and the right end of the lower front cross bar are respectively against the lower left front sleeve and the lower right front sleeve; The lower protective frame also includes a lower left rear sleeve, a lower right rear sleeve, a lower left rear plug rod and a lower right rear plug rod. The lower left rear sleeve and the lower right rear sleeve are both vertically arranged and spaced apart from each other on the left and right sides. The lower left rear sleeve and the lower right rear sleeve are both located between the upper end of the lower left rear vertical tube and the upper end of the lower right rear vertical tube and are respectively connected to the upper end of the lower left rear vertical tube and the upper end of the lower right rear vertical tube. The lower left rear plug rod and the lower right rear plug rod are both vertically arranged and spaced apart from each other on the left and right sides. The lower rear cross bar is located between the upper end of the lower left rear insertion rod and the upper end of the lower right rear insertion rod, the left end and the right end of the lower rear cross bar are respectively connected to the upper end of the lower left rear insertion rod and the upper end of the lower right rear insertion rod, the lower end of the lower left rear insertion rod and the lower end of the lower right rear insertion rod are respectively vertically movably inserted in the lower left rear sleeve and the lower right rear sleeve, and the left end of the lower rear cross bar and the right end of the lower rear cross bar are respectively against the lower left rear sleeve and the lower right rear sleeve.

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