Fall arrest connection device

Abstract

A fall arrestor connection device includes a hanging base with a crossbar and side bars on its left and right sides. Each side bar includes a connected rod portion and a sleeve. A latch hole is formed in each sleeve. A latch seat is formed on the surface of the rod portion and sleeve of one of the side bars. A communication port leading to the latch hole is formed in the latch seat. A movable latch is engaged in the latch seat. The latch's engaging portion extends into the latch hole from the communication port. A movable latch is detachably inserted into the two latch holes. The latch rod has a locking groove for the latch's engaging portion to be inserted, so that the latch can fix the axial position of the movable latch. This utility model, by setting the latch on one side of the hanging base, allows the user to operate the latch to move out of the communication port while holding the hanging base, making the operation of opening the movable latch more convenient.

Description

Technical Field

[0001] This utility model relates to a connection device for a fall protection safety device; in particular, it refers to a fall protection connection device. Background Technology

[0002] Existing fall arrestor connection devices, such as the TW patent certificate No. M506176 "Fall Arrestor Connection Device," include a suspension base, a movable latch, a first control group, and a second control group. In use, the movable latch passes through the first and second holes of the suspension base with the harness, closing the notch in the suspension base. The suspension base is hooked onto the fall arrestor's lifting lugs. The suspension base is equipped with a first control group, and the shaft is equipped with a second control group. The first and second control groups respectively control whether the movable latch can move axially to open the notch in the suspension base.

[0003] While the existing fall arrestor connection device can achieve the goal of opening the notch of the suspension seat by simultaneously operating both the first and second control groups, the location of the first control group is far from where the user holds the suspension seat, making it inconvenient to operate the first control group with the same hand holding the suspension seat. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a fall prevention connection device that uses a latch to fix the movable latch, and the latch is set at the position of the hanging base, so that the user can easily operate the latch to release the movable latch while holding the hanging base, thereby making it convenient for the user to use.

[0005] To achieve the above objectives, this utility model provides a fall protection connection device, including a hanging base, a latch, and a movable latch. The hanging base has a horizontal bar, with side bars connected to both ends of the horizontal bar. A recess is formed between the two side bars and the horizontal bar, and the recess has a notch. Each of the two side bars includes a rod portion and a sleeve. Each rod portion is connected to the horizontal bar, and each sleeve is connected to the end of each rod portion opposite to the horizontal bar. Each sleeve has a latch hole, and the two latch holes are located opposite each other on both sides of the notch. A latch seat is formed on the surface of one of the two side bars. One side of the latch seat is connected to the sleeve, and the other side is connected to the rod portion. A communication opening is formed at the portion of the latch seat connected to the sleeve, and the communication opening leads to the latch hole of the side bar.

[0006] The latch is engaged with the latch seat and is movable between a locked position and a released position; the latch has an engaging portion, which extends from the communication port into the corresponding latch hole when the latch is in the locked position; when the latch is in the released position, the engaging portion moves out of the communication port. The movable latch has a latch bar, which is detachably inserted through the two latch holes to close the notch; an engaging groove is formed on the outer peripheral surface of the latch bar, which faces the communication port; the engaging portion of the latch is inserted into the engaging groove, thereby fixing the axial position of the movable latch.

[0007] In use, the movable latch is threaded through the harness, and the hanging seat is hooked onto the fall arrestor's lugs. When it is necessary to open the notch of the hanging seat, the user operates the latch from the locked position to the released position, causing the latch to disengage from the engaging groove, thereby releasing the movable latch and allowing it to move axially to open the notch of the hanging seat. The advantage of this invention is that the latch seat, which has the latch installed, is connected to the sleeve and rod of one of the side rods, making the latch position close to the user's hand holding the hanging seat, allowing the user to operate the latch simultaneously with the hand holding the hanging seat, making it more convenient to use. Attached Figure Description

[0008] Figure 1 This is a perspective view of a preferred embodiment of the present invention.

[0009] Figure 2 This is an exploded view of the preferred embodiment of the present invention.

[0010] Figure 3 for Figure 1 Side view.

[0011] Figure 4 for Figure 3 A cross-sectional view along the 4-4 direction.

[0012] Figure 5 for Figure 3 A cross-sectional view along the 5-5 direction.

[0013] Figure 6 for Figure 5 A diagram illustrating the action of pressing the latch.

[0014] Figure 7 This is a schematic diagram illustrating the action of simultaneously pressing the latch and the button.

[0015] Figure 8 A schematic diagram illustrating the action of opening the notch of the hanging seat to remove the movable latch.

[0016] Explanation of reference numerals in the attached figures

[0017] 100: Fall arrestor connection device

[0018] 10: Hanging bracket

[0019] 12: Crossbar

[0020] 14: Side pole

[0021] 141: Pole section

[0022] 142: Sleeve

[0023] 143: Bolt through hole

[0024] 16: Latch seat

[0025] 161: Latch slot

[0026] 162: Circumferential Wall

[0027] 1621: Fixing hole

[0028] 163: Connector

[0029] 164: Spring seat

[0030] 30: Locking Component

[0031] 32: latch

[0032] 321: Shaft hole

[0033] 322: Fastening part

[0034] 34: Shaft

[0035] 36: Compression spring

[0036] 40: Movable latch

[0037] 42: Latch

[0038] 421: Engagement slot

[0039] 422: Card Hole

[0040] 44: Head

[0041] 441: Button slot

[0042] 442: Locating pin hole

[0043] 443: Positioning pin

[0044] 46: Cards

[0045] 48: Control lever

[0046] 481: Columnar portion

[0047] 482: Tapered section

[0048] 483: Button

[0049] 484: Positioning trench

[0050] 49: Return spring

[0051] L: Axial direction

[0052] P1: Lock position

[0053] P2: Release position

[0054] S: concave part

[0055] S1: Gap

[0056] S2: Storage space Detailed Implementation

[0057] To more clearly illustrate this utility model, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figures 1 to 5 The image shows a preferred embodiment of the fall arrestor connection device 100 of this utility model. In use, it is fixed to a harness for attachment to the fall arrestor's lugs. The following description of the fall arrestor connection device 100 is based on the user's orientation when the device is attached to the harness, facing the device in the vertical and horizontal directions. The fall arrestor connection device 100 includes a hanging base 10, a locking component 30, and a movable latch 40, wherein:

[0058] The hanging base 10 includes a horizontal bar 12, which is a straight bar extending in a left-right direction. Side bars 14 are connected to the left and right ends of the horizontal bar 12, respectively. A recess S is formed between the two side bars 14 and the horizontal bar 12, and the recess S has a notch S1. Each of the two side bars 14 includes a rod portion 141 and a sleeve 142. The lower end of each rod portion 141 is connected to one end of the left or right end of the horizontal bar 12, and each sleeve 142 is connected to the end of each rod portion 141 facing away from the horizontal bar 12, that is, to the upper end of each rod portion 141. Each sleeve 142 has a latch hole 143, and the two latch holes 143 are located opposite each other on both sides of the notch S1.

[0059] A latch seat 16 is formed on the front surface of the left-side side rod 14. The latch seat 16 is a seat that extends generally in the vertical direction, and its upper and lower sides are respectively connected to the left-side sleeve 142 and rod portion 141. Specifically, the latch seat 16 includes a latch groove 161 and an annular wall 162. The annular wall 162 surrounds the latch groove 161. A connecting opening 163 is formed at the portion of the latch seat 16 connected to the left-side sleeve 142. The connecting opening 163 connects the latch groove 161 to the left-side latch through hole 143. A spring seat 164 is formed at the portion of the latch groove 161 connected to the left-side rod portion 141. The spring seat 164 is a circular groove.

[0060] The locking assembly 30 includes a latch 32, a shaft 34, and a compression spring 36. The latch 32 is an elongated block that fits the shape of the latch groove 161. The latch 32 is attached to the latch seat 16 and is movable between a locked position P1 and a released position P2. When the latch 32 is in its natural state and not subjected to external force, it is in the locked position P1. Specifically, the latch 32 is inserted into the latch groove 161 and has a shaft hole 321 in the middle. On the left and right sides corresponding to the location of the shaft hole 321, a fixing hole 1621 is formed on each of the opposite sides of the annular wall 162.

[0061] The middle of the shaft 34 is pivotally inserted into the shaft hole 321 of the latch 32, and both ends of the shaft 34 are respectively fixed to the fixing holes 1621. A fastening part 322 is formed by protruding from the upper side of the latch 32 facing the latch seat 16. The fastening part 322 extends from the communication port 163 into the latch through hole 143 on the left side. At this time, the latch 32 is in the above-mentioned locked position P1.

[0062] The compression spring 36 is disposed on the spring seat 164, and the compression spring 36 pushes the latch 32 on the other side of the latch 322, that is, the lower side of the latch 32. By continuously pushing the lower side of the latch 32 with the compression spring 36, the latch 32 maintains a state in which the latching part 322 passes through the communication opening 163 and extends into the latch hole 143 on the left side, in a natural state without external pressure. Please refer to... Figure 2 , Figure 5 and Figure 6As shown, when the user presses the lower side of the latch 32, the latch 32 rotates around the central shaft 34, causing the upper side of the latch 32 to move outward, thereby moving the engaging part 322 out of the communication port 163. At this time, the latch 32 is in the aforementioned released position P2. The above design allows the user to press the lower side of the latch 32 while holding the hanging base 10, and by pressing the lower side of the latch 32, the latch 32 changes from the locked position P1 to the released position P2.

[0063] The movable latch 40 includes a latch bar 42 and a head 44. The latch bar 42 is a straight bar extending in the left-right direction. An axial direction L is defined with respect to the extension direction of the center line of the latch bar 42. The latch bar 42 is detachably inserted through the two latch holes 143. The latch bar 42 spans across the left and right sleeves 142 to close the notch S1, thereby restricting the entry and exit of objects such as the lugs of a fall arrester through the notch S1. Specifically, the right end of the latch bar 42 is inserted through the right latch hole 143, and the left end of the latch bar 42 is inserted through the left latch hole 143. Corresponding to the location of the communication port 163, a locking groove 421 is formed on the outer peripheral surface of the left end of the latch bar 42. The locking groove 421 is positioned directly opposite the communication port 163, so that when the latching part 322 of the latch 32 extends into the left latch hole 143, it is engaged in the locking groove 421 of the latch bar 42. Thus, the latch 32 fixes the axial position of the movable latch 40, keeping the latch bar 42 in the closed state of the notch S1.

[0064] The head 44 is connected to the right end of the latch 42, and the head 44 stops at the outside of the right sleeve 142. A button groove 441 is formed in the center of the outer end face of the head 44. The button groove 441 is an elongated groove extending along the axial direction L of the latch 42, and the inner end of the button groove 441 is a closed end that extends into the latch 42. A locking hole 422 is formed on both sides of the outer peripheral surface of the latch 42. The locking hole 422 is located adjacent to the right end of the latch 42, and the locking hole 422 communicates with the button groove 441. A locking member 46 is provided in each locking hole 422. Each locking member 46 is a ball, and a part of each locking member 46 protrudes from the surface of the latch 42 and engages with the inside of the right sleeve 142.

[0065] A button 483 is provided on the head 44 to control the protruding or retracted state of each of the latches 46. Specifically, an operating lever 48 is inserted through the button slot 441. The operating lever 48 has a columnar portion 481 and a conical portion 482. The outer peripheral surface of the columnar portion 481 abuts against the two latches 46, and the outer peripheral surface of the conical portion 482 forms an accommodating space S2 for accommodating another part of each of the latches 46. The outer end of the operating lever 48 protrudes from the outer end face of the head 44. The button 483 is formed at the outer end of the operating lever 48. A return spring 49 is provided between the inner end of the operating lever 48 and the inner end of the button slot 441. When the button 483 is pressed by the user, the return spring 49 will push the operating lever 48 and its button 483 back to their original position when the button 483 is released. At this time, the columnar portion 481 of the operating lever 48 returns to the position where a part of each of the clips 46 can be pushed out of each of the clip holes 422.

[0066] A positioning groove 484 is formed on the outer peripheral surface of the portion of the operating lever 48 located within the head 44. The positioning groove 484 is an elongated groove extending along the axial direction L of the latch 42. A positioning pin hole 442 is formed on the outer peripheral surface of the head 44. The positioning pin hole 442 communicates with the button groove 441. A positioning pin 443 is engaged in the positioning pin hole 442. The inner end of the positioning pin 443 extends into the positioning groove 484, restricting the range of movement of the operating lever 48 along the axial direction L. When the button 483 is not pressed, the columnar portion 481 of the operating lever 48 controls each of the latches 46 to protrude from the surface of the latch 42. When the button 483 is pressed, the operating lever 48 is driven, causing the columnar part 481 to move away from the position abutting against the two locking pieces 46 and the conical part 482 to move to the inside of the two locking holes 422, releasing each locking piece 46 so that it can retract into the locking hole 422.

[0067] Please refer to Figure 1 As shown, when the preferred embodiment of this utility model is used, the movable latch 40 is passed through the back harness, and the crossbar 12 and the two side bars 14 of the suspension base 10 can be hooked onto the lifting lugs of the fall arrestor. Please refer to... Figure 7 and Figure 8As shown, when it is necessary to open the notch S1 of the hanging base 10, the user presses the lower side of the latch 32, causing the latching part 322 to disengage from the state of being embedded in the engaging groove 421, thereby releasing the movable latch 40. At the same time, the user presses the button 483, causing each of the locking pieces 46 to no longer engage with the inner side of the right sleeve 142. Since the latch 32 and each of the locking pieces 46 no longer restrict the axial movement of the movable latch 40, the movable latch 40 can then be pulled out to the right, causing the latch bar 42 to disengage from the latch through hole 14 on the left side, opening the movable latch 40 and opening the notch S1. When the user operates the latch 32, as... Figure 2 As shown, since the latch seat 16 of the latch 32 is connected to the sleeve 142 and the rod 141 on the left side, the position of the latch 32 is close to the position where the user holds the hanging seat 10. This allows the user to hold the left side of the hanging seat 10 and press the latch 32 with their thumb to release the movable latch 40, making it more convenient to open the movable latch 40.

[0068] In addition to the preferred embodiment described above, in which the latch seat 16 is formed on the front surface of the left-side side rod 14, and the locking component 30 is installed on the latch seat 16 to enable the latch 32 to lock the movable latch 40, the position of the latch seat 16 can also be changed, forming the latch seat 16 on the front surface of the right-side side rod 14, and then attaching the locking component 30 to the right-side latch seat 16. In this case, the engagement groove 421 on the latch rod 42 is changed from the outer peripheral surface of the left end to the outer peripheral surface of the right end of the latch rod 42. Thus, the engagement groove 421 is still aligned with the communication port 163 of the latch seat 16 on the right side, and the latching part 322 of the latch 32 can still pass through the communication port 163 and engage with the engagement groove 421, fixing the axial position of the movable latch 40 and keeping the latch rod 42 in the closed notch S1 state.

[0069] The above description is only a preferred and feasible embodiment of this utility model. Any equivalent changes made by applying the specification and claims of this utility model should be included within the patent scope of this utility model.

Claims

1. A fall arrestor connection device, characterized in that, include: A hanging bracket has a horizontal bar, with side bars connected to both ends of the horizontal bar. A recess is formed between the two side bars and the horizontal bar, and the recess has a notch. Each of the two side bars includes a rod portion and a sleeve. Each rod portion is connected to the horizontal bar, and each sleeve is connected to the end of each rod portion away from the horizontal bar. Each sleeve has a latch hole, and the two latch holes are located opposite each other on both sides of the notch. A latch seat is formed on the surface of one of the two side bars. One side of the latch seat is connected to the sleeve, and the other side is connected to the rod portion. A communication port is formed at the part of the latch seat connected to the sleeve, and the communication port leads to the latch hole of the side bar. A latch is attached to the latch seat and movable between a locked position and a released position; the latch has an engaging portion, which extends from the communication port into the corresponding latch hole when the latch is in the locked position; and the engaging portion moves out of the communication port when the latch is in the released position. as well as A movable latch has a latch bar that is detachably inserted through the two latch holes to close the notch; an engagement groove is formed on the outer peripheral surface of the latch bar, the engagement groove being directly opposite the communication port; the engaging portion of the latch is inserted into the engagement groove, thereby fixing the axial position of the movable latch.

2. The fall arrestor connection device as described in claim 1, wherein, The latch seat has a latch groove into which the latch is inserted, and the middle portion of the latch is rotatably engaged with the latch seat. A spring seat is formed in the latch groove, and a compression spring is provided in the spring seat. The compression spring pushes the latch against the other side of the latch opposite to the fastening portion.

3. The fall arrestor connection device as described in claim 1, wherein, The latch seat includes a latch groove and an annular wall surrounding the latch groove; the communication port connects the latch groove and the latch through hole, and a spring seat is formed at the portion of the latch groove connected to the rod portion; the latch is inserted into the latch groove and has a shaft hole in the middle, and a fixing hole is formed on each of the opposite sides of the annular wall; a shaft is pivotally inserted through the shaft hole, and the two ends of the shaft are respectively fixed to the fixing holes; the fastening portion is formed on the side of the latch facing the communication port, and a compression spring is provided on the spring seat, the compression spring pushing the latch on the other side opposite to the fastening portion.

4. The fall arrestor connection device as described in claim 1, wherein, A locking hole is formed on each side of the outer peripheral surface of the latch rod, and a locking member is provided in each locking hole. A portion of each locking member protrudes from the surface of the latch rod and engages with the inner side of one of the two sleeves. A head is connected to one end of the latch rod, and the head stops at the outer side of the sleeve. A button is provided on the head to control the protrusion or retraction state of each locking member. When the button is pressed, each locking member is released so that it can retract into the locking hole.

5. The fall arrestor connection device as described in claim 4, wherein, A button groove is formed at the center of the outer end face of the head. The button groove is an elongated hole extending axially along the latch rod. The inner end of the button groove is a closed end and extends into the latch rod. The inner end of each of the latch holes communicates with the button groove. An operating rod passes through the button groove. The operating rod has a columnar part and a conical part. The outer peripheral surface of the columnar part abuts against the two latches. The outer peripheral surface of the conical part forms an accommodating space for accommodating another part of each latch. A return spring is provided between the inner end of the operating rod and the inner end of the button groove. The outer end of the operating rod extends out of the head. The button is formed at the outer end of the operating rod. When the button is pressed, the columnar part is driven to move away from the position abutting against the two latches to release each latch, and the conical part moves to the inner side of the two latch holes, allowing each latch to retract into the latch holes.

6. The fall arrestor connection device as described in claim 5, wherein, A positioning pin hole is formed on the outer peripheral surface of the head, and the positioning pin hole communicates with the button groove; a positioning groove is formed on the outer peripheral surface of the operating rod, and the positioning groove is a long groove extending along the axial direction of the latch rod; a positioning pin is engaged in the positioning pin hole, and the inner end of the positioning pin extends into the positioning groove.

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